Control device, display method, and program

Abstract

To solve a problem in which a user cannot grasp the difference between inputted environmental information and actual usage environment.SOLUTION: A control device includes at least one processor that controls the display on an optical device, and the processor performs the following operations of causing the optical device to display a reception image that accepts input of a control value for factors related to the environment in which the display device is placed, obtaining measurement values for the factors from a sensing device provided on the display device, and causing the optical device to display the received input control value and the measurement values obtained from the sensing device.SELECTED DRAWING: Figure 12

Description

[Technical field]

[0001] The present invention relates to a control device, a display method, and a program. [Background technology]

[0002] Patent Document 1 discloses a technique for appropriately setting the replacement timing of consumable parts used in a projector, which is an example of a display device. According to Patent Document 1, a usage limit threshold of the consumable parts is set based on environmental information related to the usage environment. The environmental information related to the usage environment is input according to the expected usage environment. When the usage amount of the consumable parts reaches the usage limit threshold, a notification is issued to encourage maintenance of the consumable parts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-223112 A Summary of the Invention [Problem to be solved by the invention]

[0004] According to Patent Document 1, the notification allows the user to know that the usage amount of the consumable part has reached the usage limit threshold. However, the user cannot know the difference between the inputted environmental information and the actual usage environment. [Means for solving the problem]

[0005] The control device includes an optical device and at least one processor that controls the display on the optical device, and the at least one processor performs the following operations: displaying on the optical device a reception image that accepts input of a control value for factors related to the environment in which the display device is placed; acquiring measurement values ​​for the factors from a sensing device provided on the display device; and displaying the control value and the measurement values ​​on the optical device.

[0006] The display method includes accepting input of control values ​​for factors related to the environment in which the display device is placed, acquiring measurement values ​​for the factors from a sensing device provided on the display device, and displaying the control values ​​and the measurement values ​​on an optical device.

[0007] The program causes the processor to accept input of control values ​​for factors related to the environment in which the display device is placed, obtain measurement values ​​for the factors from a sensing device provided on the display device, and display the control values ​​and the measurement values ​​on the optical device. [Brief description of the drawings]

[0008] [Figure 1] FIG. [Diagram 2] FIG. 2 is a diagram for explaining a connection between an image supply device and a projector. [Diagram 3] FIG. 1 is a block diagram illustrating a configuration of a projector. [Figure 4] FIG. 2 is a block diagram illustrating the configuration of a control device. [Diagram 5] FIG. 13 is a diagram showing an example of the configuration of an information group. [Figure 6] FIG. 4 is a diagram showing an example of a first display image. [Figure 7] FIG. 11 is a diagram showing an example of a second display image. [Figure 8] FIG. 11 is a diagram showing an example of a reception image. [Figure 9] FIG. 11 is a diagram showing an example of input to a reception image. [Figure 10] 11 is a flowchart showing the flow of a reception process. [Figure 11] FIG. 4 is a diagram showing an example of a first monitoring image. [Figure 12] 10 is a flowchart showing the flow of a display process for displaying a first monitoring image. [Figure 13] FIG. 4 is a diagram showing an example of a first monitoring image. [Figure 14] FIG. 13 is a diagram showing an example of a second monitoring image. [Figure 15]FIG. 13 is a diagram showing an example of a second monitoring image. [Figure 16] FIG. 11 is a diagram showing an example of a first report image. [Figure 17] FIG. 11 is a diagram showing an example of a second report image. [Figure 18] 11 is a flowchart showing the flow of a report display process for displaying a regular report. [Figure 19] FIG. 13 is a diagram showing an example of a third report image. [Figure 20] FIG. 13 is a diagram showing an example of a third monitoring image. [Figure 21] FIG. 13 is a diagram showing an example of a fourth report image. [Figure 22] FIG. 13 shows another example of the fourth report image. [Figure 23] FIG. 11 is a diagram showing an example of a group of information acquired from three projectors. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] As shown in FIG. 1, the control system 1 includes a plurality of projectors 3 and a control device 4. Each projector 3 projects an image onto a projection surface 5 such as a screen or a wall surface. The projector 3 is an example of a display device. Note that an image projected by the projector 3 is supplied to the projector 3 as image data from an image supply device described later. The projector 3 projects an image onto the projection surface 5 based on the image data supplied from the image supply device. Each of the plurality of projectors 3 is connected to a network 6. The control device 4 is connected to the network 6. Each of the projectors 3 and the control device 4 are connected to be able to communicate with each other via the network 6. A configuration in which the plurality of projectors 3 and the control device 4 are connected via the network 6 is called a control system 1.

[0010] The network 6 is, for example, a LAN (Local Area Network), and communication is performed according to the Ethernet (registered trademark) standard. The connection between each projector 3 and the network 6 is not limited to a wired connection and may be a wireless connection. Furthermore, the connection between the control device 4 and the network 6 is not limited to a wired connection and may be a wireless connection. The control system 1 monitors the multiple projectors 3 by the control device 4. The control device 4 is, for example, a server device. The control device 4 may include a display monitor 7. The control device 4 may include an input device 8. The display monitor 7 displays various information. The display monitor 7 is an example of an optical device. The input device 8 is, for example, a mouse, a keyboard, etc. An operator can input various data to the control device 4 via the input device 8.

[0011] In the control system 1, the multiple projectors 3 are divided into multiple groups 9. In the control system 1, the multiple groups 9 are divided according to the location where the projectors 3 are placed. The location where the projectors 3 are placed is an example of the environment in which the projectors 3 are placed. In the example shown in FIG. 1, the multiple groups 9 are divided into three groups 9 according to three locations: a small conference room 9A, a large conference room 9B, and a large hall 9C. In the example shown in FIG. 1, one projector 3 is placed in the small conference room 9A, two projectors 3 are placed in the large conference room 9B, and four projectors 3 are placed in the large hall 9C.

[0012] The control device 4 monitors the state of each projector 3. Examples of the state of the projector 3 include the power on / off state, the temperature and humidity state of the projector 3, and the state of an error occurrence. The monitoring result is notified to an operator of the control system 1 by displaying a display screen on the display monitor 7. The monitoring result may be notified to an operator of the control system 1 by displaying a display screen on a terminal such as a smartphone 10 or a PC (Personal Computer) 11. In this case, the smartphone 10 or the PC 11 is also an example of an optical device. Also, in this case, the display monitor 7 or the input device 8 of the control system 1 may be omitted. The operator of the control system 1 refers to a person who accesses the control system 1 via the control device 4, the smartphone 10, the PC 11, or the like.

[0013] 2, an image supply device 12 can be connected to the projector 3. The image supply device 12 is, for example, a personal computer. The multiple projectors 3 display images based on image data received from the image supply device 12. The multiple projectors 3 display images on the projection surface 5 by projecting image light based on the image data.

[0014] The image supply device 12 can be communicatively connected to the projector 3 via the network 6. The connection between the image supply device 12 and the network 6 is not limited to a wired connection and may be a wireless connection. The image supply device 12 can also be directly connected to the projector 3 without going through the network 6. The direct connection between the image supply device 12 and the projector 3 is not limited to a wired connection and may be a wireless connection. A user who uses the projector 3 can use the projector 3 in a desired location among the small conference room 9A, the large conference room 9B, and the large hall 9C.

[0015] A user in the small conference room 9A can use one projector 3 belonging to group 9 in the small conference room 9A. A user in the large conference room 9B can use two projectors 3 belonging to group 9 in the large conference room 9B. A user in the large hall 9C can use four projectors 3 belonging to group 9 in the large hall 9C. The projectors 3 belonging to each group 9 can be used by multiple users. If there are multiple users in the small conference room 9A, the multiple users can take turns using one projector 3.

[0016] When there are multiple users in the large conference room 9B, the two projectors 3 can be used by the multiple users. Also, when there are multiple users in the large conference room 9B, the two projectors 3 can be used by the multiple users in turn. One user can also use the two projectors 3 in the large conference room 9B. Furthermore, multi-projection can be implemented in which one image is projected using the two projectors 3 in the large conference room 9B.

[0017] When there are multiple users in the large hall 9C, the four projectors 3 can be used by the multiple users. Also, when there are multiple users in the large hall 9C, the four projectors 3 can be used by the multiple users in turn. One user can also use the four projectors 3 in the large hall 9C. Furthermore, multi-projection can be implemented in which one image is projected using the four projectors 3 in the large hall 9C.

[0018] As shown in Fig. 3, the projector 3 includes a communication interface 13, an image processing unit 14, a control unit 15, a memory 16, and a projection optical system 17. The projector 3 further includes a cooling fan 19, an exhaust fan 21, a sensor group 22, and a timer 23. In Fig. 3, the interface is represented as I / F. The communication interface 13 is connected for communication with external devices such as the image supply device 12 and the control device 4.

[0019] The communication interface 13 communicates with an external device in accordance with a predetermined communication protocol. The form of communication may be either wired or wireless. The communication interface 13 includes, for example, a connection port for wired communication, an antenna for wireless communication, and an interface circuit. The communication interface 13 receives image data from the image supply device 12. The communication interface 13 transmits various data to the control device 4. The communication interface 13 outputs the image data received from the image supply device 12 to the image processing unit 14.

[0020] The image processing unit 14 expands the input image data in a frame memory (not shown) and performs image processing on the expanded image data. The image processing performed by the image processing unit 14 includes, for example, resolution conversion processing, shape correction processing such as distortion correction, digital zoom processing, color correction processing, brightness correction processing, etc. The image processing unit 14 reads out the processed image data from the frame memory and outputs the read image data to the projection optical system 17 via the control unit 15 as image information.

[0021] The control unit 15 is a projector controller that controls the projector 3. The control unit 15 performs overall control of the operation of the projector 3 by executing a projector control program stored in the memory 16. The memory 16 is composed of a RAM (Random Access Memory), a ROM (Read Only Memory), and the like. The RAM is used for temporary storage of various data and the like. The ROM stores the control program for controlling the operation of the projector 3, various setting information, and the like. The memory 16 may also include the frame memory described above.

[0022] The image processing unit 14 and the control unit 15 are, for example, processors having a single or multiple CPUs or MPUs. CPU is an abbreviation for "Central Processing Unit". MPU is an abbreviation for "Micro Processing Unit". The image processing unit 14 and the control unit 15 can also be configured with an integrated circuit. The integrated circuit includes an LSI, an ASIC, and a PLD. LSI is an abbreviation for "Large Scale Integration". ASIC is an abbreviation for "Application Specific Integrated Circuit". PLD is an abbreviation for "Programmable Logic Device". PLD includes, for example, an FPGA (Field-Programmable Gate Array). An analog circuit may be included as part of the configuration of the integrated circuit, or a combination of a processor and an integrated circuit may be used. The combination of a processor and an integrated circuit is called a microcontroller (MCU), a SoC (System-on-a-chip), a system LSI, a chipset, or the like.

[0023] The control unit 15 functions as various functional parts by executing a control program stored in the memory 16. The control unit 15 includes, as functional parts, a projection control part 25, a fan control part 26, a sensor control part 27, and a count control part 28. The control unit 15 functions as the projection control part 25, the fan control part 26, the sensor control part 27, and the count control part 28 by executing a control program stored in the memory 16.

[0024] The projection control unit 25 controls the projection optical system 17. The projection optical system 17 includes a light source, a light modulation device, a projection lens, and the like. The light source may be a lamp or a laser light source. The light modulation device includes a light modulation element. The light modulation device modulates light from the light source using the light modulation element based on image data. For example, a transmissive liquid crystal panel is used as the light modulation element. The projection control unit 25 outputs image data received from the image processing unit 14 to the projection optical system 17. The projection control unit 25 controls the projection optical system 17 to project an image based on the image data. The light modulation element may include a reflective liquid crystal panel or an LCOS (Liquid Crystal On Silicon) liquid crystal panel instead of the transmissive liquid crystal panel. The light modulation element may also include a light modulation panel other than a liquid crystal panel, for example, a DMD (Digital Micromirror Device).

[0025] The fan control unit 26 controls the cooling fan 19 and the exhaust fan 21. The cooling fan 19 cools the projection optical system 17. The cooling fan 19 includes a fan that blows air toward the projection optical system 17, and a motor that generates power to drive the fan. The fan control unit 26 controls the driving of the cooling fan 19 by controlling the driving of the motor. The exhaust fan 21 exhausts air inside the projector 3 to the outside. The exhaust fan 21 includes a fan and a motor that generates power to drive the fan. The fan control unit 26 controls the driving of the exhaust fan 21 by controlling the driving of the motor.

[0026] In addition, the fan control unit 26 detects the rotation speeds of the cooling fan 19 and the exhaust fan 21 when they are driven. The rotation speeds of the cooling fan 19 and the exhaust fan 21 are replaced by the rotation speeds of the motors that drive them. That is, the fan control unit 26 detects the rotation speeds of the motors when they are driven. The rotation speeds of the motors are detected by measuring the current values ​​flowing through the coils of the motors. The rotation speeds of the cooling fan 19 and the exhaust fan 21 are each a type of information that indicates the state of the projector 3. The rotation speeds of the cooling fan 19 and the exhaust fan 21 are stored in the memory 16 as data on the first fan rotation speed and the second fan rotation speed, respectively. In addition, the data on the first fan rotation speed and the second fan rotation speed are transmitted from the communication interface 13 to the control device 4.

[0027] The sensor control unit 27 controls the sensor group 22. The sensor group 22 includes a first temperature sensor 31, a second temperature sensor 32, and a humidity sensor 33. The first temperature sensor 31 is disposed near the projection optical system 17. The first temperature sensor 31 detects the temperature near the projection optical system 17. The first temperature sensor 31 outputs the result of detection based on an instruction from the sensor control unit 27 to the control unit 15 as an internal temperature. The second temperature sensor 32 is disposed near an air vent formed in an exterior case (not shown) of the projector 3. The air vent is an entrance and exit for air inside the exterior case. The air inside the exterior case is exhausted from the air vent to the outside of the exterior case by driving the exhaust fan 21.

[0028] The second temperature sensor 32 detects the temperature near the ventilation opening. The second temperature sensor 32 outputs the detected result as the external temperature to the control unit 15 based on the instruction of the sensor control unit 27. The data of the internal temperature and the external temperature received by the control unit 15 is stored in the memory 16. In addition, the data of the internal temperature and the external temperature is transmitted to the control device 4 from the communication interface 13.

[0029] The humidity sensor 33 is disposed inside an exterior case (not shown) of the projector 3. The humidity sensor 33 detects the humidity inside the projector 3. Based on instructions from the sensor control section 27, the humidity sensor 33 outputs the detection result as the internal humidity to the control unit 15. The internal humidity data received by the control unit 15 is stored in the memory 16. In addition, the internal humidity data is transmitted from the communication interface 13 to the control device 4. The first temperature sensor 31, the second temperature sensor 32, and the humidity sensor 33 are each an example of a sensing device.

[0030] The count control unit 28 measures various times by controlling the timer 23. Examples of times measured by the count control unit 28 include the cumulative operating time of the light source of the projection optical system 17, the cumulative operating time of the cooling fan 19, and the cumulative operating time of the exhaust fan 21. The projector 3 also includes a filter (not shown). The filter is disposed, for example, at an air vent of the exterior case. The filter captures foreign matter such as dust floating in the air flowing in from the air vent. Examples of times measured by the count control unit 28 include the cumulative usage time of the filter. The timing of replacing various replacement parts is determined by measuring the various cumulative operating times and cumulative usage times described above. In other words, the timing of replacing replacement parts such as the light source, the cooling fan 19, the exhaust fan 21, and the filter is determined by measuring various times by the count control unit 28.

[0031] As shown in FIG. 4, the control device 4 includes a control device communication interface 35, a control device control unit 36, and a control device memory 37. In FIG. 4, the interface is denoted as I / F. The control device communication interface 35 is communicatively connected to the projector 3. The control device communication interface 35 communicates with the projector 3 according to a predetermined communication protocol. The communication may be either wired or wireless. In addition, the control device 4 can also be communicatively connected to the smartphone 10 and the PC 11 shown in FIG. 1 via the control device communication interface 35.

[0032] The control device communication interface 35 includes, for example, a connection port for wired communication, an antenna for wireless communication, and an interface circuit. The control device communication interface 35 receives information indicating the status of each projector 3 from each projector 3. The control device communication interface 35 outputs the information received from the projector 3 to the control device control unit 36. The control device control unit 36 ​​stores the information received from the projector 3 in the control device memory 37.

[0033] The control device control unit 36 ​​is a control device controller that controls the control device 4. The control device control unit 36 ​​is, for example, a processor having a CPU (Central Processing Unit) and an MPU (Micro Processing Unit). The control device control unit 36 ​​performs overall control of the operation of the control device 4 by executing a control program stored in the control device memory 37. The control device memory 37 is composed of a RAM (Random Access Memory), a ROM (Read Only Memory), etc. The RAM is used for temporarily storing various data, etc. The ROM stores the control program for controlling the operation of the control device 4, various setting information, etc.

[0034] The control device control unit 36 ​​functions as various functional parts by executing a control program stored in the control device memory 37. The control device control unit 36 ​​includes, as functional parts, a display control unit 38, a judgment control unit 39, an arithmetic control unit 40, and an input receiving unit 41. The control device control unit 36 ​​functions as the display control unit 38, the judgment control unit 39, the arithmetic control unit 40, and the input receiving unit 41 by executing a control program stored in the control device memory 37.

[0035] The display control unit 38 controls the display monitor 7 shown in Fig. 1 to display various information on the display monitor 7. The judgment control unit 39 shown in Fig. 4 judges the state of the projector 3 based on the information received from the projector 3. The calculation control unit 40 performs various calculation processes based on the information received from the projector 3. The input receiving unit 41 receives input of various data input by the operator via the input device 8 shown in Fig. 1.

[0036] An example of information that the control device 4 receives from the projector 3 will be described. The types of information that the control device 4 receives from the projector 3 are, for example, six types, as shown in FIG. 5. The six types of information are, for example, the first fan rotation speed, the second fan rotation speed, the internal temperature, the external temperature, the internal humidity, and the accumulated usage time. Each of the six types of information is a factor related to the environment in which the projector 3 is placed. The six types of information constitute an information group 51. The control device 4 receives the six types of information from each projector 3 as the information group 51. Each of the six types of information indicates the state of the projector 3. The factors related to the environment in which the projector 3 is placed can also be said to be information that directly or indirectly indicates environmental factors that may affect the performance of the projector.

[0037] In addition to the information group 51, the control device 4 also acquires the power on / off state of each projector 3, the state of error occurrence of each projector 3, and the like. FIG. 6 shows an example of a first display image 52. The first display image 52 shows the states of the multiple projectors 3 in a list format. As shown in FIG. 6, the power on / off state of each projector 3, the state of error occurrence of each projector 3, and the like can be viewed in a list format. The first display image 52 shown in FIG. 6 is displayed on the display monitor 7 shown in FIG. 1. The display on the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4.

[0038] As shown in FIG. 6, the first display image 52 displays a device icon 53, a group name, a device name, a model number, a power status, an input status, and other statuses. The device icon 53 indicates the type of display device. In the example shown in FIG. 6, all of the seven display devices are projectors 3. In addition to the projector 3, other types of display devices include a liquid crystal display device and an organic EL (Electro Luminescence) display device. The group name indicates a name given to a group for each environment in which the projector 3 is placed. In this embodiment, the group name indicates each of the small conference room 9A, the large conference room 9B, and the large hall 9C.

[0039] The device name indicates a name given to each projector 3. The multiple projectors 3 can be individually identified by the device name. The model number indicates the model of the projector 3. The model number allows the model of the projector 3 to be specified. The power status indicates whether the power of each projector 3 is on or off. When "ON" is displayed, it indicates that the power is on, and when "OFF" is displayed, it indicates that the power is off. The input status indicates the transmission path of the image data supplied from the image supply device 12. Other statuses indicate error information generated in the projector 3, etc. The first display image 52 shown in FIG. 6 allows the operator of the control system 1 to view the statuses of the multiple projectors 3 in a list format.

[0040] FIG. 7 shows an example of the second display image 54. The second display image 54 shows the states of the multiple projectors 3 in a list format. The second display image 54 includes group icons 55. The group icons 55 are icons that are assigned to each group 9. A different icon is assigned to each group 9 as the group icon 55. In this embodiment, the group icons 55 include a group icon 55A, a group icon 55B, and a group icon 55C. The group icon 55A indicates the small conference room 9A. The group icon 55B indicates the large conference room 9B. The group icon 55C indicates the large hall 9C.

[0041] Each group icon 55 is connected to a device icon 53 indicating the projectors 3 belonging to the group 9 indicated by the group icon 55. In the second display image 54, an equipment name is assigned to the device icon 53. That is, in the second display image 54, it is possible to identify the names of the projectors 3 belonging to the group 9 for each group 9. For example, the group icon 55C indicating the large hall 9C is connected to device icons 53 indicating the four projectors 3 belonging to the large hall 9C.

[0042] The device names of the four projectors 3 belonging to the large hall 9C are large hall-1, large hall-2, large hall-3, and large hall-4 shown in Fig. 6. That is, the group icon 55C is connected to the device icons 53 representing large hall-1, large hall-2, large hall-3, and large hall-4. The second display image 54 shown in Fig. 7 allows the operator of the control system 1 to visually view the status of the multiple projectors 3 in a list format. This can improve the visual effect in understanding the monitoring status.

[0043] In the control system 1, an operator of the control system 1 can set various management values ​​for factors related to the environment in which the projector 3 is placed. A method for inputting the management values ​​will be described using temperature and humidity as examples of factors related to the environment in which the projector 3 is placed. FIG. 8 shows an example of a reception image 57. The reception image 57 is an example of a UI (User Interface). The control values ​​for temperature and humidity are received as input to the control device 4 via the reception image 57. The operator of the control system 1 can input the management values ​​for temperature and humidity for each projector 3 via the reception image 57. The reception image 57 is displayed on the display monitor 7 under the control of the display control unit 38 shown in FIG. 4.

[0044] As shown in FIG. 8, the reception image 57 allows the user to input the usage time, usage environment, and notification interval for each projector 3. The usage time is the time when the projector 3 operates and the days of the week when the projector 3 operates. The usage environment is the temperature control value, humidity control value, and sunlight effect. The temperature control value is the control value for the internal temperature of the projector 3. The control system 1 can monitor the internal temperature of the projector 3 against the temperature control value set by the operator. When the internal temperature of the projector 3 exceeds the temperature control value, the control device 4 causes the display monitor 7 to display information indicating that the internal temperature has exceeded the temperature control value.

[0045] The humidity control value is a control value for the internal humidity of the projector 3. In the control system 1, the internal humidity of the projector 3 can be monitored against the humidity control value set by the operator. When the internal humidity of the projector 3 exceeds the humidity control value, the control device 4 causes the display monitor 7 to display information indicating that the internal humidity has exceeded the humidity control value. The sunlight effect is information indicating the time period during which sunlight hits the projector 3. The sunlight effect is an example of first time period information, and is also an example of supplementary information. The field in the reception image 57 for receiving input of the sunlight effect is an example of a supplementary information reception image. Note that the image for receiving input of the sunlight effect may be an image different from the reception image 57.

[0046] The notification interval is the interval at which the periodic report is displayed on the display monitor 7. This setting allows the operator to view the monitoring results of the multiple projectors 3 by the control system 1 as a periodic report at a predetermined time interval or at a specified date and time. The periodic report may be distributed by email to the operator of the control system 1 at a predetermined time interval or at a specified date and time.

[0047] The supplementary information is not limited to the influence of sunlight. Information indicating the time period during which an air conditioner acting on the projector 3 operates can also be applied as the supplementary information. Furthermore, both the time period during which the projector 3 is exposed to sunlight and the time period during which an air conditioner acting on the projector 3 operates can also be applied as the supplementary information. The information indicating the time period during which an air conditioner acting on the projector 3 operates is an example of second time period information.

[0048] FIG. 9 shows an example of input to the reception image 57. The operator of the control system 1 can input the usage time, the usage environment, and the notification interval via the reception image 57, as shown in FIG. 9. In the example shown in FIG. 9, the usage time is from 8:00 to 20:00 from Monday to Friday. The input form of the usage time may be a form in which a different time period can be specified for each date. In the example shown in FIG. 9, the temperature control value is 24° C. to 30° C. as the usage environment. The input of the humidity control value is omitted. The sunshine effect is from 9:00 to 12:00. The notification interval is 30 days. These input values ​​are received by the input receiving unit 41 from the control device communication interface 35 shown in FIG. 4. The input values ​​received by the input receiving unit 41 are stored in the control device memory 37.

[0049] Fig. 10 shows the flow of the reception process for receiving input. The reception process is performed by the control device control unit 36 ​​of the control device 4 executing a reception method in accordance with a reception program. As shown in Fig. 10, the input reception process includes steps S1 to S5. In step S1, the control device control unit 36 ​​displays a reception image 57 on the display monitor 7. Next, in step S2, the control device control unit 36 ​​determines whether the input via the reception image 57 has been confirmed.

[0050] At this time, the control device control unit 36 ​​judges whether the input has been confirmed depending on whether the setting button of the reception image 57 shown in FIG. 9 has been pressed. When the operator of the control system 1 presses the setting button of the reception image 57, the control device control unit 36 ​​judges that the input has been confirmed. When the judgment result in step S2 shown in FIG. 10 is YES, that is, when the input has been confirmed, the process proceeds to step S3. When the judgment result in step S2 is NO, that is, when the input has not been confirmed, the process proceeds to step S5. In step S3, the control device control unit 36 ​​acquires the input value input via the reception image 57. Next, in step S4, the control device control unit 36 ​​stores the acquired input value in the control device memory 37.

[0051] In step S5, the control device control unit 36 ​​judges whether the input has been cancelled. At this time, the control device control unit 36 ​​judges whether the input has been cancelled based on whether the cancel button on the reception image 57 shown in FIG. 9 has been pressed. When the operator of the control system 1 presses the cancel button on the reception image 57, the control device control unit 36 ​​judges that the input has been cancelled. When the judgment result in step S5 shown in FIG. 10 is YES, that is, when the input has been cancelled, the reception process is terminated. When the judgment result in step S5 is NO, that is, when the input has not been cancelled, the process proceeds to step S2. Note that step S1 shown in FIG. 10 corresponds to the display control unit 38. Steps S3 and S4 correspond to the input reception unit 41.

[0052] FIG. 11 shows an example of a first monitoring image 58. The first monitoring image 58 is an example of a monitoring result by the control system 1. The first monitoring image 58 is displayed in real time on the display monitor 7 under the control of the display control unit 38 shown in FIG. 4. As shown in FIG. 11, in the first monitoring image 58, the status of the multiple projectors 3 can be visually confirmed in a list format. The first monitoring image 58 displays a device icon 53, a group name, a device name, a model number, an operating time, a temperature control value, a temperature measurement value, a humidity control value, and a humidity measurement value. The device icon 53, the group name, the device name, and the model number are the same as those in the first display image 52 shown in FIG. 6, and therefore a description thereof will be omitted.

[0053] The operating time, the temperature control value, and the humidity control value are each input values ​​received by the input receiving unit 41 via the reception image 57. In other words, the operating time, the temperature control value, and the humidity control value are each input values ​​input by the operator of the control system 1 via the reception image 57. The temperature measurement value and the humidity measurement value are each measurement values ​​detected by the sensor group 22 shown in FIG. 3. The temperature measurement value is the internal temperature detected by the first temperature sensor 31. The humidity measurement value is the internal humidity detected by the humidity sensor 33.

[0054] As shown in FIG. 11, the first monitoring image 58 can display the control value that the control device 4 accepts as input and the measurement value that the control device 4 acquires from the projector 3. The control value that the control device 4 accepts as input is a control value for factors related to the environment in which the projector 3 is placed. The measurement value that the control device 4 acquires from the projector 3 is a measurement value acquired from the sensor group 22. The measurement value acquired from the sensor group 22 is a measurement value for factors related to the environment in which the projector 3 is placed. In other words, according to the control device 4, the above control value and the above measurement value can be notified to the operator of the control system 1 via the display monitor 7. In the example shown in FIG. 9, the input of the humidity control value is omitted in the reception image 57. When the input of the temperature and humidity control values ​​is omitted, a default allowable value set in the control system 1 may be applied instead of the control value.

[0055] 12 shows the flow of the display process for displaying the first monitoring image 58. The display process is implemented by the control device control unit 36 ​​of the control device 4 executing a display method in accordance with a display program. As shown in FIG. 12, the display process for the first monitoring image 58 includes steps S21 to S27. In step S21, the control device control unit 36 ​​reads a management value from the control device memory 37. Next, in step S22, the control device control unit 36 ​​acquires various measurement values ​​from each projector 3. The measurement values ​​acquired from each projector 3 are the information group 51 shown in FIG. 5.

[0056] Next, in step S23 shown in FIG. 12, the control device control unit 36 ​​controls the display of the control value and the measurement value. In step S23, the control device control unit 36 ​​causes the display monitor 7 to display the control value and the measurement value. At this time, the control device control unit 36 ​​causes the display monitor 7 to display the control value and the measurement value in the form of the first monitoring image 58 shown in FIG. 11. Next, in step S24 shown in FIG. 12, the control device control unit 36 ​​judges whether or not the measurement value exceeds the control value. When the judgment result in step S24 is YES, that is, when the result indicates that the measurement value exceeds the control value, the process proceeds to step S25. When the judgment result in step S24 is NO, that is, when the result indicates that the measurement value does not exceed the control value, the process proceeds to step S26.

[0057] In step S25, the control device control unit 36 ​​causes the display monitor 7 to display a warning. At this time, the control device control unit 36 ​​causes the display monitor 7 to display the warning in the form of a first monitoring image 58 shown in Fig. 11. At this time, the warning can be displayed, for example, in the status column of the first monitoring image 58 shown in Fig. 13. In the example shown in Fig. 13, the internal temperature of the projector 3 in the main hall-1 exceeds the management value. By displaying the warning on the display monitor 7 in the form of the first monitoring image 58, the operator of the control system 1 can clearly see at a glance which projector 3 has generated a warning.

[0058] The method of displaying a warning on the first monitoring image 58 is not limited to displaying text. For example, the warning can be expressed by inverting the color of the device icon 53 of the corresponding projector 3, blinking the device icon 53, etc. The warning can also be expressed by blinking the corresponding measured value, highlighting the measured value, etc.

[0059] Returning to Fig. 12, in step S26, the control device control unit 36 ​​stores the measurement value in the control device memory 37 shown in Fig. 4. Next, in step S27 shown in Fig. 12, the control device control unit 36 ​​judges whether or not there is an instruction to end monitoring. When the judgment result in step S27 is YES, that is, when there is an instruction to end monitoring, the control device control unit 36 ​​ends the display process. When the judgment result in step S27 is NO, that is, when there is no instruction to end monitoring, the process proceeds to step S22. Note that steps S23 and S25 shown in Fig. 12 correspond to the display control unit 38. Step S24 corresponds to the judgment control unit 39.

[0060] FIG. 14 shows an example of a second monitoring image 59. The second monitoring image 59 is a display image corresponding to the second display image 54 shown in FIG. 7. As shown in FIG. 14, the second monitoring image 59 shows the monitoring results of a plurality of projectors 3 by a group icon 55 and a device icon 53. The second monitoring image 59 shown in FIG. 14 is an example in which the example result of the first monitoring image 58 shown in FIG. 13 is reflected. In the example of the first monitoring image 58 shown in FIG. 13, a warning has been issued for the internal temperature of the projector 3 in the main hall-1. This result is reflected in the example of the second monitoring image 59 shown in FIG. 14.

[0061] As shown in FIG. 14, the equipment icon 53 of the projector 3 in the large hall-1 is inverted in color. The inversion of the color of the equipment icon 53 indicates a warning. The second monitoring image 59 shown in FIG. 14 allows the operator of the control system 1 to visually view the statuses of the multiple projectors 3 in a list format. This can improve the visual effect of understanding the monitoring status. Note that the method of displaying a warning in the second monitoring image 59 is not limited to the inversion of the color of the equipment icon 53. For example, the warning can also be expressed by blinking the equipment icon 53. Furthermore, for example, as shown in FIG. 15, the warning can also be expressed by displaying a warning icon 61 indicating a warning on the equipment icon 53 of the corresponding projector 3. Two of these methods can be combined, or three or more methods can be combined.

[0062] FIG. 16 shows an example of the first report image 63. The first report image 63 is one of the periodic reports created for each notification period. The calculation control unit 40 shown in FIG. 4 creates the first report image 63 for each notification period. The notification period is input via the reception image 57 shown in FIG. 9. That is, the notification period is a period input by the operator of the control system 1. The notification period is an example of a predetermined time interval. In the example shown in FIG. 9, the notification period is set to 30 days. When the notification period is set to 30 days, the calculation control unit 40 shown in FIG. 4 creates the first report image 63 every 30 days. In the example shown in FIG. 16, the first report image 63 shows the monitoring results for the previous 30 days. That is, the first report image 63 is a history of past monitoring results.

[0063] In the example shown in FIG. 16, the results of the internal temperature for 7 days are extracted from the monitoring results for 30 days. As shown in FIG. 16, the first report image 63 shows a graph of a control line 66 and a measurement value 67. The control line 66 is a temperature control value input via the reception image 57 shown in FIG. 9. As shown in FIG. 16, the control line 66 corresponding to 30° C., which is an upper control value among the temperature control values, is the control line 66A. The control line 66 corresponding to 24° C., which is a lower control value among the temperature control values, is the control line 66B. The measurement value 67 is a measurement value of the internal temperature stored in the control device memory 37 shown in FIG. 4. The first report image 63 shown in FIG. 16 is displayed on the display monitor 7 shown in FIG. 1. The display on the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4.

[0064] The first report image 63 shown in FIG. 16 can display the control value input by the control device 4 and the past measurement value 67 acquired by the control device 4 from the projector 3. Therefore, the control device 4 can inform the operator of the control system 1 of the control value and the measurement value 67 via the display monitor 7. The control value is a control value for factors related to the environment in which the projector 3 is placed. The measurement value 67 is a past measurement value for factors acquired from the sensor group 22. The first report image 63 allows the operator of the control system 1 to understand the history of past monitoring results. In the first report image 63, if there is a history of the measurement value 67 exceeding the control line 66, the portion where the measurement value 67 exceeded the control line 66 is highlighted. In the example shown in FIG. 16, the portion where the measurement value 67 exceeded the control line 66 is highlighted by surrounding it in a frame. This allows the operator of the control system 1 to clearly understand the portion where the measurement value 67 exceeded the control line 66 at a glance.

[0065] FIG. 17 shows an example of a second report image 68. The second report image 68 is one of the periodic reports created for each notification period. The calculation control unit 40 shown in FIG. 4 creates the second report image 68 for each notification period. The periodic report created for each notification period includes the above-mentioned first report image 63 and the second report image 68. The second report image 68 is a history of past monitoring results corresponding to the notification period. The second report image 68 is displayed on the display monitor 7 shown in FIG. 1. The display on the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4.

[0066] 17, in the second report image 68, the monitoring result history of multiple projectors 3 can be visually confirmed in a list format. The second report image 68 displays the group name, device name, model number, operating time, temperature warning history, and humidity warning history. The group name, device name, model number, and operating time are the same as those in the first monitoring image 58 shown in FIG. 11, so the explanation will be omitted.

[0067] The temperature warning history indicates the number of times that the internal temperature exceeded the control value in past monitoring results corresponding to the notification period. The humidity warning history indicates the number of times that the internal humidity exceeded the control value in past monitoring results corresponding to the notification period. The second report image 68 allows the operator of the control system 1 to know the number of times that the measured value exceeded the control value in the history of past monitoring results. Note that, although an example of displaying a periodic report for each notification period has been shown in this embodiment, an example of displaying a periodic report at a specified date and time can also be applied. In this case, instead of inputting the notification period, it is sufficient to change to the reception image 57 that accepts input of a specified date and time.

[0068] FIG. 18 shows the flow of the report display process for displaying a regular report. The report display process is implemented by the control device control unit 36 ​​of the control device 4 executing a report display method in accordance with a report display program. The report display process for a regular report includes steps S41 to S47. In step S41, the control device control unit 36 ​​reads the notification period from the control device memory 37. Next, in step S42, the control device control unit 36 ​​judges whether the notification period has elapsed. If the judgment result in step S42 is YES, that is, if the notification period has elapsed, the process proceeds to step S43. If the judgment result in step S42 is NO, that is, if the notification period has not elapsed, the process of step S42 is repeated until the notification period has elapsed.

[0069] In step S43, the control device control unit 36 ​​reads the management value from the control device memory 37. Next, in step S44, the control device control unit 36 ​​reads the measurement value from the control device memory 37. The measurement value read from the control device memory 37 is the information group 51 previously acquired from the projector 3. Note that the information group 51 acquired from the projector 3 has been saved in the control device memory 37 shown in FIG. 4 by the control device control unit 36 ​​in step S26 shown in FIG. 12.

[0070] Returning to Fig. 18, in step S45, the control device control unit 36 ​​creates a first report image 63. Next, in step S46, the control device control unit 36 ​​creates a second report image 68. Next, in step S47, the control device control unit 36 ​​causes the display monitor 7 to display the first report image 63 and the second report image 68. Steps S45 and S46 shown in Fig. 18 correspond to the calculation control unit 40 shown in Fig. 4. Step S47 shown in Fig. 18 corresponds to the display control unit 38.

[0071] FIG. 19 shows an example of a third report image 69. The third report image 69 is one of the periodic reports created for each notification period. The calculation control unit 40 shown in FIG. 4 creates the third report image 69 for each notification period. The periodic report created for each notification period includes the above-mentioned first report image 63, second report image 68, and third report image 69. The third report image 69 is a history of past monitoring results corresponding to the notification period. The third report image 69 is displayed on the display monitor 7 shown in FIG. 1. The display on the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4.

[0072] As shown in Fig. 19, the third report image 69 shows the monitoring result history of multiple projectors 3 using a group icon 55 and a device icon 53. In the example shown in Fig. 19, the color of the device icon 53 of the projector 3 that has a history of measurement values ​​exceeding the management value in the past monitoring results corresponding to the notification period is displayed inverted. The third report image 69 allows the operator of the control system 1 to know the projectors 3 that have a history of measurement values ​​exceeding the management value in the past monitoring results corresponding to the notification period.

[0073] The third report image 69 shown in FIG. 19 allows the operator of the control system 1 to visually view the history of the monitoring results of the multiple projectors 3 in a list format. This can improve the visual effect of understanding the history of the monitoring results. The method of displaying the history of the measured values ​​exceeding the control value in the third report image 69 is not limited to inverting the color of the device icon 53. For example, the history of the measured values ​​exceeding the control value can also be expressed by blinking the device icon 53. Furthermore, for example, as shown in FIG. 15, it can also be expressed by displaying a warning icon 61 indicating a warning on the device icon 53 of the corresponding projector 3. Two of these methods can be combined, or three or more methods can be combined.

[0074] A display image obtained by combining the third report image 69 and the second monitoring image 59 shown in FIG. 14 can also be applied. FIG. 20 shows an example of a third monitoring image 71. The third monitoring image 71 is a display image obtained by combining the third report image 69 shown in FIG. 19 and the second monitoring image 59 shown in FIG. 14. That is, the third monitoring image 71 displays the monitoring results of a plurality of projectors 3 in real time, and also displays the history of past monitoring results corresponding to the notification period in which the measured values ​​exceeded the management value. In the third monitoring image 71, the color of the device icon 53 of the projector 3 whose measured values ​​exceeded the management value in real time is displayed inverted. Furthermore, in the third monitoring image 71, the device icon 53 of the projector 3 whose measured values ​​exceeded the management value in the past monitoring results corresponding to the notification period is surrounded by a dashed line.

[0075] 20, the measurement value of the projector 3 in the large hall-4 exceeds the management value in real time. Also, the projector 3 in the large conference room-2 has a history of measurement values ​​exceeding the management value in past monitoring results corresponding to the notification period. From the third monitoring image 71, the operator of the control system 1 can ascertain the projector 3 whose measurement values ​​exceed the management value in real time and the projector 3 whose measurement values ​​have a history of exceeding the management value in the past.

[0076] FIG. 21 shows an example of the fourth report image 72. The fourth report image 72 is one of the periodic reports created for each notification period. The calculation control unit 40 shown in FIG. 4 creates the fourth report image 72 for each notification period. The fourth report image 72 is a periodic report in which the information on the influence of sunlight shown in FIG. 9 is added to the first report image 63 shown in FIG. 16. In the fourth report image 72, the information on the influence of sunlight is displayed as the hours of sunlight. In the fourth report image 72, the time periods during which sunlight hits the projector 3 are highlighted. As described above, the information on the influence of sunlight is one of the supplementary information. Therefore, the fourth report image 72 is a periodic report in which the supplementary information is added to the first report image 63 shown in FIG. 16.

[0077] The fourth report image 72 is a history of past monitoring results corresponding to the notification period. The fourth report image 72 is displayed on the display monitor 7 shown in FIG. 1. The display on the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4. The regular report may be configured to include the fourth report image 72 instead of the first report image 63. That is, the regular report may be configured to include the fourth report image 72, the second report image 68, and the third report image 69. Furthermore, the regular report may be configured to include the fourth report image 72, the second report image 68, and the third report image 69 in addition to the first report image 63.

[0078] The fourth report image 72 allows the operator of the control system 1 to understand the history of past monitoring results. In the fourth report image 72, if there is a history of the measurement value 67 exceeding the control line 66, the portion where the measurement value 67 exceeds the control line 66 is highlighted. In the example shown in FIG. 21, the portion where the measurement value 67 exceeds the control line 66 is highlighted by surrounding it in a frame. This allows the operator of the control system 1 to clearly understand the portion where the measurement value 67 exceeds the control line 66 at a glance. Furthermore, the fourth report image 72 can display information showing the relationship between the time period where the measurement value 67 exceeds the control line 66 and the supplementary information. Therefore, since the supplementary information is added to the fourth report image 72, the operator of the control system 1 can be informed of the relationship between the time period where the measurement value 67 exceeds the control line 66 and the supplementary information.

[0079] In the example shown in Figure 21, the internal temperature starts to rise from about 8:00 a.m., and the rise becomes larger after 10:00 a.m. when sunlight hits. Therefore, information can be obtained that suggests that temperature management in the morning should be reviewed. This provides an opportunity for the operator of the control system 1 to find a solution, such as increasing the air conditioning or taking measures to block sunlight.

[0080] Fig. 22 shows another example of the fourth report image 72. In the example shown in Fig. 22, the time period from 4 pm to 5 pm has been entered as the time period during which sunlight hits the projector 3. In the example shown in Fig. 22, the time period during which the measurement value 67 exceeds the control line 66 on Wednesday overlaps with the hours of sunshine. However, on other days of the week, the time period during which the measurement value 67 exceeds the control line 66 does not match with the hours of sunshine. From the fourth report image 72 shown in Fig. 22, the operator of the control system 1 can determine not to take the effect of sunlight into consideration regarding the rise in internal temperature.

[0081] An abnormality occurrence display that displays that an abnormality has occurred in one of the three projectors 3 in the control system 1 will be described. An example will be described using three of the four projectors 3 in the large hall 9C shown in FIG. 1. The three projectors 3 are identified as a first projector 3A, a second projector 3B, and a third projector 3C. The first projector 3A, the second projector 3B, and the third projector 3C may be any of the four projectors 3 in the large hall 9C.

[0082] FIG. 23 shows an example of an information group 51 acquired from three projectors 3. The three projectors 3 are a first projector 3A, a second projector 3B, and a third projector 3C. The information group 51 acquired from the first projector 3A is a first information group 51A. The information group 51 acquired from the second projector 3B is a second information group 51B. The information group 51 acquired from the third projector 3C is a third information group 51C. Each piece of information in the first information group 51A is first information. Each piece of information in the second information group 51B is second information. Each piece of information in the third information group 51C is third information. The first information is an example of a first measurement value. The second information is an example of a second measurement value. The third information is an example of a third measurement value.

[0083] In the example shown in FIG. 23, the internal temperature of the first information group 51A is different from the internal temperatures of the second information group and the third information group. That is, in the example shown in FIG. 23, the difference between the internal temperature of the second information group 51B and the internal temperature of the third information group 51C is within a predetermined range, and the difference between the internal temperature of the first information group 51A and the internal temperature of the second information group 51B exceeds the predetermined range. The predetermined range for the internal temperature is 10° C. In the control system 1, when the example shown in FIG. 23 occurs, an abnormality occurrence display is performed. The abnormality occurrence display is displayed on the display monitor 7 shown in FIG. 1. The display by the display monitor 7 is controlled by the display control unit 38 shown in FIG. 4. The abnormality occurrence display is displayed on the first monitoring image 58 and the second monitoring image 59.

[0084] The first projector 3A, the second projector 3B, and the third projector 3C are arranged in the same environment, the large hall 9C. For this reason, it is efficient to carry out maintenance work such as replacing consumable parts for these three projectors at the same time. If the timing of maintenance work differs for the three projectors, projection in the large hall 9C will have to be stopped frequently, which is inefficient. When one of the three projectors has a value different from the other two in any of six types of information that are factors related to the environment in which the projectors 3 are arranged, an abnormality occurrence display is performed. The abnormality occurrence display can inform the three projectors 3 belonging to the same group 9 that the measured value of the first projector 3A is different from the measured value of the other projectors 3.

[0085] The display of the abnormality occurrence can provide an opportunity for the operator of the control system 1 to consider measures to prevent the timing of maintenance work from differing among the three units in the group 9. There are various possible measures to prevent the timing of maintenance work from differing. For example, there is a method of providing additional cooling by using auxiliary air conditioning such as adding an external fan. Another method is to install a sunshade to block sunlight. If the temperature is too low, there are measures such as installing an air conditioning windshield or adjusting the air conditioning louvers. Note that the number of projectors 3 belonging to the group 9 is not limited to three. The number of projectors 3 belonging to the group 9 may be more than three.

[0086] The following is a summary of this disclosure. (Supplementary Note 1) A control device including an optical device and at least one processor that controls display on the optical device, wherein the at least one processor performs the following operations: displaying on the optical device a reception image that accepts input of a control value for a factor related to the environment in which the display device is placed; acquiring measurement values ​​for the factor from a sensing device provided on the display device; and displaying the control value and the measurement value on the optical device. According to this control device, the reception image displayed on the optical device can prompt the worker to input a control value. The control device causes the optical device to display the control value and the measurement value. Thus, the control value for factors related to the environment in which the display device is placed and the measurement value for the factors acquired from the sensing device can be notified to the worker via the optical device. By referring to the display, the user can grasp the difference between the input control value and the measurement value indicating the actual usage environment.

[0087] (Appendix 2) The control device described in Appendix 1, wherein the at least one processor further performs the steps of causing the optical device to display information indicating that the measurement value has exceeded the control value when the measurement value has exceeded the control value. According to this control device, when a measured value exceeds a control value, it is possible to notify an operator that the measured value has exceeded the control value.

[0088] (Supplementary Note 3) The control device according to Supplementary Note 1 or 2, wherein the display device includes a fan, and the factor is at least one of temperature, humidity, and a rotation speed of the fan. This control device can inform the operator of at least one of the conditions of temperature, humidity, and fan rotation speed.

[0089] (Supplementary Note 4) The control device described in any one of Supplementary Notes 1 to 3, wherein the at least one processor further performs the following: causing the optical device to display a supplementary information reception image that accepts input of supplementary information including at least one of first time zone information indicating a time zone during which sunlight hits the display device and second time zone information indicating a time zone during which an air conditioning device acting on the display device is operating; and, when the measurement value exceeds the management value, causing the optical device to display information indicating that the measurement value has exceeded the management value, causing the optical device to display information indicating the relationship between the time zone during which the measurement value exceeded the management value and the supplementary information. According to this control device, it is possible to inform the operator of the relationship between the time period in which the measured value exceeded the control value and the supplementary information.

[0090] (Appendix 5) A control device described in any one of Appendices 1 to 4, wherein the at least one processor causes the optical device to display the control value and the measurement value at a specified time interval or at a specified date and time. According to this control device, the control values ​​and measured values ​​can be notified at a specified time interval or at a specified date and time.

[0091] (Appendix 6) A control device described in any one of Appendices 1 to 5, wherein the display device is regarded as a first display device, and a plurality of the display devices including the first display device are divided into a plurality of groups according to the environment in which the display device is placed, and the first group to which the first display device belongs includes a second display device different from the first display device, and a third display device different from the first display device and the second display device, and the at least one processor acquires the measurement value at the first display device as a first measurement value, the measurement value at the second display device as a second measurement value, and the measurement value at the third display device as a third measurement value, and when a difference between the second measurement value and the third measurement value is within a predetermined range and a difference between the first measurement value and the second measurement value exceeds the predetermined range, causes the optical device to display information regarding the first measurement value. This control device can notify a first display device, a second display device and a third display device belonging to the same group that the measurement value of the first display device is different from the measurement values ​​of the other display devices.

[0092] (Appendix 7) A display method including: accepting input of a control value for a factor related to the environment in which a display device is placed; acquiring a measurement value for the factor from a sensing device provided in the display device; and displaying the control value and the measurement value on an optical device. This display method displays the control values ​​and the measured values ​​on the optical device, and therefore the control values ​​for factors related to the environment in which the display device is placed and the measured values ​​for the factors obtained from the sensing device can be notified to the operator via the optical device.

[0093] (Appendix 8) A program that causes a processor to execute the following operations: accepting input of control values ​​for factors related to the environment in which a display device is placed; acquiring measurement values ​​for the factors from a sensing device provided in the display device; and displaying the control values ​​and the measurement values ​​on an optical device. According to this program, the control values ​​and the measured values ​​can be displayed on the optical device, and therefore the control values ​​for factors related to the environment in which the display device is placed and the measured values ​​for the factors obtained from the sensing device can be notified to the worker via the optical device. [Explanation of symbols]

[0094] 1...control system, 3...projector, 3A...first projector, 3B...second projector, 3C...third projector, 4...control device, 5...projection surface, 6...network, 7...display monitor, 8...input device, 9...group, 9A...small conference room, 9B...large conference room, 9C...large hall, 10...smartphone, 11...PC, 12...image supply device, 13...communication interface, 14...image processing unit, 15...control unit, 16...memory, 17...projection optical system, 19...cooling fan, 21...exhaust fan, 22...sensor group, 23...timer, 25...projection control unit, 26...fan control unit, 27...sensor control unit, 28...count control unit, 31...first temperature sensor, 32...second temperature sensor , 33...humidity sensor, 35...control device communication interface, 36...control device control unit, 37...control device memory, 38...display control unit, 39...judgment control unit, 40...arithmetic control unit, 41...input reception unit, 51...information group, 51A...first information group, 51B...second information group, 51C...third information group, 52...first display image, 53...device icon, 54...second display image, 55, 55A, 55B, 55C...group icon, 57...reception image, 58...first monitoring image, 59...second monitoring image, 61...warning icon, 63...first report image, 66, 66A, 66B...control line, 67...measured value, 68...second report image, 69...third report image, 71...third monitoring image, 72...fourth report image.

Claims

1. An optical device; at least one processor for controlling the display of said optical device; The at least one processor: displaying, on the optical device, a reception image for receiving an input of a management value for a factor related to an environment in which the display device is placed; Obtaining a measurement value for the factor from a sensing device provided on the display device; and displaying the control value and the measurement value on the optical device. Control device.

2. The at least one processor is further configured to, when the measurement value exceeds the control value, cause the optical device to display information indicating that the measurement value has exceeded the control value. The control device according to claim 1 .

3. The display device includes a fan, The factor is at least one of temperature, humidity, and the rotation speed of the fan. The control device according to claim 1 .

4. The at least one processor: displaying, on the optical device, a supplemental information receiving image for receiving input of supplemental information including at least one of first time zone information indicating a time zone during which sunlight hits the display device and second time zone information indicating a time zone during which an air conditioner acting on the display device operates; When the measurement value exceeds the management value, when the optical device is caused to display information indicating that the measurement value has exceeded the management value, the optical device is further caused to display information indicating a relationship between a time period during which the measurement value exceeded the management value and the supplementary information. The control device according to claim 1 .

5. The at least one processor causes the optical device to display the control value and the measurement value at a predetermined time interval or at a specified date and time. The control device according to claim 1 .

6. The display device is designated as a first display device, and the plurality of display devices including the first display device are divided into a plurality of groups according to the environments in which the display devices are arranged; a first group to which the first display device belongs includes a second display device different from the first display device, and a third display device different from the first display device and the second display device, The at least one processor: obtaining the measurement value at the first display device as a first measurement value, the measurement value at the second display device as a second measurement value, and the measurement value at the third display device as a third measurement value; when a difference between the second measurement value and the third measurement value is within a predetermined range and a difference between the first measurement value and the second measurement value exceeds the predetermined range, causing the optical device to display information related to the first measurement value. The control device according to any one of claims 1 to 5.

7. Accepting an input of a management value for a factor related to an environment in which the display device is placed; Obtaining a measurement value for the factor from a sensing device provided on the display device; displaying the control value and the measured value on an optical device; Display methods including.

8. Accepting an input of a management value for a factor related to an environment in which the display device is placed; Obtaining a measurement value for the factor from a sensing device provided on the display device; displaying the control value and the measurement value on an optical device; A program that causes a processor to execute.

Images