JP2019124872A - Projection device, communication device, control method thereof, and program - Google Patents

Abstract

To provide a projection device capable of reducing an influence on operation as the projection device when performing light control by making a plurality of projection devices each having also a lighting function be linked with one another.SOLUTION: A projection device according to an embodiment includes: projection means which switchably performs operation of projection on a predetermined projection plane by light to be emitted and emission of illumination light by light to be emitted; communication means for receiving a first light control instruction for adjusting an amount of light to be emitted by making a plurality of projection devices be linked with one another, from a communication device; and control means for controlling an amount of light emitted by the projection means according to the received first light control instruction. Here, when the control means receives the first light control instruction, the control means performs control whether or not the amount of light to be emitted is adjusted according to the first light control instruction on the basis of the operation of the projection means.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a projection device having an illumination function, a communication device for operating the projection device, a control method of the same, and a program.

  An apparatus having both an illumination function and a projection function is known (e.g., Patent Document 1). The projection apparatus disclosed in Patent Document 1 realizes both functions of an illumination apparatus and a projection apparatus by switching diffusion or focusing of light emitted from one light source. There is also known a technology for interlocking the illuminance of a plurality of lighting devices (Patent Document 2). Patent Document 2 discloses a technology capable of collectively performing dimming control and the like by interlocking a plurality of lighting devices without individually controlling each lighting device.

JP, 2013-125166, A Unexamined-Japanese-Patent No. 2004-63218

  However, when the interlocking control of the light control of each device disclosed in Patent Document 2 is applied to a projection device having an illumination function, a disadvantage may occur to the user. For example, when there is a mixture of a device operating as a lighting function and a device operating as a projection function, it may be desirable to perform brightness adjustment (that is, output control of a light source) by collective lighting control by simple operation. In such a case, when all the devices are subjected to collective light adjustment control, the brightness of the device operating as the illumination is adjusted as intended, but the brightness of the device operating as the projection function is also adjusted simultaneously . That is, when viewing a video content or the like with a device operating as a projection function, the brightness of the projected video may be interlocked and controlled unexpectedly, which may interfere with viewing of the video content.

  This invention is made in view of the said subject, The objective is the technique which can reduce the influence on operation | movement as a projection apparatus, when light-modulating by making several projection apparatuses which have an illumination function interlock | cooperate interlocking | linkage It is to realize.

  In order to solve this problem, for example, the projection apparatus of the present invention has the following configuration. In other words, the projection unit that operates so as to be able to switch between the projection on the predetermined projection plane by the light to be emitted and the projection of the illumination light by the light to be emitted, and the plurality of projection devices are interlocked to adjust the light amount Communication means for receiving, from the communication device, a first light adjustment instruction to perform the control; and control means for controlling the light amount of the light to be emitted by the projection means in accordance with the received first light adjustment instruction. And the control unit adjusts the light quantity of the light to be emitted according to the first dimming instruction based on the operation of the projection unit when the first dimming instruction is received. It is characterized by controlling whether it is or not.

  According to the present invention, it is possible to reduce the influence on the operation as a projection apparatus in the case where light adjustment is performed by interlocking a plurality of projection apparatuses having an illumination function.

FIG. 2 is a view for explaining an example of a projection system according to the first embodiment. FIG. 2 is a block diagram showing an example of the functional configuration of the smartphone according to the first embodiment. FIG. 2 is a block diagram showing an example of the functional configuration of a projector according to the first embodiment. FIG. 3 is a diagram showing state transition of the projector according to the first embodiment. FIG. 6 is a view showing an example of a UI for performing illumination and projection mode change in the smartphone according to the first embodiment. FIG. 6 is a view showing an example of a UI that performs light adjustment control by the smartphone according to the first embodiment. FIG. 6 is a view for explaining the data structure of a light adjustment control command according to the first embodiment. 6 is a flowchart showing a series of operations of the smartphone and the projector according to the first embodiment. 12 is a flowchart showing a series of operations of the projector according to modification 1-1. 12 is a flowchart showing a series of operations of the projector according to Modification 1-2. FIG. 14 is a view showing a UI for forced interlock setting of a projector according to a modification 1-3. 12 is a flowchart showing a series of operations of the projector according to Modification 1-3. , 10 is a flowchart showing a series of operations of the projector according to the second embodiment. FIG. 7 is a diagram for explaining setting of a light control rate according to a second embodiment. FIG. 8 is a view showing an example of a UI for setting the positional relationship between a projection surface and a projector according to the second embodiment. FIG. 8 is a view showing an example of a UI for setting the positional relationship between a projection surface and a projector according to the second embodiment. FIG. 7 is a view for explaining setting of a light control rate with respect to a distance according to the second embodiment. 10 is a flowchart showing a series of operations of another projector according to the second embodiment. , 10 is a flowchart showing a series of operations of the projector according to modification 2-1. The figure for demonstrating the setting of the light control rate which concerns on modification 2-1. FIG. 18 is a view showing an example of a UI for setting the positional relationship between a projection surface and a projector according to a modification example 2-1.

(Embodiment 1)
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. In the following, an example using a projector provided with an illumination function will be described as an example of a projection apparatus. However, the present embodiment is applicable not only to the projector but also to other devices capable of providing the illumination function and the projection function. For example, a medical device having an illumination function and a projection function, a digital signage device, a device of an on-vehicle system, and the like may be included. Moreover, below, the example using a smart phone for remote control of light control is demonstrated as an example of a communication apparatus. However, this embodiment is applicable not only to a smart phone but also to other devices capable of remotely controlling light control. For example, these devices may include a digital camera, a game machine, a tablet terminal, a personal computer, a glasses-type or watch-type terminal, and the like, which remotely control light adjustment control.

  First, a projection system according to the present embodiment will be described with reference to FIG. The projection system according to the present embodiment includes, for example, a smartphone 100 and a plurality of projectors 200. The projector 200a, the projector 200b, and the projector 200c (also referred to as the projector 200 when the projector is simply collectively referred to) are connected by a wired or wireless network. Each projector is provided with two operation modes, an illumination mode (details will be described later) and a projection mode (details will be described later), and can be appropriately switched by the operation of each projector or smartphone 100. Each projector can illuminate the room when operating in the illumination mode, and can project an image or video content on a screen etc when operating in the projection mode.

  The smartphone 100 executes connection establishment processing with each projector 200 via wireless communication, and can remotely control various functions of the projector 200 from the smartphone 100. In the projector 200, a unique identifier (ID) for identifying each projector is set in advance, and is used when the user recognizes or designates a control target.

  In the example illustrated in FIG. 1, the projection system includes three projectors and one smartphone. However, the number of projectors is not necessarily limited to three.

(Configuration of smartphone)
FIG. 2 shows an example of a functional configuration of (smart phone) as an example of the communication device of the present embodiment. Note that one or more of the functional blocks shown in FIG. 2 may be realized by hardware such as an ASIC or programmable logic array (PLA), or realized by a programmable processor such as a CPU or MPU executing software. May be Also, it may be realized by a combination of software and hardware. Therefore, in the following description, even when different functional blocks are described as an action subject, the same hardware can be realized as the subject.

  The control unit 101 includes, for example, a CPU (or MPU), develops a program stored in the ROM 104 in the RAM 103, executes the program to control each block of the smartphone 100, or controls data transfer between the blocks. Do.

  The communication unit 102 includes a communication circuit and an antenna corresponding to a predetermined communication method. The communication unit 102 transmits and receives files of various information data such as video data, image data, video files, and other command signals to / from other devices via a local network, an intranet, the Internet or the like. The communication unit 102 can use, for example, a communication method based on a wireless LAN.

  The RAM 103 includes a volatile storage medium, and is used for expansion of a program stored in the ROM 104 described later, a frame memory of a display image, holding of other temporary information, and the like. The ROM 104 includes, for example, a non-volatile storage medium including a semiconductor memory, and stores various information data such as program data, image data, and user setting data.

  The operation unit 105 includes operation members such as buttons, switches, and a touch panel, and receives an instruction to turn on the power from the user, an instruction to switch to the standby mode, an operation instruction to the operation menu screen and the like. The display unit 106 includes, for example, display devices such as a liquid crystal display, an organic EL display, and electronic paper, and displays video data, an operation menu screen, and the like. Further, the display unit 106 incorporates a touch sensor, and can notify the control unit 101 of information on the operation of the user on the menu screen to be displayed.

  The display control unit 107 drives the display unit 106 to display image data and the like read from the ROM 104 or the like by the control unit 101. The imaging unit 108 is configured of an imaging optical system (lens), an imaging element (sensor) or the like configured by a CMOS or the like, and can convert captured light into an electric signal.

  The battery 109 supplies power to a power supply unit 110 described later. The power supply unit 110 controls power supply to each block in the smartphone 100. The power supply input unit 111 receives AC power from the outside, rectifies it to a predetermined voltage, and supplies the rectified voltage to the power supply unit 110.

  With the configuration described above, the smartphone 100 performs, for example, the following operation as a basic operation. When the control unit 101 receives an instruction to turn on the power from the user via the operation unit 105, the control unit 101 instructs the power supply unit 110 to supply power to each block, and puts each block in a standby state. When power is supplied to each block, the control unit 101 reads a program stored in the ROM 104 and develops the program in the RAM 103. The control unit 101 executes initialization processing for each block by executing the expanded program, and causes the display unit 106 to display standby image data in a steady state.

  The programs stored in the RAM 103 include an OS (Operating System) and a predetermined application program operating on the OS. The control unit 101 can acquire an application program that is stored in a server on the Internet and operates on the OS via the communication unit 102 and can operate the application program. The control unit 101 can also communicate with an external device via the communication unit 102 based on an application program. When the smartphone 100 receives an instruction to turn off the power from the user via the operation unit 105, the smartphone 100 stores user setting data and the like in the ROM 104 based on the instruction from the control unit 101, and performs end processing on each block.

(Projector configuration)
Next, with reference to FIG. 3, a functional configuration example of the projector 200 according to the present embodiment will be described. One or more of the functional blocks shown in FIG. 3 may be realized by hardware such as an ASIC or a programmable logic array (PLA), or realized by a programmable processor such as a CPU or an MPU executing software. May be Also, it may be realized by a combination of software and hardware. Therefore, in the following description, even when different functional blocks are described as an action subject, the same hardware can be realized as the subject.

  The control unit 201 includes, for example, a CPU (or an MPU), develops a program stored in the ROM 215 in the RAM 232, and executes the program to control each block of the projector 200. The control unit 201 is bus-connected to each of the other blocks, and can perform access such as control instruction and data exchange to each block.

  The operation unit 202 includes operation members such as a button, a dial, and a touch panel, receives a power on instruction from a user, a standby mode transition instruction, and the like, and notifies the control unit 201. The power supply unit 203 is a power supply unit that controls power supply to each block of the projector 200.

  The liquid crystal unit 204 includes, for example, one liquid crystal panel or three liquid crystal panels, and the like, and forms an image on the liquid crystal panel according to driving by the liquid crystal drive unit 205. The liquid crystal drive unit 205 drives the liquid crystal panel of the liquid crystal unit 204 based on the image signal input from the image processing unit 216, and causes the liquid crystal unit 204 to form an image. The light source 206 is a light source that supplies light to the liquid crystal unit 204.

  The projection optical system 207 projects an optical image obtained by supplying light emitted from the light source 206 to the liquid crystal unit 204 on a screen (not shown). The projection optical system includes a plurality of lenses such as a zoom lens and a focus lens, and by adjusting the position of these lenses, it is possible to adjust the zoom magnification and focus of the image to be projected. The projection optical system 207 includes a light diffusion unit (not shown) disposed on the light path. The light diffusion unit is disposed on the light path, and based on an instruction from the optical system control unit 209, it is possible to transmit light without diffusing it and to diffuse light through it. The above-described projection mode is to transmit light without being diffused, and the above-described illumination mode is to diffuse and transmit light. As the light diffusion portion, for example, PDLC (Polymer Dispersed Liquid Cristal) or reverse PDLC which can control transmission and diffusion of light by an applied voltage can be used. Alternatively, the projection optical system 207 may include a movable optical member such as a diffusion plate that can be inserted into and retracted from the light path.

  The light source control unit 208 adjusts the brightness in projection (in the illumination mode described later, the brightness of the illumination) by adjusting the light amount of the light source 206 and the like according to the light control rate described later according to the instruction of the control unit 201. be able to. The light control rate is an adjustment parameter for adjusting the light amount of the light source and the like, and can be set by the user via the operation unit 202 or the smartphone. The optical system control unit 209 controls the operation of the zoom lens, the focus lens, and the like of the projection optical system 207 in accordance with an instruction from the control unit 201, and also controls the above-described light diffusion unit.

  The communication unit 214 can perform communication in accordance with a communication method conforming to a predetermined communication standard such as, for example, a wired LAN, a wireless LAN, or Bluetooth (registered trademark). When the communication unit 214 performs communication by a wireless LAN, the communication unit 214 can transmit and receive packets conforming to a supported wireless LAN standard, including an antenna, an RF unit, a baseband unit, and the like. Then, the communication unit 214 transmits, through a network such as an intranet or the Internet, files of various data such as video and image data, video files, and other command signals to an external device such as another projector, smartphone, or server. It is possible to transmit and receive between. For example, the projector 200 can receive image data transferred from the smartphone 100 and a command for remote control via the communication unit 214, and can transmit a command for control to another projector. .

  The ROM 215 is a non-volatile storage medium configured of, for example, a semiconductor memory, and is an internal memory that stores program data, user setting data, and the like. The image processing unit 216 performs change processing such as the number of frames, the number of pixels, and the image shape / gradation processing on a video signal input from the outside such as the communication unit 214 or the USB I / F 217 described later. Includes a processor for image processing. The change process includes, for example, a process of enlarging or reducing the input image to a size suitable for display by the liquid crystal unit 204, an image correction process such as distortion correction on the input image, and the like. Further, the image processing unit 216 does not have to be a dedicated processor, and the control unit 201 may execute the same processing as the image processing unit 216 according to a program stored in the ROM 215, for example. The image processing unit 216 can also perform the above-described change processing on an image or video reproduced by the control unit 201, in addition to the video signal input from the outside. The image processing unit 216 can also perform image analysis on a captured image captured by the imaging unit 224 described later, and specify the captured object.

  A USB I / F 217 is a USB interface for receiving files of various information data such as video data, image data, and video files from an external device, or writing the files to the outside. The USB I / F 217 may also be used to connect a pointing device, a keyboard, a USB flash memory, and the like.

  The timer 218 internally measures time, and detects the operation time of the projector 200, the operation time of each block, and the like. The thermometer 219 includes a sensor that measures the temperature, and measures the temperature of the light source 206 of the projector 200, the temperature of the liquid crystal unit 204, and the like. The cooling unit 220 is a member that includes, for example, a rotating fan, a heat sink, and the like, and cools the projector 200 by releasing the heat in the projector 200 to the outside.

The file reproduction unit 221 decodes file data or the like encoded according to an instruction of the control unit 201. The infrared receiving unit 222 receives infrared light from a remote controller attached to the projector 200 or other devices, and notifies the control unit 201 of the received signal as an electric signal.
The focus detection unit 223 detects the distance between the projector 200 and the screen using, for example, an infrared ray, and detects an appropriate focal length. The imaging unit 224 includes an imaging element that converts an incident optical image of an object into an electrical signal, and for example, images the direction of the screen and outputs a captured image in the screen direction.

  The display unit 228 includes a display lamp and a display panel such as a liquid crystal panel. The display unit 228 is disposed in the main body of the projector 200, and displays the state of the projector, a warning, and the like according to an instruction of the display control unit 229. The display control unit 229 controls the display unit 228 according to an instruction of the control unit 201.

  The battery 230 includes, for example, a rechargeable secondary battery that can be repeatedly charged, and supplies power to the power supply unit 203 when AC power is not used, such as when the projector 200 is carried and used. The power supply input unit 231 receives AC power from the outside, rectifies it to a predetermined voltage, and supplies the rectified current to the power supply unit 203.

  The RAM 232 is a volatile recording medium including a semiconductor memory or the like, and expands the program stored in the ROM 215 when the control unit 201 executes the program, stores variables of the program being executed, and the like. To Moreover, it is used also as a frame memory etc. of a projection image.

  The photometry unit 233 includes a photometric sensor that measures the brightness of ambient light of the projector 200, and measures the brightness of the ambient light periodically according to an instruction of the control unit 201 or at predetermined time intervals. The measurement result is notified to the control unit 201.

  With the configuration described above, the projector 200 performs, for example, the following operation as a basic operation. When detecting the connection of the power supply to the power input unit 231, the control unit 201 instructs the power supply unit 203 to supply power to a predetermined block in order to shift to the standby mode (standby state). In the standby mode, for example, the infrared receiving unit 222 and the communication unit 214 become operable, and can receive an instruction from an external device. Next, in response to receiving an instruction to transition to the projection mode from the user via the operation unit 202, the control unit 101 instructs the power supply unit 203 to supply power to each block necessary for the projection operation. . Then, when power is supplied to each block, the control unit 201 instructs the light source control unit 208 to start light emission from the light source 206. In the projection mode, the control unit 201 projects, for example, an image or video content stored in the RAM 232 on a screen surface at a predetermined distance.

  Next, the control unit 201 instructs the optical system control unit 209 to adjust the projection optical system 207 based on the focus information and the like obtained by the focus detection unit 223. The optical system control unit 209 operates the zoom lens and the focus lens of the projection optical system 207 according to an instruction of the control unit 201, and causes the projection light to form an image on the screen. The control unit 201 may repeat acquisition of focus information and the like by the focus detection unit 223 and control of the projection optical system 207 according to the focus information and the like. In this way, the projection is ready. In addition, as described above, the light diffusing unit is provided inside the projection optical system 207. Therefore, when the control unit 201 receives an instruction to switch to the illumination mode from the user via the operation unit 202, for example, the light diffusion unit can diffuse white light and project it as illumination light.

  The control unit 201 instructs each block to execute the end process in response to the reception of the power-off instruction from the user via the operation unit 202. Then, when preparation for the termination is completed, the power supply unit 203 sequentially terminates the power supply to the blocks other than the blocks to be operated at the standby time, and shifts to the standby mode.

  Here, with reference to the state transition diagram shown in FIG. 4, the state transition between each operation mode of the projector 200 according to the present embodiment and the operation mode will be described. As described above, when AC power is input to the power input unit 231 first, the projector 200 transitions to the standby mode 401. Next, when an instruction to switch to the projection mode (projection mode ON) is received from the user via operation unit 202 or communication unit 214, projector 200 transitions to projection mode 402. In addition, when an instruction (illumination mode ON) to transition to the illumination mode is received from the user in the standby mode 401, transition to the illumination mode 403 is made. The illumination mode and the projection mode can mutually transition the mode, and both can be transited based on a user instruction (projection mode ON / illumination mode ON). When an instruction to turn off the power (power off) is received from the user in the projection mode 402 or the illumination mode 403, transition to the standby mode 401 is made from any mode. In this manner, the projector 200 can transition to any one of the standby mode 401, the projection mode 402, and the illumination mode 403 based on a user operation. When transitioning to the illumination mode, the projector 200 controls the light diffusion unit in the projection optical system 207, and diffuses the light output from the light source 206.

(Operation of light control by smartphone)
Next, an operation of light adjustment control by the smartphone according to the present embodiment will be described. The dimming control according to the present embodiment performs dimming control collectively or individually to a plurality of projectors 200 existing in the same network from the smartphone 100. The connection establishment process between the smartphone 100 and each projector 200 is completed, and it is assumed that the smartphone 100 can perform control of the operation mode of the projector 200 and light control. In this light adjustment control, although the light adjustment control performed collectively to each projector 200 from the smartphone 100 is performed, the projector 200 operating in the projection mode operates not to respond to the light adjustment control from the smartphone 100. .

  First, a user interface (UI) (mode change menu) displayed on the display unit 106 of the smartphone 100 for changing the operation mode of each projector will be described with reference to FIG. 5. In FIG. 5, a column 501 displays the ID of the projector 200 that exists in the same network and has established a connection with the smartphone 100. The icon 502a represents a control button for switching to the illumination mode, and the icon 502b represents a control button for switching to the projection mode. Also, when the operation mode of the projector 200 is the “lighting” mode, the icon 502 b is grayed out and displayed. On the other hand, in the “projection” mode, the icon 502 a is grayed out and displayed. In the example shown in FIG. 5, the projector 200 with ID "1" is operating in the illumination mode, the projector 200 with ID "2" is operating in the illumination mode, and the projector 200 with ID "3" is operating in the projection mode. ing. When the user performs touch operation on each icon, a control instruction corresponding to the icon touched on the projector 200 with the corresponding ID is transmitted. By operating the UI shown in FIG. 5, each projector 200 can be controlled to transition individually to either the projection mode or the illumination mode. In the present embodiment, as described above, the projector 200 c with ID “1” is controlled to operate as the illumination mode, the projector 200 b with ID “2” as the illumination mode, and the projector 200 a with ID “3” as the projection mode. It is assumed that

  FIG. 6 illustrates a UI (light control menu) displayed on the display unit 106 of the smartphone 100 for performing light control of each of the projectors 200. A column 601 displays the ID of the projector 200 to be controlled. Individual devices can be controlled by specifying the projectors 200 whose IDs are “1” to “3”, and each projector 200 can be controlled collectively by specifying “ALL”. A column 602 displays an adjustable value that can be specified for the dimming rate, and the numerical value of the adjusted value is displayed, for example, as a percentage of the amount of light output from the light source (in the example of FIG. 6, displayed as a percentage). A button 603 is a setting button for causing the projector 200 corresponding to the ID designated in the column 601 to apply the adjustment value for the dimming ratio designated in the column 602. When the setting button is pressed, the control unit 101 transmits control data in which the designated adjustment value (that is, the dimming ratio) is set to the projector 200 corresponding to the ID designated by the user.

  Reference numeral 700 shown in FIG. 7 illustrates the structure of control data transmitted from the smartphone 100 to the projector 200. As control data, a transmission source port number, a destination port number, a packet length, and a check sum are stored in the header, and data of, for example, 701 to 703 are stored in the payload. In 701 to 703, the ID of the projector 200 to be controlled, the control content for the projector 200, and the adjustment value related to the control are stored.

  For example, when light adjustment control according to the present embodiment is performed, data corresponding to the light adjustment control is stored in 702, and the adjustment value shown in the column 602 of FIG. For example, the control data is distributed to each of the projectors 200 in accordance with UDP (User Datagram Protocol) communication. However, the protocol is not limited to this, and other communication methods and protocols may be used as long as data can be simultaneously delivered to a plurality of devices.

(A series of operations related to dimming control)
Next, with reference to FIG. 8, a series of operations relating to light adjustment control will be described. FIG. 8A shows a series of operations related to light adjustment control when using the UI shown in FIG. 6 in the smartphone 100. This operation is performed by the control unit 101 of the smartphone 100 developing a program stored in the ROM 104 into the RAM 103 and executing the program. In addition, this operation is started in a state in which the user activates the light adjustment control application displayed on the display unit 106 of the smartphone 100 by a touch operation, and the UI illustrated in FIG. 6 is displayed.

  At S101, control unit 101 accepts control object selection. For example, when the user touches the control target in the column 601 in the UI, the operation unit 105 generates an interrupt to the control unit 101, and the control unit 101 causes the handler according to the object (button) and the coordinates touched by the user. Execute processing by In the processing by the handler, the control unit 101 stores the touched ID information in the RAM 103.

  In S102, the control unit 101 receives an instruction of the light control rate from the user. When the user performs a touch operation on the adjustment values in the column 602 shown in FIG. 6, the operation unit 105 generates an interrupt to the control unit 101, and the processing by the handler according to the object (button) and coordinates touched by the user is performed. Run. In the processing by the handler, the control unit 101 stores the touched adjustment value information in the RAM 103 as a light control rate.

  At S103, control unit 101 transmits a light adjustment instruction command to projector 200. When the user performs a touch operation on the control target of the button 603 in FIG. 6, the operation unit 105 generates an interrupt to the control unit 101, and executes processing by a handler according to the object (button) and coordinates touched by the user. . In the processing by this handler, the control unit 101 reads out the ID and adjustment value written to the above-mentioned RAM 103, and generates control data shown in FIG. Then, control data is transmitted to the projector 200 corresponding to the selected ID via the communication unit 102. For example, in the example shown in FIG. 6, it is assumed that a value indicating “ALL” is selected as the ID in the column 601, and 80 is designated as the adjustment value for light adjustment in the column 602. In this case, the control unit 101 transmits control data (light control instruction command) including an adjustment value of 80% to the projector 200 whose ID is “1” to “3”. After completing the transmission of the light adjustment instruction command, the control unit 101 ends the series of operations.

  Next, with reference to FIG. 8B, a series of operations relating to light adjustment control in the projector 200 will be described. The operation sequence is operated by the control unit 201 of the projector 200 developing a program stored in the ROM 215 into the RAM 232 and executing the program. Also, this operation sequence is started in a state where the user activates the projector 200 and power is supplied to each block.

  In S201, the control unit 201 waits for reception of a dimming instruction command from the smartphone 100, and then determines whether the dimming instruction command has been received from the smartphone 100. The means for waiting is not particularly limited, and any means such as interrupt or polling may be used. When the control unit 201 detects the reception of the light adjustment instruction command (transmitted from the smartphone 100 in S103 described above) through the communication unit 214, the control unit 201 advances the process to S202. On the other hand, if the light adjustment instruction command is not detected even after the predetermined time has elapsed, the process returns to S201 again.

  In S202, the control unit 201 determines whether the ID of the dimming instruction command indicates "ALL". Specifically, the control unit 201 reads out the data of the received light adjustment instruction command to the RAM 232, and refers to the area in which the ID in the data of the command is stored. If the stored ID indicates "ALL" for collective control, the process proceeds to S203. On the other hand, if the ID does not indicate "ALL", the process proceeds to S206.

  In step S203, the control unit 201 further determines whether the current operation mode of the own apparatus is the illumination mode. For example, the control unit 201 determines the current operation mode of the own apparatus with reference to the information indicating the current operation mode, which is written to the RAM 232 when changing the operation mode. If the control unit 201 determines that the operation mode of the own device is not the illumination mode, the control unit 201 advances the process to S204 (because the own device is in the projection mode). On the other hand, when the control unit 201 determines that the current operation mode of the own device is the illumination mode, the control unit 201 advances the process to S205.

  In S204, since the current operation mode is the projection mode, the control unit 201 discards the light control instruction command without performing the light control operation. Thereafter, the control unit 201 ends the series of operations.

  On the other hand, in step S205, the control unit 201 controls the light amount of the light source 206 based on the read adjustment value for light adjustment. When the plurality of projectors 200 that have received the light adjustment instruction command perform light adjustment based on the adjustment value in S205, the light adjustment of the plurality of projectors 200 by one light adjustment instruction in the smartphone 100 (that is, light adjustment together) Control) will be realized.

  In S206, the control unit 201 determines whether the designated ID is an ID corresponding to the own device. That is, the control unit 201 reads out the ID information of the own device from the RAM 232, and compares it with the ID information included in the data received in S201. If the designated ID matches the ID of the own apparatus, the control unit 201 advances the process to step S205 in order to respond to the dimming instruction. On the other hand, when the designated ID does not match the ID of the own device, the series of operations is ended without executing anything.

  As described above, the smartphone 100 can specify a plurality of projectors 200 to be subjected to light adjustment control in the light adjustment menu UI, and can transmit control data for light adjustment control to the plurality of projectors 200. did. At this time, in the light control menu UI, a plurality of projectors can be collectively selected to be controlled. In addition, when the projector 200 receives an instruction for collective dimming control from the smartphone 100, the projector 200 controls whether to execute dimming according to the dimming instruction command based on the operation mode of the own device. When operating in the projection mode, the light control instruction is not executed. In this way, when light control is performed on a plurality of projectors, it is possible to prevent the light adjustment control from being unexpectedly performed in the projector 200 operating in the projection mode. That is, when light control is performed by interlocking a plurality of projectors having an illumination function, the influence of the operation of the projection function can be reduced.

(Modification 1-1)
Next, a modified example (modified example 1-1) of the first embodiment will be described. In the first embodiment, when the projector 200 receives the light adjustment instruction command, the light adjustment instruction command is discarded if it is operating in the projection mode. On the other hand, in the modification 1-1, when the projector 200 is operating in the projection mode, the light control instruction is further processed depending on whether or not the video content is being projected. The configurations of the smartphone 100 and the projector 200 of the present modification are substantially the same as in the first embodiment. For this reason, the same reference numerals are given to the same components, and redundant explanations are omitted, and differences will be mainly described.

(A series of operations related to dimming control)
The operation of the smartphone 100 according to the modification 1-1 is substantially the same as that of the first embodiment, so the operation of the projector 200 will be described. FIG. 9 shows a series of operations relating to light adjustment control in the projector 200 according to the present modification, and the state at the start is the same as the operation relating to light adjustment control described in the first embodiment.

  The control unit 201 executes S201 to S202 and S206 in the same manner as in the first embodiment, and executes the processing in the case where the ID designated in the smartphone 100 does not indicate “ALL”. If it is determined in S203 that the operation mode of the projector 200 is not the illumination mode, the control unit 201 further determines in S301 whether or not predetermined video content is being projected. The control unit 201 refers to the state information written in the RAM 232 at the time of state transition of projection and non-projection, content reproduction, and the like, and determines whether or not predetermined video content is projected. The predetermined video content is, for example, content being projected while being received from an external device such as the smartphone 100 or the like. The control unit 201 writes the reception state of the content in the RAM 232, and determines whether the video content being projected has been received or has been received before a certain period. If the control unit 201 reads out the projection state from the RAM 232 and determines that the video content received from the external apparatus or received during a predetermined period is being projected, the process advances to step S204. On the other hand, when the video content is not projected while being received from the external device, the control unit 201 proceeds to the process of S205 to perform light adjustment control.

  In addition, the control unit 201 may determine whether or not a predetermined video content is projected, based on whether or not a predetermined format video content is projected. It is determined whether the video content of a predetermined format is a predetermined video format, is distributed by a predetermined video streaming protocol, or is video content distributed (or delivered) from a predetermined video distribution service. You may In addition, it may be determined whether the moving image is to be reproduced together with the BGM while switching a plurality of still images or short moving images, or whether to mirror the screen of a predetermined mobile terminal.

  On the other hand, when it is determined that the predetermined video content is not being projected, the process proceeds to S205. That is, the control unit 201 may discard the light adjustment instruction command during projection of the predetermined video content because light adjustment control performed during projection of the predetermined video content may interfere with content viewing (that is, S204). Go to On the other hand, the control unit 201 proceeds to step S205 according to the light adjustment instruction from the smartphone 100, since the possibility of becoming an obstacle to viewing the projection content is low unless the predetermined video content is being projected.

  In the above-described example, an example in which the light control instruction command is discarded when the control unit 201 determines that the predetermined video content is being projected in S301 has been described. However, for example, the control unit 201 temporarily writes the light adjustment instruction and the adjustment value for light adjustment into the RAM 232 or the ROM 215, and reads out the information when changing to the illumination mode again to perform the light adjustment control. It may apply.

  Furthermore, in the above-described example, the light adjustment instruction command is executed based on the projection state of the predetermined video content, but even if the light adjustment instruction is executed based on, for example, a connection state with an external device distributing the video content. Good. When the projector 200 is not connected to a predetermined external device for distributing video content, it may be regarded as not displaying the video content (that is, there is no user to view), and may respond to the light control instruction. For example, the control unit 201 can establish a connection with a specific external device to which video content is distributed via the communication unit 214, and indicates the establishment of the connection with the external device to the RAM 232 when the connection is established. Write down the information. Then, when the light adjustment instruction is received, the above-mentioned information may be read out from the RAM 232, and the light adjustment instruction may be responded if it is not connected to the specific external device. In addition, the control unit 201 may determine whether or not a menu regarding setting of the projector 200 is displayed by a user operation, or whether or not an operation for various settings is performed. May be determined.

  As described above, when the projector 200 receives the light adjustment instruction command from the smartphone 100, it is determined whether to execute the light adjustment instruction command according to the operation mode of the own device and the projection state of the video content. In this way, it is possible to prevent the light adjustment control from being unexpectedly performed during the projection of the video content, and it is possible that the possibility of viewing the video content is low even if the operation mode is the projection mode. Can respond to dimming instructions.

(Modification 1-2)
Next, a further modification (modification 1-2) of the first embodiment will be described. In the modification 1-1, whether to execute the light adjustment instruction command is determined according to the projection state of the video content of the projector 200. On the other hand, in the modification 1-2, whether or not to execute the light control instruction command is determined according to whether or not the projector 200 is set to forcibly perform the light control instruction. The configurations of the smartphone 100 and the projector 200 of the present modification are substantially the same as in the first embodiment. For this reason, the same reference numerals are given to the same components, and redundant explanations are omitted, and differences will be mainly described.

  FIG. 10 shows a series of operations relating to collective dimming control in the projector 200. The operation of the smartphone 100 is the same as that of the first embodiment. The control unit 201 of the projector 200 executes S201 to 202 and S206 in the same manner as in the first embodiment, and executes the processing in the case where the ID designated in the smartphone 100 does not indicate “ALL”.

  If the control unit 201 determines that the ID designated in S202 indicates "ALL", in S401, whether the setting of the projector 200 is a setting for forcibly performing a light adjustment instruction (also referred to as interlocking setting) It is determined whether or not. The interlock setting for the projector 200 is set in advance by, for example, a light adjustment interlock setting UI as shown in FIG. For example, the user causes the light adjustment interlocking setting setting UI to be displayed, and sets “interlocking” or “not interlocking” via the operation unit 202. When the user selects “link” to enable the forced dimming instruction, the projector 200 is set to forcibly execute the dimming instruction. When the user selects “do not interlock”, the projector 200 is set so as not to forcibly execute the dimming instruction. When the control unit 201 receives a user selection on the light adjustment interlocking setting UI via the operation unit 202, the control unit 201 writes the setting information to the RAM 232.

  It returns to the explanation of S401 in FIG. 10 again. In step S401, the control unit 201 reads out the setting value for interlock setting from the RAM 232, and determines whether the user setting is a setting to forcibly execute (interlocking) a light control instruction based on the read out setting value. Do. If the control unit 201 determines that the user setting is a setting for forcibly performing the light adjustment instruction, the process proceeds to step S205. If not, the process proceeds to step S203.

  In step S205, as in the first embodiment, the control unit 201 controls the light source 206 via the light source control unit 208 based on the read adjustment value for light adjustment, and then ends the series of operations. That is, the control unit 201 executes the light adjustment instruction command regardless of the operation mode of the projector 200. On the other hand, in S203, the mode of its own device is determined as in the first embodiment, and then the light adjustment instruction command is executed according to the operation mode of the projector 200, and the series of operations of this process is ended.

  As described above, when the projector 200 is preset to forcibly execute the light control instruction command, the light control instruction command is executed regardless of the operation mode of the own device. By doing this, when the user desires to preferentially execute the dimming instruction command, even if the projector 200 is operating in the illumination mode, the execution of the dimming instruction command can be prioritized.

(Modification 1-3)
In the above-described embodiment and modification, it is determined whether the projector 200 responds to the dimming instruction command transmitted from the smartphone 100 based on the state of the own device or the like. In the modified example 1-3, in the smartphone 100, the projector to be interlocked with the collective light adjustment control is determined based on the state of each projector 200, and the light adjustment instruction is performed to the determined projector. The configurations of the smartphone 100 and the projector 200 of the present modification are substantially the same as in the first embodiment. For this reason, the same reference numerals are given to the same components, and redundant explanations are omitted, and differences will be mainly described.

  FIG. 12 shows a series of operations of the smartphone 100 and the projector 200 according to the modification 1-3. 12A shows a series of operations related to the smartphone 100, and FIG. 12B shows a series of operations related to the projector 200. As shown in FIG.

  First, as in the first embodiment, the smartphone 100 executes S101 to S102, receives the light control rate by the user operation, and writes the light control rate to the RAM 103.

  In step S503, the control unit 101 transmits, via the communication unit 102, a command (mode acquisition command) for requesting the projector's current operation mode information to each of the projectors 200 establishing the connection. In S504, each projector 200 that has transmitted the mode acquisition command waits for a command (mode notification command) for notifying operation mode information. The control unit 101 determines whether all the mode notification commands have been received through the communication unit 102, and if it is determined that all the mode notification commands have not been received, the process returns to S502 and the mode notification command Continue to stand by. If it is determined that all mode notification commands have been received, the process advances to step S503.

  At 505, the control unit 101 refers to the operation mode information received from each of the projectors 200, and writes the ID information of the projector whose operation mode is the illumination mode to the RAM 103. The reason for selecting only the projector whose operation mode is the illumination mode is to avoid transmitting a dimming instruction to the projector 200 operating as the projection mode.

  In S506, the control unit 101 transmits a light adjustment instruction command to the projector 200 corresponding to the ID stored in S505. When the user performs a touch operation on the button 603 shown in FIG. 6, an interrupt is generated in the control unit 101, and processing by a handler corresponding to the object (button) touched by the user and the coordinates is executed. In the processing by the handler, the control unit 101 reads out the ID and adjustment value of the projector 200 operating as the illumination mode written to the RAM 103, generates control data, and transmits the projector 200 to be transmitted via the communication unit 102. Send to When the control unit 101 transmits the control data to the transmission target projector, the control unit 101 ends the series of processes.

  Next, with reference to FIG. 12B, a series of operations related to the projector 200 will be described. A series of operations shown in FIG. 12B are started from a state in which the projector 200 is operating in the illumination mode or the projection mode and capable of receiving a mode acquisition command from the smartphone 100.

  In S601, the control unit 201 determines whether a mode acquisition command transmitted from the smartphone 100 has been received. For example, when detecting that the mode acquisition command has been received via the communication unit 214 by interrupt or polling, the control unit 201 determines that the mode acquisition command has been received, and advances the process to S602. On the other hand, if it is determined that the mode acquisition command has not been received, the process returns to S601 again to wait for the mode acquisition command. Next, in S602, the control unit 201 reads the operation mode information of the own device held in the RAM 232, and transmits the read operation mode information to the smartphone 100 via the communication unit 214.

  In step S603, the control unit 201 determines whether the light adjustment instruction command transmitted from the smartphone 100 has been received. When detecting that the light adjustment instruction command has been received via the communication unit 214 by interruption or polling, the control unit 201 reads out information related to the light adjustment instruction command into the RAM 232. On the other hand, if it is determined that the dimming instruction command has not been received, the process returns to S603 again to wait for the dimming instruction command. Next, in step S604, the control unit 201 controls the light source 206 via the light source control unit 208 based on the adjustment value for light adjustment stored in the RAM 232. After controlling the light emission of the light source 206, the control unit 201 ends the series of processes. When the projector 200 operates in the projection mode, the series of operations may be ended without performing the process of S603 and subsequent steps.

  As described above, in the modification example 1-3, the smartphone 100 side obtains the operation mode information of the projector in advance, and transmits the control instruction command only to the projector 200 operating in the illumination mode. By doing this, it is possible to prevent the light adjustment control from being unexpectedly performed when the projector 200 operates in the projection mode.

  Note that, as in the example shown in the modification 1-1, the light control instruction is further performed in the state where the video content is being transmitted while taking into consideration the state as to whether the smartphone 100 is transmitting the video content to the projector 200. The command may not be sent. Furthermore, as in the example shown in the modification 1-2, the smartphone 100 may inquire the projector 200 about the forced interlock setting state, and the dimming instruction command may be transmitted to the projector in which the interlock setting is set. .

Second Embodiment
Next, the second embodiment will be described. In the first embodiment, when the projector 200 receives the dimming instruction command from the smartphone 100, the dimming instruction command is discarded if the operation mode of the projector 200 is the projection mode. Then, the other projectors operating in the illumination mode perform light control according to the adjustment value of the light control instruction command.

  On the other hand, when a dimming instruction command is transmitted to a plurality of projectors 200, dimming of projector 200b operating in the illumination mode, which is in the periphery of projector 200a in the projection mode, is performed according to the distance to projector 200a, etc. You may control appropriately. In the present embodiment, the projector 200a operates in the projection mode (discarding the light control instruction), and the brightness of the illumination of the projector 200b operating in the ambient illumination mode corresponds to the positional relationship between the projection plane of the projector and the projector 200a. Adjust accordingly.

  The configuration of the smartphone 100 and the projector 200 according to the present embodiment is substantially the same as that of the first embodiment. For this reason, the same reference numerals are given to the same components, and redundant explanations are omitted, and differences will be mainly described.

(A series of operations related to dimming control)
Although the operation of the smartphone 100 according to the present embodiment is substantially the same as that of the first embodiment, the smartphone 100 sets the dimming rate to “automatic” not specifying a specific value, and each projector (ID is “ It is assumed that a dimming instruction command is transmitted to “ALL”.

  A series of operations relating to light adjustment control in projector 200a operating in the projection mode will be described with reference to FIG. 13A. The state at the start of this series of operations is the same as the operation related to the light adjustment control described above in the first embodiment.

  The control unit 201 executes the processing of S201 to S204, S205, and S206 as in the first embodiment, and executes the processing for the received light adjustment instruction command. In S204, in response to the operation mode of the projector 200a not being the illumination mode (ie, the projection mode), the dimming instruction command is discarded and the projector 200 operates in the projection mode.

  In this case, in step S701, the control unit 201 transmits, to the other projectors (that is, the projector 200b and the projector 200c), a notification (projection mode operation notification) indicating operation in the projection mode. The control unit 201 generates control data (not shown) indicating operation in the projection mode, and transmits the control data to the projector 200 b and the projector 200 c via the communication unit 214.

  Next, with reference to FIG. 13B, a series of operations relating to light adjustment control in the projector 200b operating in the illumination mode will be described. The operation of the projector 200 b is started by the user turning on the projector 200 b via the operation unit 202. In the following description, the operation of the projector 200b will be described, but the same applies to the projector 200c.

  In S711, the control unit 201 controls the diffusion unit of the projection optical system 207 via the optical system control unit 209, and starts projection in the illumination mode. At S712, control unit 201 receives a projection mode operation notification from projector 200a via communication unit 214.

  In S713, the control unit 201 acquires information on the positional relationship between the projector 200b and the projection plane of the projector 200a. Specifically, the light control rate according to the positional relationship between the projector 200b and the projection planes of the other projectors on the network as shown in FIG. 14 is stored in the RAM 232. The dimming rate is stored as numerical data in units of percentage. The control unit 201 reads, from the RAM 232, the light control rate Mba according to the positional relationship between the projector 200b and the projection surface of the projector 200a. The dimming ratio Mba is, for example, numerical data such as 50. The dimming rate according to the positional relationship between the projector 200b stored in the RAM 232 and the projection surface of each other projector on the network is based on the positional relationship preset by the user via the operation unit 202. The control unit 201 calculates and stores it in the RAM 232. Specifically, the user displays a menu for setting the positional relationship between the projector 200b and the projection surface of each of the other projectors on the network as shown in FIG. Set

  In addition, the setting method of the positional relationship by a user is not limited to the setting by the said menu. For example, in the smartphone 100, an application may be executed to set the positional relationship between the projector 200b and other projectors on the network. In this case, after activating the application on the smartphone 100, the user operates the screen of the smartphone 100 with a finger to set the positional relationship. In this case, as shown in FIG. 16, the layout of the room is stored in advance in the application, and the user can set the positional relationship by setting the position of the projector or the projection plane on the screen of the smartphone 100. It is. The positional relationship set by the user on the smartphone 100 is notified to the control unit 201 as numeric data (distance data) via the communication unit 214. The control unit 201 calculates the light control rate based on the notified positional relationship, specifically, the distance data. Specifically, as shown in FIG. 17, the dimming rate for each range of distance data is determined in advance, and the control unit 201 identifies and specifies in which range the notified distance data is located. The dimming rate set in the range is stored in the RAM 232. Note that D1, D2, and D3 are numerical data such as 2, 4, and 6, for example. Note that the method of calculating the light control rate by the control unit 201 is not limited to the above, and for example, the light control rate is uniquely determined for each distance data, and the control unit 201 uniquely determines the light control rate from the distance data. May be calculated.

  In S714, the control unit 201 changes the brightness of the illumination via the light source control unit 208 using the dimming ratio Mba read out in S713. After changing the brightness of the illumination, the control unit 201 ends the series of operations.

  Next, with reference to FIG. 18, an operation in the case where the projector 200 receives the projection mode operation notification from a plurality of projectors will be described. The differences from the description in FIG. 13B will be mainly described. The operations of the projector 200b and the projector 200c are started when the user turns on the projector 200b via the operation unit 202, as in FIG. 13B.

  First, the operation of the projector 200b will be described. The projector 200b performs the processing of S711 to S713. That is, the control unit 201 activates the projector 200b in the illumination mode, and receives the projection mode operation notification from the projector 200a. Then, information on the positional relationship between the projector 200b and the projection plane of the projector 200a which is the target projector is acquired, and the dimming ratio to be applied by the projector 200b is calculated.

  In S801, after the start of projection, the control unit 201 receives a projection mode operation notification from the projector 200a, and determines whether or not the change in the brightness of the illumination is being performed. For example, the control unit 201 receives the projection mode operation notification, and sets a flag indicating that the change is performed in the RAM 232 when the change in the brightness of the illumination is performed. The control unit 201 can receive the projection mode operation notification by checking the above flag of the RAM 232, and can determine whether the change of the brightness of the illumination has been performed. The control unit 201 advances the process to step S802 if the brightness of the illumination has been changed, and advances the process to step S714 if the brightness of the illumination has not been changed.

  In step S802, the control unit 201 determines that the positional relationship between the projector 200b and the projection surface of the target projector (projector 200a) is closer than the positional relationship between the projector 200b and the projection surface of the projector whose illumination brightness has finally been changed. Determine if it is. Specifically, the control unit 201 calculates the distance data of the positional relationship between the projector 200b acquired in S713 and the projection surface of the projector 200a, and the projection surface of the projector which has finally performed the change of the brightness of the illumination with the projector 200b. Compare the distance data of the relative position of. If the distance data between the projector 200b acquired in S713 and the projection plane of the projector 200a is smaller as a result of comparison, the control unit 201 proceeds to S714, otherwise proceeds to 803. In S714, the control unit 201 changes the brightness of the illumination based on the calculated light control rate.

  After that, in step S803, the control unit 201 receives control data of an instruction to change the illumination mode to the projection mode from the user via the operation unit 202 or the smartphone 100 via the communication unit 214. Do.

  In S804, the control unit 201 switches the projection in the projection mode to the projection in the illumination mode by the projection optical system 207 via the optical system control unit 209. Furthermore, in step S805, the control unit 201 transmits a projection mode operation notification via the communication unit 214 to another projector (for example, the projector 200c) projecting in the illumination mode on the network. That is, the control unit 201 notifies another projector that the projector 200b has changed the mode from the illumination mode to the projection mode. After transmitting the projection mode operation notification, the control unit 201 ends the series of operations.

  Next, the operation of the projector 200c will be described. Similar to the operation of the projector 200b described above, the projector 200c executes the first operation (S711 to S714) of receiving the projection mode operation notification.

  Then, the control unit 201 of the projector 200c further executes the second operation of receiving the projection mode operation notification in the projector 200c. The control unit 201 receives the projection mode operation notification in S712. In this case, the control unit 201 receives the projection mode operation notification transmitted from the projector 200b. The control unit 201 executes the above-described processing of S713, S801, S802, and S714 performed on the projector 200a in response to the projection mode operation notification from the projector 200b. That is, it is determined whether the positional relationship between the projector 200c and the projection surface of the target projector (projector 200b) is closer than the positional relationship between the projector 200c and the projection surface of the projector whose illumination brightness was last changed. Make the illumination brightness darker. When the control unit 201 performs the process of S802 or S714, the control unit 201 ends the series of operations.

  As described above, in the present embodiment, the first projector notified of the projection mode operation receives the notification of the first projector according to the positional relationship between the projection surface of the projector operating in the projection mode and the first projector. I adjusted the brightness of the light. In this way, when performing the light adjustment control of the illumination, the brightness of the illumination of the surrounding projector can be adjusted to a brightness appropriate for viewing by the projection of the projector.

(Modification 2-1)
In the modification 2-1, an example will be described in which the projector operating in the projection mode adjusts the brightness of the illumination of the surrounding projectors in accordance with the positional relationship between the projection surface of the own projector and the surrounding projectors. The configuration of the projector and the operation of the light adjustment control according to the modification 2-1 are substantially the same as the configuration and the operation of the light adjustment control in the second embodiment, and thus the description will be omitted using the same reference numerals. , I will focus on the differences.

  First, with reference to FIG. 19A, a series of operations of the projector 200a according to this modification will be described. Also in this modification, the projector 200a operates in the projection mode, and the projector 200b and the projector 200c operate in the illumination mode as projectors around the projector 200a.

  The control unit 201 of the projector 200a executes the processing of S201 to S206 in the same manner as the above-described embodiment. In step S204, the control unit 201 discards the light adjustment control command and operates in the projection mode. Then, in step S901, the control unit 201 acquires information on the positional relationship between the surrounding projectors (the projector 200b and the projector 200c) and the projection surface of the projector 200a, and calculates a light control rate based on the positional relationship. For example, in the RAM 232, the light control rates according to the positional relationship between the projection surface of the projector 200a and the other projectors on the network shown in FIG. 20 are stored. The dimming rate is a unit of percentage, and is stored as numerical data such as 50, for example. The control unit 201 reads, from the RAM 232, the light control rates Mba and Mca according to the positional relationship between the target projector and the projection surface of the projector 200a. Note that the light control rate according to the positional relationship between the projection surface of the projector 200a and each of the other projectors is calculated in advance by the control unit 201 based on the positional relationship set by the user via the operation unit 202. , And stored in the RAM 232.

  For example, the projector 200a displays a menu for setting the positional relationship between the projection surface of the projector 200a shown in FIG. 21 and the other projectors on the network on the projection surface, and the user inputs via the operation unit 202 Set the item distance, etc. The method of setting the positional relationship by the user is not limited to the setting via the menu. For example, when an application capable of setting the positional relationship between the projector 200a and each of the other projectors on the network is installed in the smartphone 100, the setting may be performed using the application. In this case, after activating the application on the smartphone 100, the user sets the positional relationship of the projector by operating the screen with a finger or the like. In this case, as shown in FIG. 16, the layout of the room is stored in advance in the application, and the position of the projector or the projection plane of the projector can be moved and set on the screen of the smartphone 100. The positional relationship set by the user on the smartphone 100 is notified as numerical data (distance data) to the control unit 201 of the projector 200 a via the communication unit 214. The control unit 201 calculates the dimming rate based on the notified positional relationship (specifically, distance data). The control unit 201 refers to, for example, the dimming rate assigned to each range of distance data shown in FIG. 11 to determine the dimming rate corresponding to the range to which the notified distance data belongs. The control unit 201 stores the determined light control rate in the RAM 232. Of course, the method of calculating the dimming rate is not limited to the above method, and for example, the dimming rate may be determined uniquely for each of the distance data.

  In step S902, the control unit 201 sends a brightness change request of the illumination including the calculated light control rate to the surrounding projectors (for example, the projector 200b and the projector 200c) on the network operating in the illumination mode via the communication unit 214. To send. In addition, since the projector 200a calculates separate dimming rates to the projector 200b and the projector 200c by the above-described method, the projector 200a transmits a brightness change request of illumination including different dimming rates to the respective projectors.

  Next, with reference to FIG. 19B, the operation of the projectors (projector 200b and projector 200c) around projector 200a will be described. First, the control unit 201 of the projector 200b performs projection in the illumination mode as in S711 of the second embodiment described above. Next, in step S911, the control unit 201 receives, via the communication unit 214, the brightness change request of the illumination including the dimming rate, which is transmitted from the projector 200a in step S902.

  In S912, the control unit 201 extracts data indicating the light control rate for the projector 200b from the brightness change request of the illumination, and the light source 206 becomes the light control rate via the light source control unit 208. , Change the brightness of the lighting.

  The projector 200c operates in the same manner as the projector 200b. That is, data indicating the light control rate for the projector 200c is extracted from the brightness change request of the light, and the light brightness of the light source 206 is changed via the light source control unit 208 so that the light control rate becomes the light control rate. Do.

  As described above, in the modification 2-1, the first projector operating in the projection mode adjusts the brightness of the illumination of the surrounding projectors according to the positional relationship with the surrounding projectors. By doing this, the projectors surrounding the light control of the illumination do not need the calculation for calculating the light control rate, and therefore, appropriate brightness adjustment is realized with lighter calculation as the whole system. It will be possible to

(Modification 2-2)
In the above-described embodiment, an example has been described in which the positional relationship between the projection surface of the projector 200a operating in the projection mode and the surrounding projectors is set based on the user's operation on the UI shown in FIGS. However, the positional relationship between the projection plane of the projector 200a operating in the projection mode and the surrounding projectors may be acquired based on the data acquired by the imaging unit.

  For example, the process of S713 described above may be changed as follows. Specifically, at S713, the control unit 201 of the projector 200b captures an image of the periphery of the projector 200b via the imaging unit 224. Then, the captured image is subjected to image analysis by the image processing unit 216, and a projection plane of the projector 200a (for example, positions of four corners, positions of centers, etc.) is specified.

  Thereafter, the control unit 201 measures the distance of the specified position on the projection plane of the projector 200 a specified via the imaging unit 224. Thus, the control unit 201 calculates the distance between the projector 200 b and the projection plane of the projector 200 a. The procedure for obtaining the dimming rate from the calculated distance may be performed in the same manner as in the second embodiment described above. Similarly, the control unit 201 of the projector 200c can also calculate the distance between the projector 200c and the projection plane of the projector 200a based on the captured image, and obtain the light control rate for the projector 200c.

  Further, in the above-described modified example 2-1, an example in which the positional relationship between the projection plane of the projector 200a operating in the projection mode and the surrounding projectors is set in the projector 200a has been described. However, the positional relationship between the projection plane of the projector 200a operating in the projection mode and the surrounding projectors may be acquired based on data acquired by the imaging unit of the projector 200a.

  For example, in the above-described S901, the control unit 201 of the projector 200a captures an image of the periphery of the projector 200a via the imaging unit 224. Then, the captured image is subjected to image analysis by the image processing unit 216, whereby the projection plane (for example, the positions of the four corners and the positions of the centers) of the projector 200a and the positions of the projector 200b and the projector 200c are specified. After that, the control unit 201 measures the distance to the specified position on the projection plane of the projector 200 a and the positions of the projector 200 b and the projector 200 c via the imaging unit 224. Thus, the distance between the projector 200b and the projection surface of the projector 200a and the distance between the projector 200c and the projection surface of the projector 200a are calculated. The procedure for calculating each dimming rate from each calculated distance may be performed in the same manner as in the second embodiment described above.

  In this way, it is possible to acquire the projection plane of the projector operating in the projection mode and the positional relationship of the surrounding projector without the user's input, and the setting of the light control of the projector can be made simpler and easier. Becomes possible.

(Other embodiments)
The present invention supplies a program that implements one or more functions of the above-described embodiments to a system or apparatus via a network or storage medium, and one or more processors in a computer of the system or apparatus read and execute the program. Can also be realized. It can also be implemented by a circuit (eg, an ASIC) that implements one or more functions.

DESCRIPTION OF SYMBOLS 101 ... Control part, 102 ... Communications part, 105 ... Operation part, 106 ... Display part, 201 ... Control part, 206 ... Light source, 207 ... Projection optical system, 209 ... Optical system control part, 214 ... Communications part

Claims (19)

A projection unit operable to switch between projection of a light to be emitted onto a predetermined projection plane and projection of illumination light by light to be emitted;
Communication means for receiving, from the communication device, a first dimming instruction for adjusting a light amount of the light to be emitted by interlocking a plurality of projection devices;
Control means for controlling the light amount of the light to be emitted by the projection means according to the received first light control instruction;
The control means determines whether or not to adjust the light amount of the light to be emitted according to the first dimming instruction based on the operation of the projection means when the first dimming instruction is received. A projector characterized in that it controls.   The control unit, when receiving the first dimming instruction, when the projection unit is performing the projection on the predetermined projection plane, the light to be emitted according to the first dimming instruction The projection apparatus according to claim 1, wherein the light amount of the light source is not adjusted.   The control unit is configured to, when the communication unit further receives a second dimming instruction for adjusting the light amount of the light to be emitted only for the projection device, the projection unit is configured to perform the predetermined projection surface 3. The projection apparatus according to claim 2, wherein the light amount of the light to be emitted is adjusted according to the second light control instruction even when the light is projected onto the light.   The control means, when receiving the first dimming instruction, the projection means is a video content of a predetermined format, even when the projection means is projecting on the predetermined projection plane 3. The projection apparatus according to claim 2, wherein the amount of light to be emitted is adjusted in accordance with the first light control instruction, when not projecting. The communication means is further configured to receive video content for projection onto the predetermined projection plane from a predetermined external device.
When the control means receives the first light control instruction, the communication means receives the predetermined external device even if the projection means is projecting on the predetermined projection plane. The projection apparatus according to claim 2, wherein when the video content is not received, the light amount of the light to be emitted is adjusted according to the first light control instruction. The communication means is further capable of establishing a connection with a predetermined external device to obtain video content for projection onto the predetermined projection plane,
The control means establishes the connection with the predetermined external device even when the projection is performed on the predetermined projection plane when the first dimming instruction is received. 3. The projection apparatus according to claim 2, wherein the light amount of the light to be emitted is adjusted in accordance with the first light control instruction, when not. The apparatus further comprises setting means configured to adjust the light quantity of the light to be emitted always in accordance with the first dimming instruction when the first dimming instruction is received,
The control means always adjusts the light amount of the light to be emitted according to the first light adjustment instruction when the first light adjustment instruction is received when the setting means is effective. The projection apparatus according to any one of claims 2 to 5, characterized in that. The first light control instruction includes an adjustment value set by a user operation on the light amount of the light to be emitted,
The projection apparatus according to any one of claims 1 to 7, wherein the control unit adjusts the amount of light to be emitted based on the adjustment value.   The projector according to claim 1, wherein the projection unit projects the light to be emitted onto the predetermined projection plane without diffusing the light, and diffuses the light to be emitted to project the illumination light. The projection device according to any one of 8. The control means, when receiving the first light adjustment instruction, when the projection means performs the projection on the predetermined projection plane, the communication means displays another notification indicating the operation of the projection means. Send to device,
The notification indicating the operation of the projection means is transmitted to adjust the light amount of the illumination light of the other projection device according to the positional relationship between the other projection device and the predetermined projection plane. The projection apparatus according to any one of claims 1 to 9, wherein:   The notification indicating the operation of the projection means is transmitted to adjust the illumination light of the other projection device to be darker as the distance between the other projection device and the predetermined projection plane is closer. 11. A projection device according to claim 10. The control means calculates a value for adjusting the light quantity of the illumination light of the other projection device according to the positional relationship between the other projection device and the predetermined projection plane,
The projection apparatus according to claim 10, wherein the communication unit transmits a notification indicating the operation of the projection unit including the value to the other projection apparatus. It further comprises imaging means for imaging the other projection device and the predetermined projection plane,
The projection apparatus according to claim 12, wherein the positional relationship between the other projection apparatus and the predetermined projection plane is determined using the result of the imaging, and the value is calculated. A communication device for communicating with a plurality of projection devices having projection means operable to switchably perform projection of a light to be emitted onto a predetermined projection plane and projection of illumination light by light to be emitted,
Communication means for communicating with each of the plurality of projection devices;
Control means for controlling the communication means to transmit, to the plurality of projection devices, a light adjustment instruction for adjusting the light amount of the light to be emitted by interlocking the plurality of projection devices;
The control means controls whether to transmit the dimming instruction to each of the plurality of projection devices based on the operation of the projection means of each of the plurality of projection devices. apparatus. The image processing apparatus further comprises acquisition means for acquiring the light quantity of the light to be emitted which is set to the plurality of projection devices,
The control means controls the communication means so that the light adjustment instruction including the light amount of the light to be emitted acquired by the acquisition means is transmitted to a projection device in which the projection means projects the illumination light. The communication device according to claim 14, characterized in that: A control method of a projection apparatus, comprising: projection means operable to switchably perform a projection on a predetermined projection plane by light to be emitted and a projection of illumination light by light to be emitted,
A communication step of receiving, from the communication device, a first light adjustment instruction for adjusting a light amount of the light to be emitted by interlocking a plurality of projection devices with each other;
And a control step of controlling the light amount of the light to be emitted by the projection unit according to the received first light control instruction.
In the control step, when the first light adjustment instruction is received, whether to adjust the light amount of the light to be emitted according to the first light adjustment instruction based on the operation of the projection unit And controlling the projection apparatus. A control method of a communication device for communicating with a plurality of projection devices having projection means operable to switchably perform projection of a predetermined projection plane by light to be emitted and projection of illumination light by light to be emitted, the communication The device comprises communication means for communicating with each of the plurality of projection devices;
The control method is
Controlling the communication unit to transmit a light adjustment instruction for adjusting the light amount of the light to be emitted by interlocking the plurality of projection devices to the plurality of projection devices;
The control step controls whether or not to transmit the dimming instruction to each of the plurality of projection devices based on the operation of the projection unit of each of the plurality of projection devices. Device control method.   The program for functioning a computer as each means of the projection apparatus of any one of Claims 1-13.   The program for functioning a computer as each means of the communication apparatus of Claim 14 or 15.

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