Projection system control method and projection system

Abstract

To provide a projection system control method and a projection system that are convenient for a user.SOLUTION: In a control method for a projection system including a projector including a projection lamp that projects a projection image onto a projection surface, and a personal computer capable of wirelessly communicating with the projector, the state of the projection lamp is switched from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected in response to the establishment of wireless communication between the personal computer and the projector.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a control method for a projection system and a projection system. [Background technology]

[0002] Patent document 1 discloses a control method for a projector device that has multiple independent CPUs and maintains a standby state by turning off the power supply to the main CPU and turning on the power supply to the network CPU to save power. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-164833 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the method described in Patent Document 1, although the power supply to the network CPU is ON, the projection of the image, that is, the ON / OFF of the projection lamp cannot be controlled. In other words, there is a problem that the relationship between the communication function and the projection lamp is not taken into consideration. [Means for solving the problem]

[0005] A control method for a projection system includes a first projection device including a first projection mechanism that projects a projection image onto a projection target, and a terminal capable of wirelessly communicating with the first projection device, and in response to establishing wireless communication between the terminal and the first projection device, the state of the first projection mechanism is switched from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected.

[0006] The projection system includes a first projection device including a first projection mechanism that projects a projection image onto a projection target, and a terminal capable of wirelessly communicating with the first projection device, and in response to establishing wireless communication between the terminal and the first projection device, the state of the first projection mechanism is switched from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing the configuration of a projection system according to a first embodiment. [Diagram 2] FIG. 2 is a block diagram showing the electrical configuration of the projection system. [Diagram 3] 11 is a flowchart showing a control method of the projection system. [Figure 4] 11 is a flowchart showing a control method of the projection system. [Diagram 5] FIG. 11 is a schematic diagram showing the configuration of a projection system according to a second embodiment. [Figure 6] 11 is a flowchart showing a control method of the projection system. [Figure 7] 11 is a flowchart showing a control method of the projection system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] First, the configuration of a projection system 1000 according to the first embodiment will be described with reference to FIG.

[0009] 1, the projection system 1000 includes a projector 100A as a first projection device, and a personal computer 200 as a terminal capable of wirelessly communicating with the projector 100A. Note that the terminal is not limited to the personal computer 200, and may be a smartphone or a tablet terminal.

[0010] The projector 100A includes a projection lamp 400A as a first projection mechanism for projecting image information input from the outside onto a projection surface 300 as a projection target. The projection lamp 400A is, for example, a mercury lamp. The first projection mechanism is not particularly limited as long as it functions as a light source for projecting image information. A projection image 500 based on the image information is displayed on the projection surface 300. Examples of the projection surface 300 include a screen and a whiteboard.

[0011] An example of the projection image 500 is a content image 510 based on content data supplied from the personal computer 200 to the projector 100A. In response to establishing wireless communication with the personal computer 200, the projection system 1000 of this embodiment switches the state of the projection lamp 400A of the projector 100A from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected.

[0012] The projector 100A is provided with an indicator 101A, which is one of the first notification mechanisms, and a speaker 102A, which is one of the first notification mechanisms.

[0013] Next, the electrical configuration of the projection system 1000 will be described with reference to FIG.

[0014] As shown in FIG. 2, the projection system 1000 includes a projector 100A (100) and a personal computer 200.

[0015] The projector 100A includes a control unit 110, a communication unit 120, a detection unit 130, a determination unit 140, a notification unit 150, a storage unit 160, a projection unit 400, a processing unit 170, and an operation unit 180.

[0016] The control unit 110 is configured to include one or more processors, and operates according to a control program stored in the storage unit 160 to comprehensively control the operation of the projector 100A.

[0017] The communication unit 120 transmits and receives signals to and from the communication unit 210 of the personal computer 200. The communication unit 120 is, for example, a short-distance wireless communication such as Bluetooth (registered trademark). Note that the communication is not limited to short-distance wireless communication, and may be performed via a network such as a LAN (Local Area Network). In other words, the communication may be wireless or wired communication. Furthermore, the communication unit 120 may transmit and receive signals to and from a plurality of projectors 100 including the projector 100A.

[0018] The detection unit 130 detects whether or not communication between the communication unit 120 of the projector 100A and the communication unit 210 of the personal computer 200 is possible.

[0019] The determining unit 140 determines, based on the communication state detected by the detecting unit 130, whether communication has become possible or has been cut off.

[0020] As described above, the notification unit 150 is the indicator 101A and the speaker 102A, and when the determination unit 140 determines that communication is possible, the notification unit 150 causes the indicator 101A to light up or produces a sound from the speaker 102A.

[0021] The storage unit 160 is configured with memories such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The RAM is used for temporary storage of various data, and the ROM stores control programs and control data for controlling the operation of the projector 100A.

[0022] Although not shown, the projection unit 400 is configured to include a light source, a liquid crystal light valve as a light modulation device, a projection optical system, a light valve driving unit, etc. The projection unit 400 modulates light emitted from the light source with the liquid crystal light valve to form image light, and projects this image light from the projection optical system including at least one of a lens and a mirror to display a projection image 500 on the projection surface 300.

[0023] The processing unit 170 executes each process based on instructions from the control unit 110.

[0024] Operation unit 180 is an operation panel including a plurality of physical buttons or a touch panel. When operation unit 180 is an operation panel, the operation panel includes a power button for switching the power of projector 100A on or off.

[0025] The personal computer 200 includes a communication unit 210 , a control unit 220 , a display unit 230 , and a selection unit 240 .

[0026] As described above, the communication unit 210 transmits and receives signals to and from the communication unit 120 of the projector 100A. The communication unit 210 is, for example, a short-distance wireless communication unit such as Bluetooth (registered trademark). Note that the communication is not limited to short-distance wireless communication, and communication may be performed via a network such as a LAN (Local Area Network).

[0027] The display unit 230 includes a display panel such as an LCD (liquid crystal display), and displays the communication status with the projector 100 A. Furthermore, when there are multiple projectors 100, the display unit 230 displays the communication status with the multiple projectors 100.

[0028] For example, when multiple projectors 100 are installed, the selection unit 240 selects which projector 100's projection unit 400 is to be turned ON. Also, the selection unit 240 selects which projector 100 is to be made communicable with, and which projector 100 is to be disconnected from communication.

[0029] Next, an example of a control method for the projection system 1000 of the first embodiment will be described with reference to FIG.

[0030] As shown in FIG. 3, first, in step S11, communication between the personal computer 200 and the projector 100A is cut off, and the projection lamp 400A is in an OFF state.

[0031] Next, in step S12, it is determined whether or not wireless communication has been established between the personal computer 200 and the projector 100A. Specifically, the control unit 110 causes the determination unit 140 to determine whether or not the personal computer 200 and the projector 100A are in a state in which they can communicate with each other, based on the detection result of the detection unit 130. If communication has been established (step S12: YES), the process proceeds to step S13. If communication has not been established (step S12: NO), the process proceeds to step S11.

[0032] Next, in step S13, an LED (Light Emitting Diode) lamp, that is, indicator 101A is turned on. Specifically, control unit 110 notifies notification unit 150 that personal computer 200 and projector 100A are in a state where communication is possible, that is, it turns on indicator 101A. By checking this indicator 101A, it is possible to visually determine the communication state between personal computer 200 and projector 100A. Note that the communication state is not limited to being checked by indicator 101A, and it is also possible to inform the user that communication is possible by making a sound from speaker 102A.

[0033] Next, in step S14, the projection lamp 400A is turned on. Specifically, the control unit 110 switches the state of the projection unit 400 from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected. That is, the projection lamp 400A is turned on to project the projection image 500 onto the projection surface 300.

[0034] Next, in step S15, it is determined whether or not the wireless communication has been disconnected. Specifically, the control unit 110 causes the determination unit 140 to determine whether or not the communication between the personal computer 200 and the projector 100A has been disconnected based on the detection result of the detection unit 130. If the communication has been disconnected (step S15: YES), the process proceeds to step S16. If the communication remains established (step S15: NO), the process proceeds to step S14, and the projection lamp 400A continues to be ON.

[0035] Next, in step S16, the LED lamp, i.e., the indicator 101A, is turned off. Specifically, the control unit 110 notifies the notification unit 150 that the personal computer 200 and the projector 100A are in a disconnected state, i.e., turns off the indicator 101A. By checking this indicator 101A, it is possible to visually determine that the communication between the personal computer 200 and the projector 100A has been disconnected.

[0036] Next, in step S17, the projection lamp 400A is turned off. Specifically, the control unit 110 switches the projection unit 400 from an active state in which the projection image 500 can be projected to a stopped state in which projection is not possible. That is, the projection lamp 400A is turned off to stop the projection of the projection image 500. This ends the flow of the control method for the projection system 1000.

[0037] In this way, by establishing wireless communication between the personal computer 200 and the projector 100A, the state of the projection lamp 400A is switched from a stopped state to an activated state, so that the projection lamp 400A can be activated automatically or semi-automatically. This can omit the work of the user activating the projection lamp 400A, which must be performed separately in addition to establishing wireless communication between the personal computer 200 and the projector 100A, and can improve user convenience. For example, the process of activating the projection lamp 400A by operating the power button of the projector 100A is omitted. In other words, the user can activate the projection lamp 400A only by operating the personal computer 200, without operating the power button of the projector 100A.

[0038] In this way, the content image 510 is also automatically or semi-automatically projected, which further reduces the effort required for user operations. In other words, the projection lamp 400A can be automatically turned on, and the content image 510 can also be automatically projected.

[0039] Next, another example of the control method for the projection system 1000 of the first embodiment will be described with reference to Fig. 4. In this example, the part where the user selects ON / OFF of the projection lamp 400A is different from the above example.

[0040] Steps S21 to S23 shown in FIG. 4 are similar to steps S11 to S13 shown in FIG.

[0041] Next, in step S24, the user determines whether to turn on the projection lamp 400A. Specifically, the control unit 110 transmits a signal to the communication unit 210 of the personal computer 200 via the communication unit 120, notifying the communication unit 210 of the personal computer 200 that communication between the personal computer 200 and the projector 100A has been established. The control unit 220 of the personal computer 200 receives the signal from the communication unit 210 and causes the display unit 230 to display a message asking whether to turn on the projection lamp 400A. An example of the message is a user interface (UI) image.

[0042] If it is determined that the projection lamp 400A should be turned ON (step S24: YES), the user selects a message to turn ON the projection lamp 400A (selection operation). As a result, the control unit 220 transmits a signal notifying the communication unit 120 of the projector 100A that the projection lamp 400A will be turned ON via the communication unit 210. On the other hand, if it is determined that the projection lamp 400A should not be turned ON (step S24: NO), the user selects a message not to turn ON the projection lamp 400A, and the process proceeds to step S21.

[0043] The method by which the user can select whether or not to turn on the projection lamp 400A is not limited to displaying a message on the display unit 230 of the personal computer 200. For example, the user may select by displaying a message on an OSD (On Screen Display) image projected from the projector 100A.

[0044] Next, in step S25, the projection lamp 400A is turned on. The specific method is the same as the example described above.

[0045] Next, in step S26, it is determined whether or not wireless communication has been established. Specifically, the control unit 110 causes the determination unit 140 to determine whether or not communication has been established between the personal computer 200 and the projector 100A based on the detection result of the detection unit 130. If communication has been disconnected (step S26: NO), the process proceeds to step S27. If communication remains established (step S26: YES), the process proceeds to step S25, and the projection lamp 400A continues to be ON.

[0046] Next, in step S27, the user determines whether to turn off the projection lamp 400A. Specifically, the control unit 110 transmits a signal to the communication unit 210 of the personal computer 200 via the communication unit 120, notifying the communication unit 210 of the personal computer 200 that communication between the personal computer 200 and the projector 100A has been disconnected. The control unit 220 of the personal computer 200 receives the signal from the communication unit 210 and causes the display unit 230 to display a message asking whether to turn off the projection lamp 400A. As an example of the message, as described above, a user interface (UI) image can be given.

[0047] If it is determined that the projection lamp 400A is to be turned off (step S27: YES), the user selects a message to turn off the projection lamp 400A. This causes the control unit 220 to transmit a signal notifying the communication unit 120 of the projector 100A to turn off the projection lamp 400A via the communication unit 210. On the other hand, if it is determined that the projection lamp 400A is not to be turned off (step S27: NO), the user selects a message not to turn off the projection lamp 400A, and the process proceeds to step S25.

[0048] Next, in step S28, the LED lamp, i.e., the indicator 101A, is turned off. The specific method is the same as the example described above. Note that the method is not limited to turning off the indicator 101A in step S28, and the indicator 101A may be turned off before step S26 when wireless communication is not established.

[0049] Next, in step S29, the projection lamp 400A is turned off. The specific method is the same as the example described above. With the above, the flow of the control method for the projection system 1000 is completed.

[0050] In this way, since the user can select whether to turn on or off the projection lamp 400A, it is possible to improve convenience for users who do not like to switch the state of the projection lamp 400A from an activated state to a stopped state by, for example, disconnecting the wireless communication between the personal computer 200 and the projector 100A. In other words, the user can decide whether or not to automatically turn off the projection lamp 400A.

[0051] Also, the user can start the projection lamp 400A by operating the personal computer 200, without operating the power button of the projector 100A. In other words, "switching the state of the projection lamp 400A from a stopped state to an activated state in response to the establishment of wireless communication between the personal computer 200 and the projector 100A" is not limited to switching the projection lamp 400A ON immediately in response to the establishment of wireless communication. If the operation of the power button to turn on the power of the projection lamp 400A can be omitted, it is not necessary to have a configuration in which the projection lamp 400A is switched ON immediately in response to the establishment of wireless communication.

[0052] As described above, the control method for the projection system 1000 of the first embodiment is a control method for the projection system 1000 that includes a projector 100A including a projection lamp 400A that projects a projection image 500 onto a projection surface 300, and a personal computer 200 that can communicate wirelessly with the projector 100A, and in response to establishing wireless communication between the personal computer 200 and the projector 100A, the state of the projection lamp 400A is switched from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected.

[0053] According to this method, by establishing wireless communication between the personal computer 200 and the projector 100A, the state of the projection lamp 400A is switched from a stopped state to an activated state, so that it is possible to automatically activate the projection lamp 400A. This not only establishes wireless communication between the personal computer 200 and the projector 100A, but also omits the separate task of the user activating the projection lamp 400A, thereby improving user convenience.

[0054] Furthermore, in the control method for the projection system 1000 of the first embodiment, it is preferable to switch the state of the projection lamp 400A from an activated state to a stopped state in response to disconnecting wireless communication between the personal computer 200 and the projector 100A. According to this method, the state of the projection lamp 400A is automatically switched from an activated state to a stopped state by disconnecting wireless communication, which improves convenience for the user and contributes to power saving.

[0055] In addition, the control method of the projection system 1000 of the first embodiment preferably displays a user interface image for selecting whether or not to switch the state of the projection lamp 400A from an activated state to a stopped state on at least one of the display unit 230 of the personal computer 200 and the image projected from the projector 100A in response to disconnection of wireless communication between the personal computer 200 and the projector 100A. The image projected from the projector 100A is, for example, an OSD image. According to this method, the user can select the state of the projection lamp 400A, so that it is possible to improve convenience for users who do not prefer to switch the state of the projection lamp 400A from an activated state to a stopped state by disconnecting the wireless communication between the personal computer 200 and the projector 100A. In other words, the user can decide whether or not to automatically turn off the projection lamp 400A.

[0056] Moreover, in the control method of the projection system 1000 of the first embodiment, it is preferable that after the state of the projection lamp 400A is switched from a stopped state to an activated state, the content image 510 based on the content data supplied from the personal computer 200 to the projector 100A is projected from the projector 100A as the projection image 500. According to this method, the content image 510 is automatically projected, so that the user's operation can be further reduced. In other words, the projection lamp 400A can be automatically turned on and the content image 510 can be automatically projected.

[0057] Furthermore, the projection system 1000 of the first embodiment includes a projector 100A including a projection lamp 400A that projects a projection image 500 onto a projection surface 300, and a personal computer 200 that can communicate wirelessly with the projector 100A, and in response to establishing wireless communication between the personal computer 200 and the projector 100A, the state of the projection lamp 400A is switched from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected.

[0058] According to this configuration, by establishing wireless communication between the personal computer 200 and the projector 100A, the state of the projection lamp 400A is switched from a stopped state to an activated state, so that it is possible to automatically activate the projection lamp 400A. This not only establishes wireless communication between the personal computer 200 and the projector 100A, but also omits the separate task of the user activating the projection lamp 400A, thereby improving user convenience.

[0059] Next, a projection system 2000 according to a second embodiment will be described with reference to FIG.

[0060] A projection system 2000 of the second embodiment includes multiple projectors 100A, 100B, and differs from the projection system 1000 of the first embodiment in that one of the projectors 100A, 100B to be used is selected from among them. The other configurations are generally similar. Therefore, in the second embodiment, the parts that differ from the first embodiment will be described in detail, and descriptions of other overlapping parts will be omitted as appropriate.

[0061] As shown in FIG. 5, the projection system 2000 of the second embodiment has a first projector 100A as a first projection device, a second projector 100B as a second projection device, and a personal computer 200 capable of wireless communication with the first projector 100A and the second projector 100B.

[0062] The first projector 100A includes a first projection lamp 400A serving as a first projection mechanism for projecting a projection image 500 or the like onto the projection surface 300. The second projector 100B includes a second projection lamp 400B serving as a second projection mechanism for projecting a projection image 500 or the like onto the projection surface 300.

[0063] In the second embodiment, the projection system 2000 switches the state of the projection lamps 400A, 400B of the projectors 100A, 100B from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected in response to establishing wireless communication between the first projector 100A or the second projector 100B and the personal computer 200.

[0064] Next, an example of a control method for the projection system 2000 of the second embodiment will be described with reference to FIG.

[0065] As shown in Fig. 6, first, in step S31, it is determined whether or not communication has been established between the personal computer 200 and the first projector (1st PJ) 100A. Specifically, the control unit 110 causes the determination unit 140 to determine whether or not communication is possible between the personal computer 200 and the first projector 100A, based on the detection result of the detection unit 130. If communication has been established (step S31: YES), the process proceeds to step S32. If communication has not been established (step S31: NO), the process proceeds to step S35.

[0066] Next, in step S32, the LED lamp of the first projector 100A, that is, the first indicator 101A serving as the first notification mechanism, is turned on. Specifically, the control unit 110 notifies the notification unit 150 that the personal computer 200 and the first projector 100A are in a state in which communication is possible, that is, the control unit 110 turns on the first indicator 101A.

[0067] Next, in step S33, the user determines whether to turn on the first projection lamp 400A. Specifically, the control unit 110 transmits a signal to the communication unit 210 of the personal computer 200 via the communication unit 120, notifying the communication unit 210 of the personal computer 200 that communication between the personal computer 200 and the first projector 100A has been established. The control unit 220 of the personal computer 200 receives the signal from the communication unit 210 and causes the display unit 230 to display a message asking whether to turn on the first projection lamp 400A.

[0068] Next, in step S34, the first projection lamp 400A is turned ON. Specifically, the control unit 110 switches the projection unit 400 from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected. That is, the first projection lamp 400A is turned ON to project the projection image 500 onto the projection surface 300.

[0069] Next, in step S35, it is determined whether or not communication has been established between the personal computer 200 and the second projector (2nd PJ) 100B. Specifically, the control unit 110 causes the determination unit 140 to determine whether or not communication is possible between the personal computer 200 and the second projector 100B based on the detection result of the detection unit 130. If communication has been established (step S35: YES), the process proceeds to step S36. If communication has not been established (step S35: NO), the process proceeds to step S31.

[0070] Next, in step S36, the LED lamp of the second projector 100B, that is, the second indicator 101B serving as the second notification mechanism, is turned on. Specifically, the control unit 110 notifies the notification unit 150 that the personal computer 200 and the second projector 100B are in a state in which communication is possible, that is, the control unit 110 turns on the second indicator 101B.

[0071] In this way, the first indicator 101A of the first projector 100A or the second indicator 101B of the second projector 100B is turned on, so that it is possible to visually confirm which projectors 100A and 100B have established wireless communication with the personal computer 200.

[0072] Next, in step S37, the user determines whether to turn on the second projection lamp 400B. Specifically, the control unit 110 transmits a signal to the communication unit 210 of the personal computer 200 via the communication unit 120, notifying the communication unit 210 of the personal computer 200 that communication between the personal computer 200 and the second projector 100B has been established. The control unit 220 of the personal computer 200 receives the signal from the communication unit 210 and causes the display unit 230 to display a message asking whether to turn on the second projection lamp 400B.

[0073] Next, in step S38, the second projection lamp 400B is turned ON. Specifically, the control unit 110 switches the projection unit 400 from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected. That is, the second projection lamp 400B is turned ON to project the projection image 500 onto the projection surface 300.

[0074] In this way, by observing the change in the notification state of the first indicator 101A, the user can visually identify, for example, the first projector 100A that is about to switch the state of the first projection lamp 400A from a stopped state to an activated state. This makes it easier for the user to make a final decision on whether or not to automatically turn on the first projection lamp 400A in the first projector 100A.

[0075] The change in the notification state of the first indicator 101A (change from the first notification state to the second notification state) may be different from the notification state of the second indicator 101B, and various methods are possible, such as turning on only the first indicator 101A, blinking the first indicator 101A, turning the color of the first indicator 101A red, etc. Also, when the speakers 102A and 102B are used, various methods are possible, such as making only the first speaker 102A emit a sound, or increasing the volume of the first speaker 102A.

[0076] When it is desired to use the second projector 100B, the above-mentioned notification state may be applied to the second indicator 101B and the second speaker 102B.

[0077] Next, another example of the control method for the projection system 2000 of the second embodiment will be described with reference to FIG.

[0078] As shown in FIG. 7, first, in step S41, communication between the personal computer 200 and the projectors 100A and 100B is cut off, and the projection lamps 400A and 400B are in an OFF state.

[0079] Next, in step S42, the user selects the projectors 100A and 100B from which the user wishes to project the projection image 500 (selection operation). Specifically, the control unit 110 transmits a signal to the communication unit 210 of the personal computer 200 via the communication unit 120 to select the projectors 100A and 100B. The control unit 220 of the personal computer 200 receives the signal from the communication unit 210 and causes the display unit 230 to display a message indicating which of the projection lamps 400A and 400B is to be turned on (first information, second information). As the first information and the second information, it is sufficient that the two projectors 100A and 100B are shown. For example, schematic diagrams of the two projectors 100A and 100B may be displayed, or characters representing the names of the two projectors 100A and 100B may be displayed. If the user selects the first projector 100A, the control unit 220 shifts the process to step S43. On the other hand, if the user selects the second projector 100B, the process proceeds to step S46.

[0080] Next, in step S43, wireless communication is established with the first projector 100A. Specifically, the control unit 110 causes the detection unit 130 to detect that communication has been established between the personal computer 200 and the first projector 100A.

[0081] Next, in step S44, the LED lamp of the first projector 100A, that is, the first indicator 101A, is turned on. Note that thereafter, as in step S33 above, the user may determine whether or not to turn on the first projection lamp 400A.

[0082] Next, in step S45, the first projection lamp 400A is turned ON. Specifically, the control unit 110 switches the projection unit 400 from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected. That is, the first projection lamp 400A is turned ON to project the projection image 500 onto the projection surface 300.

[0083] Next, in step S46, wireless communication is established with the second projector 100B. Specifically, the control unit 110 causes the detection unit 130 to detect that communication has been established between the personal computer 200 and the second projector 100B.

[0084] Next, in step S47, the LED lamp of the second projector 100B, that is, the second indicator 101B, is turned on. Note that thereafter, as in step S33 above, the user may determine whether or not to turn on the second projection lamp 400B.

[0085] Next, in step S48, the second projection lamp 400B is turned ON. Specifically, the control unit 110 switches the projection unit 400 from a stopped state in which the projection image 500 cannot be projected to an activated state in which the projection image 500 can be projected. That is, the second projection lamp 400B is turned ON to project the projection image 500 onto the projection surface 300.

[0086] In this way, for example, when the first projector 100A is selected as the projector to be projected between the first projector 100A and the second projector 100B, in response to the wireless connection between the personal computer 200 and the first projector 100A, the notification state of the first indicator 101A of the first projector 100A is made different from the notification state of the second indicator 101B, so that it is possible to confirm which projector is the first projector 100A. Therefore, it is possible to reliably put the first projection lamp 400A into an activated state, and the projection image 500 can be projected onto the projection surface 300.

[0087] Specifically, for example, when one personal computer 200 and two projectors 100A and 100B can be connected wirelessly, the user may want to start the projection lamp 400A in only one of the two projectors 100A and 100B, that is, the projector 100A. However, even if two pieces of information indicating the two projectors 100A and 100B are actually listed on the display unit 230 of the personal computer 200, it is often difficult for the user to determine which piece of information corresponds to which projector 100A or 100B, and the user may mistakenly start the projection lamp 400B in the other of the two projectors 100A and 100B. According to the above configuration, the notification state of the first indicator 101A can be made different from the notification state of the second indicator 101B in response to the wireless connection between the personal computer 200 and the selected first projector 100A. This makes it easier for the user to determine whether the first projector 100A intended by the user has been correctly selected by observing the first indicator 101A and the second indicator 101B, and to distinguish which of the first projector 100A and the second projector 100B the user is about to start the projection lamp 400A, 400B in. Then, based on the observation result, the state of the first projection lamp 400A of the selected first projector 100A can be switched from a stopped state to an activated state based on the result of the selection operation related to the final decision on whether to switch the state of the first projection lamp 400A of the selected first projector 100A from a stopped state to an activated state, so that it is possible to suppress the start-up of the second projection lamp 400B in the second projector 100B that is not intended by the user.

[0088] As described above, in the control method of the projection system 2000 of the second embodiment, it is preferable that the first projector 100A includes the first indicator 101A, and switching the state of the first projection lamp 400A from a stopped state to an activated state in response to establishing wireless communication between the personal computer 200 and the first projector 100A includes: when the personal computer 200 and the first projector 100A are wirelessly connected, changing the notification state of the first indicator 101A from a first notification state to a second notification state different from the first notification state; accepting a selection operation for selecting whether to switch from the stopped state to the activated state; and, when the result of the selection operation indicates that the state of the first projection lamp 400A is to be switched from the stopped state to the activated state, in response to establishing wireless communication between the personal computer 200 and the first projector 100A.

[0089] According to this method, the user can visually identify the first projector 100A that is about to switch the state of the first projection lamp 400A from a stopped state to an activated state by observing the change in the notification state of the first indicator 101A. This makes it easier for the user to make a final decision on whether or not to automatically turn on the first projection lamp 400A in the first projector 100A.

[0090] Furthermore, in a control method for a projection system 2000 of a second embodiment, a first projector 100A includes a first indicator 101A, and the projection system 2000 includes a second projector 100B including a second indicator 101B different from the first indicator 101A and a second projection lamp 400B different from the first projection lamp 400A, a personal computer 200 is capable of wirelessly communicating with at least one of the first projector 100A or the second projector 100B, and switching a state of the first projection lamp 400A from a stopped state to an activated state in response to establishing wireless communication between the personal computer 200 and the first projector 100A includes displaying, on a display unit 230 of the personal computer 200, first information indicating the first projector 100A and second information indicating the second projector 100B, and It is preferable that the method includes: accepting an operation to select whether to switch the notification state of the first indicator 101A from the notification state of the second indicator 101B in response to establishing wireless communication between the personal computer 200 and the first projector 100A; if the selected information is first information, wirelessly connecting the personal computer 200 and the first projector 100A; making the notification state of the first indicator 101A different from the notification state of the second indicator 101B when the personal computer 200 and the first projector 100A are wirelessly connected; accepting a selection operation to select whether to switch the state of the first projection lamp 400A from a stopped state to an activated state in response to establishing wireless communication between the personal computer 200 and the first projector 100A; and, if a result of the selection operation indicates that the state of the first projection lamp 400A is to be switched from the stopped state to the activated state, switching the state of the first projection lamp 400A from the stopped state to the activated state in response to establishing wireless communication between the personal computer 200 and the first projector 100A.

[0091] According to this method, the first projector 100A is selected from the first projector 100A and the second projector 100B, and when the personal computer 200 and the first projector 100A are wirelessly connected, the notification state of the first indicator 101A is made different from the notification state of the second indicator 101B, so that it is possible to confirm which projector is the first projector 100A. Therefore, it is possible to reliably put the first projection lamp 400A into an activated state, and the projection image 500 can be projected onto the projection surface 300.

[0092] Specifically, by observing the first indicator 101A and the second indicator 101B, the user can easily determine whether the intended projector 100 has been correctly selected, and can easily determine which of the first projector 100A and the second projector 100B the user is about to start the projection lamps 400A and 400B. Based on the observation result, the state of the first projection lamp 400A of the selected first projector 100A can be switched from a stopped state to an activated state based on the result of the selection operation related to the final decision on whether to switch the state of the first projection lamp 400A from a stopped state to an activated state, so that the user can suppress the second projection lamp 400B from being activated in the second projector 100B that is not intended by the user. In other words, the user can know which of the multiple projectors 100A and 100B the user is about to automatically turn on the projection lamps 400A and 400B by lighting the indicator 101 of the projector 100 that the user selected from the menu of the personal computer 200 and temporarily connected.

[0093] The following is a summary of this disclosure. (Supplementary Note 1) A control method for a projection system including a first projection device including a first projection mechanism that projects a projection image onto a projection target, and a terminal capable of wirelessly communicating with the first projection device, the control method switching a state of the first projection mechanism from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected in response to establishing wireless communication between the terminal and the first projection device.

[0094] According to this method, by establishing wireless communication between the terminal and the first projection device, the state of the first projection mechanism is switched from a stopped state to an activated state, so that the first projection mechanism can be automatically activated. This not only establishes wireless communication between the terminal and the first projection device, but also omits the user's separate task of activating the first projection mechanism, improving user convenience.

[0095] (Supplementary Note 2) A control method for the projection system according to Supplementary Note 1, comprising switching a state of the first projection mechanism from the activated state to the stopped state in response to disconnecting wireless communication between the terminal and the first projection device. According to this method, by disconnecting wireless communication, the state of the first projection mechanism is automatically switched from the activated state to the stopped state, which improves convenience for the user and contributes to power saving.

[0096] (Supplementary Note 3) A control method for a projection system according to Supplementary Note 1 or Supplementary Note 2, comprising displaying a user interface image for selecting whether or not to switch the state of the first projection mechanism from the activated state to the stopped state in response to disconnecting wireless communication between the terminal and the first projection device on at least one of the display unit of the terminal or the OSD image projected from the first projection device. According to this method, a user can select the state of the first projection mechanism, and therefore it is possible to improve convenience for a user who does not prefer to switch the state of the first projection mechanism from the activated state to the stopped state by disconnecting wireless communication between the terminal and the first projection device. In other words, the user can decide whether or not to automatically turn off the first projection mechanism.

[0097] (Supplementary Note 4) A control method for a projection system according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the first projection device includes a first notification mechanism, and switching the state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device includes: changing the notification state of the first notification mechanism from the first notification state to a second notification state different from the first notification state when the terminal and the first projection device are wirelessly connected; accepting a selection operation for selecting whether or not to switch the state of the first projection mechanism from the stopped state to the activated state; and, when a result of the selection operation indicates that the state of the first projection mechanism is to be switched from the stopped state to the activated state, in response to establishing wireless communication between the terminal and the first projection device. According to this method, a user can visually identify a first projection device for which the user is about to switch the state of the first projection mechanism from the stopped state to the activated state by observing the change in the notification state of the first notification mechanism. This allows the user to easily make a final decision as to whether or not to automatically turn on the first projection mechanism in the first projection device.

[0098] (Supplementary Note 5) A control method for a projection system according to any one of Supplementary Notes 1 to 3, wherein the first projection device includes a first notification mechanism, the projection system includes a second projection device including a second notification mechanism different from the first notification mechanism and a second projection mechanism different from the first projection mechanism, the terminal is capable of wirelessly communicating with at least one of the first projection device or the second projection device, and in response to establishing wireless communication between the terminal and the first projection device, switching a state of the first projection mechanism from the stopped state to the activated state includes displaying first information indicating the first projection device and second information indicating the second projection device on a display unit of the terminal, and accepting an operation to select either the first information or the second information. A method for controlling a projection system, comprising: when the selected information is the first information, wirelessly connecting the terminal and the first projection device; when the terminal and the first projection device are wirelessly connected, making the notification state of the first notification mechanism different from the notification state of the second notification mechanism; accepting a selection operation to select whether to switch a state of the first projection mechanism from the stopped state to the started state in response to establishing wireless communication between the terminal and the first projection device; and when a result of the selection operation indicates that the state of the first projection mechanism should be switched from the stopped state to the started state, switching the state of the first projection mechanism from the stopped state to the started state in response to establishing wireless communication between the terminal and the first projection device.

[0099] According to this method, the display unit can display the first information different from the second information in response to the wireless connection between the terminal and the selected first projection device. Also, by observing the first and second notification mechanisms, the user can easily determine whether the intended projection device has been correctly selected, and can easily determine which of the first and second projection devices the projection mechanism is to be activated. Then, based on the result of the observation, the state of the first projection mechanism of the selected first projection device can be switched from a stopped state to an activated state based on the result of the selection operation related to the final decision on whether to switch the state of the first projection mechanism of the selected first projection device from a stopped state to an activated state, so that the user can suppress the activation of the projection mechanism in a projection device not intended by the user. In other words, the gauge lamp of the projection device that the user selected from the menu of the terminal and temporarily connected among the multiple projection devices can be illuminated, and the user can know which projection device the user is about to automatically turn on the projection mechanism of.

[0100] (Supplementary Note 6) A control method for a projection system according to any one of Supplementary Note 1 to Supplementary Note 5, wherein after switching the state of the first projection mechanism from the stopped state to the activated state, a content image based on content data supplied from the terminal to the first projection device is projected as the projection image from the first projection device. According to this method, the content image is projected automatically, so that the user's operation can be further reduced. In other words, the lamp, which is the projection mechanism, can be automatically turned on to automatically project the content image.

[0101] (Supplementary Note 7) A projection system comprising a first projection device including a first projection mechanism that projects a projection image onto a projection target, and a terminal capable of wirelessly communicating with the first projection device, in which a state of the first projection mechanism is switched from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected in response to establishing wireless communication between the terminal and the first projection device. According to this configuration, the state of the first projection mechanism is switched from a stopped state to an activated state by establishing wireless communication between the terminal and the first projection device, so that the first projection mechanism can be automatically activated. This can omit the separate task of the user activating the first projection mechanism in addition to establishing wireless communication between the terminal and the first projection device, thereby improving user convenience. [Explanation of symbols]

[0102] 100, 100A... projector and first projector as a first projection device, 100B... second projector as a second projection device, 101A... first indicator as a first notification mechanism, 101B... second indicator as a second notification mechanism, 102A... speaker and first speaker as a first notification mechanism, 102B... second speaker as a second notification mechanism, 110... control unit, 120... communication unit, 130... detection unit, 140... judgment unit, 150...notification unit, 160...memory unit, 170...processing unit, 200...personal computer as terminal, 210...communication unit, 220...control unit, 230...display unit, 240...selection unit, 300...projection surface as projection target, 400...projection unit, 400A...projection lamp as first projection mechanism, first projection lamp as first projection mechanism, 400B...second projection lamp as second projection mechanism, 500...projected image, 510...content image, 1000, 2000...projection system.

Claims

1. A method for controlling a projection system including a first projection device including a first projection mechanism that projects a projection image onto a projection target, and a terminal capable of wirelessly communicating with the first projection device, comprising: A control method for a projection system, in response to establishing wireless communication between the terminal and the first projection device, switching the state of the first projection mechanism from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected.

2. 2. A method for controlling a projection system according to claim 1, comprising the steps of: A control method for a projection system, comprising: switching a state of the first projection mechanism from the activated state to the stopped state in response to disconnecting wireless communication between the terminal and the first projection device.

3. 3. A method for controlling a projection system according to claim 2, comprising the steps of: A method for controlling a projection system, comprising: displaying a user interface image on at least one of the display unit of the terminal or the image projected from the first projection device, for selecting whether or not to switch the state of the first projection mechanism from the started state to the stopped state in response to disconnecting wireless communication between the terminal and the first projection device.

4. 2. A method for controlling a projection system according to claim 1, comprising the steps of: the first projection device includes a first notification mechanism, switching a state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device, when the terminal and the first projection device are wirelessly connected, changing an alert state of the first alert mechanism from a first alert state to a second alert state different from the first alert state; receiving a selection operation for selecting whether or not to switch from the stopped state to the activated state; when a result of the selection operation indicates that a state of the first projection mechanism is to be switched from the stopped state to the activated state, switching a state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device; A method for controlling a projection system, comprising:

5. 2. A method for controlling a projection system according to claim 1, comprising the steps of: the first projection device includes a first notification mechanism, the projection system includes a second projection device including a second notification mechanism different from the first notification mechanism and a second projection mechanism different from the first projection mechanism, the terminal is capable of wirelessly communicating with at least one of the first projection device and the second projection device; switching a state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device, displaying first information indicating the first projection device and second information indicating the second projection device on a display unit of the terminal; receiving an operation to select either the first information or the second information; If the selected information is the first information, wirelessly connecting the terminal and the first projection device; When the terminal and the first projection device are wirelessly connected, a notification state of the first notification mechanism is made different from a notification state of the second notification mechanism; receiving a selection operation for selecting whether to switch a state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device; when a result of the selection operation indicates that a state of the first projection mechanism is to be switched from the stopped state to the activated state, switching a state of the first projection mechanism from the stopped state to the activated state in response to establishing wireless communication between the terminal and the first projection device; A method for controlling a projection system, comprising:

6. 2. A method for controlling a projection system according to claim 1, comprising the steps of: A method for controlling a projection system, in which, after switching the state of the first projection mechanism from the stopped state to the started state, a content image based on content data supplied from the terminal to the first projection device is projected from the first projection device as the projection image.

7. a first projection device including a first projection mechanism that projects a projection image onto a projection target; a terminal capable of wirelessly communicating with the first projection device; Equipped with A projection system that switches the state of the first projection mechanism from a stopped state in which the projection image cannot be projected to an activated state in which the projection image can be projected in response to establishing wireless communication between the terminal and the first projection device.

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