JP6463527B2 - Information processing apparatus, control method therefor, and program - Google Patents

Description

  The present invention relates to a technique for externally controlling a projection apparatus having a projection function and an illumination function.

  Patent Literature 1 and Patent Literature 3 disclose devices having an illumination function and a projection function. This makes it possible to project an image while functioning as an illumination, for example, by installing it at the same position as an existing lighting fixture. In Patent Document 2, an information processing device such as a computer and a projection device such as a projector are communicably connected, and after the connection, image data is sent from the information processing device to the projection device, and the projection device projects the image data. Techniques to do this are disclosed.

JP 2012-186118 A JP 2009-296661 A International Publication No. 2016/104191

  There may be a case in which the projection apparatus having the projection function and the illumination function as described above is controlled from the outside by the information processing apparatus. In such a case, since the projection apparatus is not directly operated, the user may not be able to easily recognize which function the projection apparatus is operating. In such a case, there is a possibility of malfunctioning by connecting to a projector that is operating with a function that should not be connected. For example, when the user connects the information processing apparatus without recognizing the projection apparatus operating in the illumination mode, the illumination function may be stopped against the user's intention and switched to the projection function.

  The present invention has been made in view of the above, and an object thereof is to present to a user which function the projection apparatus is operating in an information processing apparatus capable of externally controlling a projection apparatus having a projection function and an illumination function. It is to provide an information processing apparatus capable of performing the above.

  In order to solve the above-described problems and achieve the object, the present invention provides an information processing apparatus capable of controlling a projection apparatus from the outside, the communication means communicating with the projection apparatus, and the projection via the communication means. An acquisition unit that acquires information about the function of the projection device from the apparatus, a presentation unit that presents information about the function of the projection device acquired by the acquisition unit, and the projection device acquired by the acquisition unit And control means for controlling the presenting means so as to present whether the projection apparatus is operating by the projection function or the illumination function based on information on the function.

  According to the present invention, in an information processing apparatus capable of controlling a projection apparatus having a projection function and an illumination function from the outside, the user is presented with which function the projection apparatus is operating. Can be easily grasped.

The system block diagram which consists of a smart phone and a projector of this embodiment. The block diagram which shows the internal structure of the smart phone and projector of this embodiment. FIG. 6 is a transition diagram of operation modes of the projector according to the present embodiment. 5 is a flowchart showing connection processing between the smartphone and the projector according to the first embodiment. FIG. 3 is a diagram illustrating a UI screen when connecting the smartphone and the projector according to the first embodiment. The figure which illustrates the communication data at the time of connection of the smart phone of Embodiment 1 and a projector. FIG. 3 is a diagram illustrating a UI screen when connecting the smartphone and the projector according to the first embodiment. 10 is a flowchart illustrating a UI screen display process when the smartphone according to the second embodiment is connected to a projector. The figure which illustrates UI screen at the time of the connection of the smart phone of Embodiment 2, and a projector. 10 is a flowchart showing connection processing between a smartphone and a projector according to a third embodiment. The figure which illustrates UI screen at the time of the connection of the smart phone of Embodiment 3, and a projector.

  Hereinafter, embodiments for carrying out the present invention will be described in detail. The embodiment described below is an example for realizing the present invention, and should be appropriately modified or changed according to the configuration and various conditions of the apparatus to which the present invention is applied. It is not limited to the embodiment. Moreover, you may comprise combining suitably one part of each embodiment mentioned later.

  [Embodiment 1] Embodiment 1 will be described below.

  FIG. 1 is a system configuration diagram of this embodiment. The system of this embodiment can remotely control the projector 200 having a projection function and a lighting function as a projection apparatus from the outside by an application of the smartphone 100 as an information processing apparatus. The projector 200 can be switched between a projection mode corresponding to the projection function and an illumination mode corresponding to the illumination function by an application of the smartphone 100.

  In the present embodiment, an example in which the projector 200 includes a projection function and an illumination function will be described. However, the present invention is not limited to the illumination function, but a function of outputting sound using a speaker, a circulator function of convection of air using a fan, An air conditioning function for adjusting temperature and humidity, an air cleaning function for purifying air, or a combination of these functions may be used. In addition, the illumination function is not limited to a general illumination function such as a spotlight, but various illuminations can be applied.

  In FIG. 1, one smartphone 100 and one projector 200 are shown, but a network can be configured by one smartphone 100 and a plurality of projectors 200.

  In the following, the smartphone 100 searches for a plurality of projectors 200 that exist in the same network, and presents the search result to the user. An embodiment in which a session is established with a single projector selected by the user according to a predetermined protocol, and image data is transferred and projected by the projector will be described.

  <Description of Smartphone> With reference to FIG. 2 (a), the configuration and functions of the smartphone 100 of this embodiment will be described.

  2A, the smartphone 100 includes a control unit 101, a RAM 102, a ROM 103, a communication unit 104, an operation unit 105, a display unit 106, a display control unit 107, an imaging unit 108, a battery 109, a power supply unit 110, and a power input unit. 111.

  The control unit 101 is an arithmetic processing unit (CPU) that controls each block of the smartphone 100. The RAM 102 is a volatile memory that temporarily stores a control program and data as a work memory. The RAM 102 is used as a buffer memory that temporarily stores image data picked up by the image pickup unit 108 described later, and an image display memory of the display unit 106 described later. The ROM 103 is a non-volatile memory that stores a control program describing the processing procedure of the control unit 101. The control program here is a program for executing the processing of the flowchart described later. The control unit 101 executes a control program stored in the ROM 103 to realize an application function described later. Note that instead of the control unit 101 controlling the entire apparatus, a plurality of hardware may share the processing to control the entire apparatus. The same applies to other hardware of the projector 200 described below, and a plurality of hardware may share the processing.

  The ROM 103 stores an OS (operating system) that is basic software executed by the control unit 101 and an application that realizes an applied function in cooperation with the OS. Communication processing of the smartphone 100 in the present embodiment is realized by reading software provided by an application. It is assumed that the application has software for using the basic functions of the OS installed in the smartphone 100. Note that the OS of the smartphone 100 may have software for realizing the processing in the present embodiment.

  The communication unit 104 is an interface for connecting to an external device such as a projector 200 described later. The smartphone 100 of this embodiment can exchange data with an external device via the communication unit 104. Further, the communication unit 104 can exchange data with an external device such as a server via a public line such as 3G / LTE or a communication network such as the Internet or an intranet. In the present embodiment, the communication unit 104 includes an interface for communicating with an external device in accordance with the IEEE 802.11 standard. The control unit 101 realizes wireless communication with an external device by controlling the communication unit 104. Note that the communication method is not limited to the wireless LAN, and can include, for example, a wireless communication interface such as an infrared communication interface or WirelessUSB.

  The operation unit 105 includes operation members such as various switches and buttons for receiving various operations from the user, and a touch panel integrally formed with a display panel of the display unit 106 described later. The operation unit 105 includes a power button, a home button, and a touch panel. The home button interrupts an application that is being executed when the user presses it, and displays a home screen from which another application can be selected on the display unit 106 described later. be able to.

  The display unit 106 displays a photographed image and a GUI (Graphical User Interface) such as characters, figures, and symbols for interactive operation. The display unit 106 is a display device such as a liquid crystal display or an organic EL display.

  The display control unit 107 outputs a control signal for displaying a captured image, a UI (User Interface) screen for operating the projector 200, an operation image icon, and the like to the display unit 106.

  The imaging unit 108 includes a lens group including a zoom lens and a focus lens, and a shutter having a diaphragm function. In addition, the imaging unit 108 includes an imaging device configured by a CCD or CMOS device that converts a subject image into an electrical signal, and an A / D converter that converts an analog image signal output from the imaging device into a digital signal. Under the control of the control unit 101, the imaging unit 108 converts subject image light imaged by a lens included in the imaging unit 108 into an electrical signal by an imaging device, performs noise reduction processing, and the like, and includes a digital signal. Output image data.

  The battery 109 includes a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a lithium ion battery, and sends power to the power supply unit 110 described later. The battery 109 may be built in the smartphone 100 or may be detachable. The power supply unit 110 controls power supplied from the battery 109 or a power input unit 111 described later to each block of the smartphone 100. The power input unit 111 receives power from a commercial (AC) power source or the like, rectifies it to a predetermined voltage, and sends it to the power source unit 110.

  In the present embodiment, a smart phone which is a kind of mobile phone is illustrated as the information processing apparatus, but a mobile device such as a tablet device, a personal computer (PC), or the like may be used. Further, it may be a glasses-type terminal or a wristwatch-type terminal having a communication function.

  <Operation of Smartphone> Next, the normal operation of the smartphone 100 of this embodiment will be described.

  When a power-on operation signal is input through the operation unit 105 by a user operation, the control unit 101 controls the power supply unit 110 to supply power to each block, and puts each block in a standby state. After the power is turned on, the control unit 101 writes the control program stored in the ROM 103 to the RAM 102, and performs initialization processing on each block according to the control program. In the initialization process, the control unit 101 controls the display control unit 107 to display the standby screen image data on the display unit 106.

  The smartphone 100 according to the present embodiment can acquire and execute an application program that operates on the OS from the Internet or the like via the communication unit 104 by the control unit 101. The control unit 101 can also communicate with an external device via the communication unit 104 in accordance with an application program. For example, the control unit 101 can transfer the display image data from the smartphone 100 to the projector 200 after performing the connection process with the projector 200, and can perform projection with the projector 200. On the other hand, when a power-off operation signal is input through the operation unit 105 by a user operation, the control unit 101 stores setting data and the like written in the RAM 102 in the ROM 103 so that each block performs an end process. Control.

  [Description of Projector] Next, the configuration and functions of the projector 200 of this embodiment will be described with reference to FIG.

  2B, the projector 200 includes a control unit 201, a RAM 202, a ROM 203, a communication unit 204, an operation unit 205, a display unit 206, a display control unit 207, an imaging unit 208, a battery 209, a power supply unit 210, and a power input unit. 211 is provided. Since the basic functions of the respective blocks are the same as those of the smartphone 100, detailed description thereof is omitted.

  The communication unit 204 receives control signals and video data from an external device such as the smartphone 100, and can use a communication method such as a wireless LAN or a wired LAN.

  The ROM 203 is a semiconductor memory, a hard disk, or the like that is built in or detachable from the projector 200. The display unit 206 displays the status of the projector 200, a warning, and the like. The imaging unit 208 images a screen (not shown).

  The projector 200 includes an image processing unit 212, a liquid crystal unit 221, a liquid crystal driving unit 222, a light source 223, a light source control unit 224, a projection unit 225, and a projection control unit 226.

  The image processing unit 212 performs processing for changing the number of frames, the number of pixels, the image shape, and the like on the video data read from the ROM 203, the video data received by the communication unit 204, and the video data read by the memory I / F 227 described later. It is sent to the liquid crystal drive unit 222. Note that the control unit 201 may execute the same processing as the image processing unit 212. The image processing unit 212 can execute functions such as frame thinning processing, frame interpolation processing, resolution conversion processing, image synthesis processing, geometric correction processing (keystone correction processing, curved surface correction processing), and panel correction.

  The liquid crystal unit 221 includes three liquid crystal panels to which any one of R, G, and B liquid crystal elements is assigned, and forms an image by transmitting light to each liquid crystal panel. The liquid crystal driving unit 222 controls the voltage applied to the liquid crystal of the pixel of the liquid crystal element of each of the R, G, and B liquid crystal panels based on the video data processed by the image processing unit 212, and the transmittance of the liquid crystal element Adjust.

The light source 223 irradiates the liquid crystal unit 221 with light. The light source control unit 224 performs on / off control of the light source 223 and light amount control.
The projection unit 225 projects an image transmitted through the liquid crystal unit 221 onto a screen (not shown). The projection unit 225 includes a zoom lens, a focus lens, and a light diffusion unit (not shown) arranged on the optical path. The projection unit 225 can transmit light without diffusing light and can diffuse and transmit light under the control of a projection control unit 226 described later. As the light diffusing unit, PDLC (Polymer Dispersed Liquid Crystal) capable of controlling transmission and diffusion of light by an applied voltage or reverse PDLC can be used. Alternatively, a movable optical member such as a diffusion plate that can be inserted into and retracted from the optical path may be used.

  The projection control unit 226 controls the zoom lens and the focus lens of the projection unit 225, performs zoom magnification and focus adjustment, and controls the light diffusion unit.

  The projector 200 includes a memory I / F 227, a timer 228, a temperature sensor 229, a cooling unit 230, a file reproduction unit 231, an infrared receiving unit 232, and a focus detection unit 233.

  The memory I / F 227 is an interface for reading / writing data by connecting a memory device such as a USB memory. A pointing device or a keyboard may be connected to the memory I / F 227. The timer 228 measures the time used for various controls and the time of the built-in clock. The temperature sensor 229 measures the temperature of the liquid crystal unit 221 and the light source 223. The cooling unit 230 includes a fan and a heat sink, and discharges heat generated inside the projector 200 to the outside for cooling.

  The file playback unit 231 is controlled by the control unit 201 and decodes an encoded video file and the like. The infrared receiving unit 232 receives infrared rays from a remote controller (not shown) and other electronic devices, and sends an operation signal to the control unit 201. The focus detection unit 233 detects the distance between the projector 200 and a screen (not shown), and detects the focal distance.

  Note that the control unit 201 and other blocks are connected by an internal bus 234, and access such as transmission and reception of control signals and data to each block can be performed.

  In this embodiment, a liquid crystal projector is exemplified as the projection device. However, the present invention is not limited to this, and a projector using a DLP (digital light processing) system or an LCMOS (reflection liquid crystal element) system may be used. .

  <Projector Operation> Next, the normal operation of the projector 200 of this embodiment will be described.

When a power-on operation signal is input through the operation unit 205 by a user operation, the control unit 201 controls the power supply unit 210 so as to supply power to each block, and causes the projector 200 to enter a standby mode (standby state). Transition to. In standby mode, the infrared ray receiving unit 232 and the communication unit 204 is ready to operate, the projector 200 becomes ready to receive an operation signal from an external device such as the smartphone 100.

  Next, when an operation signal for transitioning to the projection mode is input through the operation unit 205 by a user operation, the control unit 201 controls the power supply unit 210 to supply power to a block necessary for the projection operation. Then, after power is supplied to each block, the control unit 201 controls the light source control unit 224 to start light emission from the light source 223. Next, the control unit 201 adjusts the projection state of the projection unit 225 by controlling the projection control unit 226 based on the focus information obtained by the focus detection unit 233. The projection control unit 226 controls the projection light to form an image on a screen (not shown) by driving the zoom lens and the focus lens of the projection unit 225. In this way, the preparation operation for projection is completed.

  In the illumination mode, the projector 200 can also operate as illumination by projecting and diffusing white light by controlling the light diffusing unit of the projection unit 225 by the projection control unit 226. The illumination method is not limited to this method. For example, the projection surface may be brightened by projecting a white image.

  Further, the control unit 201 sends a control signal to each block so that the end process is performed when a power-off operation signal is input via the operation unit 205. When preparation for termination is completed, the power supply unit 210 sequentially terminates power supply to blocks other than the blocks that should be operated during standby, and transitions to the standby mode.

  Here, the state transition to each operation mode of the projector 200 of the present embodiment will be described using the state transition diagram of FIG. As described above, when the power is turned on, projector 200 transitions to the standby mode of ST301. Next, when an operation signal is input so as to transition to the projection mode, the transition is made to the projection mode of ST302. In ST301 standby mode, when an operation signal is input so as to transit to the illumination mode, the operation transits to ST303 illumination mode. The illumination mode and the projection mode can be switched between each other, and both can be changed by a user operation. Further, in the projection mode or the illumination mode, when an operation signal for turning off the power is input, the mode is changed to the standby mode. Note that the above-described operation signal can be input via the operation unit 205 by the user directly operating the projector 200, or the signal transmitted based on the operation by the user operating the smartphone 100 can be transmitted to the communication unit. It is also possible to input by receiving 204.

  As described above, the projector 200 according to the present embodiment can transition to any one of the standby mode, the projection mode, and the illumination mode in accordance with a user operation. When transitioning to the illumination mode, the projector 200 controls the light diffusing unit inside the projection unit 225 to make the light emitted from the light source 223 diffuse.

  <UI Screen Display Control> Next, UI screen display control by the smartphone 100 of this embodiment will be described with reference to FIGS.

  Below, each sequence of the smart phone 100 and the projector 200 when the smart phone 100 searches for a plurality of projectors existing in the same network as the smart phone 100 will be described. Note that the configurations of the smartphone 100 and the projector 200 of the present embodiment are the same as those in FIG.

  4A and 4B show sequences of the smartphone 100 and the projector 200 until the smartphone 100 searches for a plurality of projectors 200 belonging to the same subnet range and displays the search result on the display unit 106, respectively. . Here, it is assumed that the smartphone 100 and the projector 200 are in a communicable state, and projector search, image data projection, remote control, and the like can be performed based on a predetermined communication method.

  4A is realized by the control unit 101 of the smartphone 100 executing a control program provided by the application and controlling each unit of the smartphone 100. Note that the application has a control program for using basic functions of the OS installed in the smartphone 100. Note that the OS of the smartphone 100 may have a control program for realizing the processing in the present embodiment. The same applies to FIGS. 8 and 10 described later.

  First, the process of the control unit 101 when the smartphone 100 searches for the projector 200 will be described with reference to FIG. When the user touches a menu or the like displayed on the display unit 106 of the smartphone 100, the control unit 101 starts searching for a projector in the network.

  FIG. 5 illustrates a UI screen related to searching for the smartphone 100. (a) is a UI screen before searching for a projector, and (b) is a UI screen in a state where a list of projectors detected by the projector search is displayed. Show. In FIG. 5, 5001 is a name display field, 5002 is a mode display field indicating an operation mode, and 5003 is a button icon for the user to instruct start of search. When the user touches a search button 5003, the control unit 101 starts searching for projectors belonging to the same subnet range. Then, the control unit 101 displays the name of the projector in the name display field 5001 and the image icons 5002a and 5002b corresponding to the operation mode of the projector in the mode display field 5002 as search results.

  In S401, an interrupt occurs to the control unit 101, and the control unit 101 transmits a search command via the communication unit 104 based on the touched button (object). The communication method here may be any method as long as communication is possible by adding information such as UDP (User Datagram Protocol). The control unit 101 may designate a broadcast address as a transmission destination of the search command, set the IP address and port number of the smartphone 100 in the payload portion, and distribute the search request to devices in the same subnet.

  In step S <b> 402, the control unit 101 waits for a response to the search from the projector 200. Here, the processing up to S405 described later is looped, and the end condition is that the user presses a search cancel button (not shown) displayed after the search is started. When it is detected that the control unit 101 has received a response via the communication unit 104, the process proceeds to S403.

  In step S <b> 403, the control unit 101 transmits a status information request command to the projector 200 that has received the response via the communication unit 104.

  In step S <b> 404, the control unit 101 waits for a response to the status information request command from the projector 200. When the control unit 101 receives a response via the communication unit 104, the process proceeds to S405.

  In step S <b> 405, the control unit 101 reads the name and operation mode information (described later) of the projector 200 from the state information received via the communication unit 104, and writes it to the RAM 102. The control unit 101 reads image icon data associated with each operation mode from the ROM 103 based on the read operation mode information. The control unit 101 controls the display control unit 107 to draw the read image icon data and the name of the projector 200 at a predetermined position.

  Next, the sequence of the control unit 201 when the projector 200 receives a search command will be described with reference to FIG.

  4B is realized by the control unit 201 of the projector 200 writing the control program stored in the ROM 203 to the RAM 202 and executing it. The same applies to FIG. 10 described later.

  In step S411, the control unit 201 is in a search command reception waiting state. In the present embodiment, it is assumed that the projector 200 has transitioned to the command waiting state when the projector 200 transitions to the standby mode. When the control unit 201 receives the search command via the communication unit 204, the control unit 201 advances the process to step S412.

  In step S412, the control unit 201 writes the received data to the RAM 202, and uses the communication unit 204 to send response information indicating that it is present, using the transmission source IP address, port number, and the like included in the received data as a reply destination. Reply to the smartphone 100.

  In step S413, the control unit 201 waits for a request command for state information, and when the request command is received, the process proceeds to step S414.

  In S <b> 414, the control unit 201 transmits the data illustrated in FIG. 6 to the smartphone 100 via the communication unit 204. FIG. 6 illustrates the structure of data transmitted to the smartphone 100 in S414. D600 indicates a data structure in UDP, and D601 to D604 indicate status information of the projector 200 and the like. D601 is information indicating the model type, and is a data part that can indicate, for example, a projection function and an illumination function, only a projection function, and only an illumination function. D602 is information indicating an operation mode, for example, a data part that can indicate a projection mode, an illumination mode, a standby mode, and the like. D603 is information indicating an operation state, and is a data section that can indicate more detailed states in each operation mode, such as projection on, projection off, illumination on, and illumination off. Projection on is a state where image data is projected in the projection mode, and illumination on is a state where light emitted from the light source 223 is diffused. Projection off and illumination off are states in which the light source is controlled and light irradiation is stopped in the projection mode and illumination mode, respectively. D604 is information indicating the name of the projector 200, and is a data part that can indicate an individual name preset by the user. Along with the data structure described above, the control unit 201 of the projector 200 reads various information from the RAM 202 and the ROM 203, sets data, and transmits the data to the smartphone 100 via the communication unit 204.

  Next, a display example of a UI screen after searching by the smartphone 100 will be described with reference to FIG.

  First, a common part of FIGS. 7A to 7C will be described. In FIG. 7, 7001 is a name display field, 7002 is a mode display field indicating an operation mode, and 7003 is a button icon for the user to instruct start of search. In the name display field 7001, name information transmitted from the projector 200 is displayed. In the mode display column 7002, image icons corresponding to each operation mode are displayed. FIG. 7 shows a display example when searching for six projectors 200A to 200F. When the name “AAA” and the operation mode “lighting” are received from the projector 200A, an image icon 7002a corresponding to “lighting” is displayed in the mode display field 7002. As another case, when the name “CCC” and the operation mode “projection” are received from the projector 200C, the image icon 7002b corresponding to “projection” is displayed in the mode display field 7002. When the name “FFF” and the operation mode “standby” are received from the projector 200F, an image icon 7002c corresponding to “standby” is displayed in the mode display field 7002. In addition, although the search of the projector by the smart phone 100 demonstrated here is performed according to the search start instruction by a user, for example, while the application of the smart phone 100 is starting, a program performs a periodic search automatically, and the result is appropriately displayed on the UI screen. May be reflected.

  Here, a display form of a UI screen displayed on the display unit 106 of the smartphone 100 in accordance with information received from the projector 200 will be described.

  FIG. 7A is an example of a UI screen that reflects information indicating an operation state corresponding to D603 in FIG. In the mode display field 7002, image icons corresponding to the operation modes of the names “CCC” and “DDD” are displayed in a greyed-out state so as to be identifiable, and the operation states of the projectors 200C and 200D are projected off and illumination off. Presents that there is. Since the image icons corresponding to the operation modes of the names “AAA” and “BBB” are not grayed out, it is indicated that the operation states of the projectors 200A and 200B are projection on and illumination on. With this UI screen, it is alternatively presented which of the operating states of the projectors operating with the projection function and the lighting function.

  FIG. 7B is an example of a UI screen reflecting information indicating the model type corresponding to D601 in FIG. In the mode display field 7002, the image icon 7002a presents that it has an illumination function, and the image icon 7002b presents that it has a projection function. In the mode display field 7002, the projectors 200A and 200B with the names “AAA” and “BBB” have the model type “projection function and illumination function”, and thus the mode display field 7002 displays image icons 7002a and 7002b. Is done. When the operation mode is not “projection mode”, the image icon 7002b corresponding to the projection mode is grayed out. When the operation mode is not “lighting mode”, the image icon 7002a corresponding to the illumination mode is grayed out. Is displayed.

  FIG. 7C is an example of a UI screen when projectors searched based on information indicating the operation mode corresponding to D602 in FIG. 6 are sorted and rearranged for each operation mode. In FIG.7 (c), it sorts from the head in order of projection mode, illumination mode, and standby mode. In the mode display field 7002, the projectors 200A, 200D, and 200E with names “AAA”, “DDD”, and “EEE” present an image icon 7002b corresponding to the projection mode. In addition, projectors 200B and 200C with names “BBB” and “CCC” are presented with an image icon 7002a corresponding to the illumination mode. The projector 200F with the name “FFF” is presented with an image icon 7002c corresponding to the standby mode.

  The screens shown in FIGS. 7A to 7C may be switchable by a user operation, or only at least one screen may be employed. Further, the items displayed in FIGS. 7A to 7C may be combined and displayed on one screen. In addition, based on the connection history with the projector, the connection date and time, the number of connections, etc., the projectors are sorted in order from the most recently connected projector, or sorted in order from the projector with the highest number of connections and presented in a predetermined order. May be.

  Although not shown, a projector in a specific operation mode (for example, an illumination mode) may be hidden in order to avoid connection to a projector in an unintended operation mode. In this case, the control may be performed so as to be excluded from the projector candidates that can be selected by the user on the UI screen of FIG. When the user selects one of the projectors listed on the UI screen, the control unit 101 establishes a connection with the selected projector and transfers the image data to the connected projector, thereby projecting the image data. Can be done.

  As described above, by controlling the display of the UI screen in accordance with the function information received from the projector 200, the operating state of the searched projector can be presented, and the projector is erroneously connected to the projector in an unintended operation mode. Inconveniences that occur can be reduced.

  [Second Embodiment] Next, a second embodiment will be described.

  In the first embodiment described above, an example in which the operation state of the projector is displayed by the image icon corresponding to the operation mode has been described. However, in this embodiment, after the user selects a projector to be connected, the operation mode of the projector is displayed on the UI screen. An example of notification will be described. In the following description, differences from the first embodiment will be mainly described.

  FIG. 8 shows a sequence of UI screen display control processing performed by the control unit 101 after the smartphone 100 searches for the projector 200.

  When the user touches the display unit 106 of the smartphone 100 to select a projector to be connected, the process starts.

  In step S <b> 801, when the control unit 101 receives an operation signal for selecting a projector via the operation unit 105 by a user operation on the display unit 106, the process proceeds to step S <b> 802.

  In step S802, the control unit 101 reads information indicating the operation mode of the selected projector from the RAM 102, and determines whether the information indicating the operation mode is the illumination mode. It is assumed that this information is written in the RAM 102 by the control unit 101 at the timing received from the communication unit 104 when searching for a projector. If the control unit 101 determines that the information indicating the operation mode is the illumination mode, the control unit 101 advances the process to step S803.

  In step S803, the control unit 101 reads the UI data 9004 for prompting the user to confirm connection as illustrated in FIG. 9 from the ROM 103, and controls the display control unit 107 to display the UI data 9004 on the display unit 106 as a UI screen. The UI screen shown in FIG. 9 displays UI data 9004 including a character string and an image icon for reconfirming the connection to the user, and presents options “Yes” and “No”. When the user presses “Yes”, the control unit 101 starts connection processing to the selected projector, and the projector 200 changes the operation mode from the illumination mode to the projection mode and is transferred from the smartphone 100. The image data can be displayed. If “No” is pressed, the connection process may not be performed, and the UI screen may be displayed as a result of the re-search. When determining that the operation mode of the projector selected in S802 is not the illumination mode, the control unit 101 does not display the UI screen illustrated in FIG. 9 and starts the connection process.

  As described above, by controlling to display the UI screen according to the operation mode of the selected projector, it is possible to reduce the inconvenience of erroneous connection to an unintended projector.

  [Embodiment 3] Embodiment 3 will be described below.

  In the second embodiment, the UI screen for prompting the user to confirm according to the operation mode of the selected projector has been described. However, in this embodiment, the UI screen can be displayed even after connection and the operation mode is notified. Will be explained. In the following description, differences from the first embodiment will be mainly described.

  The configurations of the smartphone 100 and the projector 200 of the present embodiment are the same as those in FIG.

  FIGS. 10A and 10B show a sequence of UI screen display control processing by the control unit 101 after the user selects a projector to be connected via the UI screen.

  In S1001, when the control unit 101 receives an operation signal for selecting a projector via the operation unit 105 by a user operation on the display unit 106, the control unit 101 advances the process to S1002.

  In step S <b> 1002, the control unit 101 starts connection processing and image data transmission to the project selected via the communication unit 104.

  In step S <b> 1003, the control unit 101 reads connection cancellation image icon data from the ROM 103 and controls the display control unit 107 to display the UI screen on the display unit 106. FIG. 11 shows a display example of a UI screen for canceling connection, and a “connection cancel” option 1115 is presented.

  In step S1004, the control unit 101 sets a timer at a predetermined time, and executes interrupt permission processing in an interrupt control block (not shown) in the control unit. This interrupt permission process will be described with reference to FIG. When the interrupt permission process is started, a signal is output from the internal interrupt control block. In S1010, the control unit 101 determines whether a predetermined time has elapsed by the timer 228, and skips the processing of S1011 and S1012 and advances the process to S1005 until the predetermined time elapses. In step S1011, the control unit 101 controls the display control unit 107 to delete the UI screen that accepts connection cancellation. In S1012, the control unit 101 outputs an interrupt prohibition signal to the internal interrupt control block, and the process proceeds to S1005.

  Returning to FIG. 10A, in step S <b> 1005, the control unit 101 determines whether a connection cancel operation signal is input through the operation unit 105 by a user operation. If it is determined that the connection cancel has been touched, the control unit 101 advances the process to S1006, and if not, advances the process to S1007.

  In step S <b> 1006, the control unit 101 transmits a command for changing to the illumination mode via the communication unit 104.

  In S1007, the control unit 101 determines whether or not the UI screen for canceling connection has already been deleted by the interrupt permission process. If it is determined that the UI screen has not been deleted, the process returns to S1005 and determines that the UI screen has been deleted. If so, the process ends.

  In step S <b> 1008, the control unit 101 transmits an illuminance return command via the communication unit 104. In step S1009, the control unit 101 stops the transfer of image data via the communication unit 104, transmits a connection release command, and ends the process. In S1008, the smartphone 100 controls the projector 200 to restore the illuminance, but the projector 200 may restore the illuminance to the previous state by itself. For example, when the projector 200 transitions from the illumination mode to the projection mode, the illuminance information before the transition may be stored in the ROM 203, and when returning to the illumination mode again, the illuminance information may be read from the ROM 203 and the light source 223 may be set by itself.

  In step S1009, the control unit 101 stops the transfer of image data via the communication unit 104, transmits a connection release command, and ends the process.

  Next, FIG. 10C illustrates a control processing sequence performed by the control unit 201 of the projector after the user selects a projector that the user desires to connect via the UI screen.

  In step S <b> 1101, the control unit 201 establishes a connection with the smartphone 100 in response to receiving a connection establishment request from the smartphone 100.

  In step S <b> 1102, the control unit 201 writes a parameter related to illuminance currently set in the ROM 203.

  In S1103, the control unit 201 stops the output of the diffused light from the light source 223, controls the light source control unit 224 and the projection control unit 226 to output the projection light from the projection unit 225, and switches from the illumination mode to the projection mode. Change the operating state to

  In S1104, the control unit 201 controls the image processing unit 212 and the liquid crystal driving unit 222 to project the image data from the smartphone 100 received via the communication unit 204, and shifts to a command reception waiting state in S1105. . In step S1105, when the control unit 201 receives a command from the smartphone 100 via the communication unit 204, the process proceeds to step S1106.

  In step S1106, the control unit 201 determines the command type based on the data received from the smartphone 100. If it is determined that the command is a lighting mode transition command, the control unit 201 proceeds to step S1107. If not, the control unit 201 proceeds to step S1108. Proceed to

  In S1107, the control unit 201 returns to the command reception waiting state in S1105 after sending a control signal necessary for switching to the illumination mode to each block of the smartphone 100.

  In step S1108, the control unit 201 determines the command type based on the data received from the smartphone 100. If it is determined that the command is an illuminance return command, the process proceeds to step S1109. If not, the process proceeds to step S1110. Proceed.

  In step S1109, the control unit 201 reads the illuminance parameter written in the ROM 203 into the RAM 202, controls the light source control unit 224 based on the read illuminance, and then returns to the command reception waiting state in step S1105.

  In step S1110, the control unit 201 determines a command type based on data received from the smartphone 100. If it is determined that the command is a connection release command, the process proceeds to step S1111. Otherwise, the control unit 201 enters a command reception waiting state in step S1105. Return.

  In step S1111, the control unit 201 controls the communication unit 204 to disconnect the connection with the smartphone 100, and ends the process.

  As described above, by displaying the UI screen for canceling the connection after connecting to the projector in the illumination mode, it is possible to suppress the influence exerted by switching from the illumination mode to the projection mode as early as possible. Become.

[Other Embodiments]
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

DESCRIPTION OF SYMBOLS 100 ... Smartphone (information processing apparatus), 101 ... Control part, 104 ... Communication part, 105 ... Operation part, 106 ... Display part, 200 ... Projector (projection apparatus), 201 ... Control part, 204 ... Communication part, 223 ... Light source 224: Light source control unit, 225 ... Projection unit, 226 ... Projection control unit

Claims (18)

An information processing apparatus capable of controlling the projection apparatus from the outside,
Communication means for communicating with the projection device;
Obtaining means for obtaining information about the function of the projection apparatus from the projection apparatus via the communication means;
Presenting means for presenting information related to the function of the projection device acquired by the acquiring means;
Based on the information about the function of the projection device acquired by the acquisition unit, the presentation unit is configured to present whether the projection device is operating by the projection function or the illumination function. An information processing apparatus comprising: control means for controlling the information processing apparatus.   The control means controls the presentation means so as to alternatively present which one of the operating state of the projection apparatus is operating by the projection function and the operating state of the illumination function. The information processing apparatus according to claim 1. Search means for searching for a projection device that can communicate with the communication means,
2. The information processing according to claim 1, wherein the control unit controls the projection device searched for by the search unit so that the function of the projection device and an operation state by the function are displayed in a list. apparatus.   The control means controls to display, for each projection apparatus searched by the search means, whether the projection apparatus is operating by a projection function or an illumination function. The information processing apparatus according to claim 3.   5. The information according to claim 3, wherein the control unit performs control so that the functions and operation states of the projection apparatuses searched by the search unit are rearranged and displayed for each function. Processing equipment.   When the projection device searched for by the search means does not have the illumination function, the control means performs control so that the projection device does not have the illumination function in an identifiable manner. The information processing apparatus according to claim 3, wherein the information processing apparatus is characterized.   The information processing apparatus according to claim 4, wherein the control unit performs control so as not to display information regarding a function of the projection apparatus when the projection apparatus is in an operation state by the illumination function.   The information processing apparatus according to claim 3, further comprising a selection unit that allows a user to select a projection device that the user wants to connect from among the projection devices searched by the search unit.   9. The control unit according to claim 8, wherein the control unit notifies that the projection device selected by the user is in an operating state by an illumination function before being connected to the information processing device by the communication unit. Information processing device.   9. The control unit according to claim 8, wherein the control unit notifies whether or not the connection with the projection device selected by the user is executed before the communication unit is connected to the information processing device. Information processing device.   9. The information processing apparatus according to claim 8, wherein the control unit presents a user operation for releasing the connection for a predetermined time after the projection apparatus selected by the user is connected. .   When the control unit receives a user operation for releasing the connection, the control unit switches the operation mode of the projection apparatus having been disconnected to the illumination mode, and controls the projection apparatus to have an illuminance before being connected. The information processing apparatus according to claim 11. An information processing apparatus capable of controlling the projection apparatus from the outside,
Communication means for communicating with the projection device;
Obtaining means for obtaining information about the function of the projection apparatus from the projection apparatus via the communication means;
Based on the information about the function of the projection apparatus acquired by the acquisition unit, the projection apparatus is in a state of using a projection mode in which the projection function of the projection apparatus is used and an illumination function of the projection apparatus. An information processing apparatus comprising: a display control unit configured to display on the display unit which one of a plurality of operation modes including an illumination mode.   The information processing apparatus according to claim 13, wherein the plurality of operation modes include a standby mode. Search means for searching for a projection device that can communicate with the communication means,
The information processing apparatus according to claim 14, wherein the display control unit controls the display unit to display a list of operation modes of the projection apparatus for each projection apparatus searched by the search unit. An information processing apparatus control method capable of controlling a projection apparatus from the outside,
An acquisition step of acquiring information on the function of the projection apparatus from the projection apparatus via a communication unit;
A presenting step of presenting information related to the function of the projection device acquired by the acquiring step;
Control step for controlling to present whether the projection device is operating by the projection function or the illumination function based on the information about the function of the projection device acquired by the acquisition step And a control method comprising: An information processing apparatus control method capable of controlling a projection apparatus from the outside,
An acquisition step of acquiring information on the function of the projection apparatus from the projection apparatus via a communication unit;
Based on the information about the function of the projection device acquired in the acquisition step, the projection device is in a state of using a projection mode in which the projection function of the projection device is used and an illumination function of the projection device. A display control step of displaying on the display unit which one of a plurality of operation modes including an illumination mode is displayed.   The program for functioning a computer as each means of the information processing apparatus as described in any one of Claim 1 to 15.

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