JP7061059B2 - Projector, control method and program - Google Patents

Description

The present invention relates to a technique for externally controlling a projection device having a projection function and a lighting function.

Patent Document 1 and Patent Document 3 disclose a device having a lighting function and a projection function. This makes it possible to project an image while functioning as lighting by installing it at a position similar to that of an existing lighting fixture, for example. Further, 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, the information processing device sends image data to the projection device, and the projection device projects the image data. The technology to be used is disclosed.

Japanese Unexamined Patent Publication No. 2012-186118 Japanese Unexamined Patent Publication No. 2009-296661 International Publication No. 2016/104191

It is conceivable that a projection device having the above-mentioned projection function and lighting function is externally controlled by an information processing device. In such a case, since the projection device is not directly operated, the user may not be able to easily recognize which function the projection device is operating. In such a case, there is a possibility of malfunction by connecting to a projection device that is operating with a function that should not be connected. For example, if the user connects the information processing device without recognizing the projection device operating in the lighting mode, the lighting function may be stopped and switched to the projection function against the intention of the user.

The present invention has been made in view of the above, and an object of the present invention is to enable an information processing device to present to a user which function the projection device is operating in a projection device having a projection function and a lighting function. Is.

In order to solve the above problems and achieve the object, the present invention is a projection device having a projection function and a lighting function, which is a communication means for communicating with the information processing device and the projection device in the information processing device. Is to transmit information about the function of the projection device to the information processing device by the communication means in order to indicate to the user whether the information is operating by the projection function or the lighting function. The control means has control means for controlling the information processing apparatus, and the control means controls the information processing apparatus to transmit information indicating an operation mode of the projection apparatus as information regarding a function of the projection apparatus to the information processing apparatus . ..

According to the present invention, in a projection device having a projection function and a lighting function , the information processing device can present to the user which function the projection device is operating .

A system configuration diagram including a smartphone and a projector of this embodiment. The block diagram which shows the internal structure of the smartphone and the projector of this embodiment. The transition diagram of the operation mode of the projector of this embodiment. The flowchart which shows the connection process of the smartphone and the projector of Embodiment 1. FIG. The figure which illustrates the UI screen at the time of connection of the smartphone and a projector of Embodiment 1. FIG. The figure which illustrates the communication data at the time of connection of the smartphone and a projector of Embodiment 1. FIG. The figure which illustrates the UI screen at the time of connection of the smartphone and a projector of Embodiment 1. FIG. The flowchart which shows the display process of the UI screen at the time of connection of the smartphone of Embodiment 2 and a projector. The figure which illustrates the UI screen at the time of connection of the smartphone of Embodiment 2 and a projector. The flowchart which shows the connection process of the smartphone and the projector of Embodiment 3. The figure which illustrates the UI screen at the time of connection of the smartphone of Embodiment 3 and a projector.

Hereinafter, embodiments for carrying out the present invention will be described in detail. The embodiments described below are examples for realizing the present invention, and should be appropriately modified or modified depending on the configuration of the apparatus to which the present invention is applied and various conditions, and the present invention is described below. Is not limited to the embodiment of the above. In addition, a part of each embodiment described later may be appropriately combined and configured.

[Embodiment 1] Hereinafter, the first embodiment will be described.

FIG. 1 is a system configuration diagram of the present embodiment. In the system of the present embodiment, the projector 200 having the projection function and the lighting function as the projection device can be remotely controlled from the outside by the application of the smartphone 100 as the information processing device. The projector 200 can be switched between a projection mode corresponding to the projection function and a lighting mode corresponding to the lighting function by the application of the smartphone 100.

In this embodiment, an example in which the projector 200 has a projection function and a lighting function will be described. However, the projector 200 is not limited to the lighting function, but has a function of outputting sound by a speaker or the like, a circulator function of convection of air by a fan or the like, and an air conditioner. It may have an air conditioning function for adjusting temperature and humidity, an air purifying function for purifying air, or a combination of these functions. Further, as the lighting function, not only a general lighting function such as a spotlight but also various lightings can be applied.

Although FIG. 1 shows one smartphone 100 and one projector 200, it is also possible to configure a network with one smartphone 100 and a plurality of projectors 200.

In the following, the projectors 200 in which a plurality of smartphones 100 exist in the same network are searched, and the search results are presented to the user. Then, an embodiment in which a session is established with one projector selected by the user according to a predetermined protocol, image data is transferred, and the image data is projected by the projector will be described.

<Explanation of Smartphone> The configuration and function of the smartphone 100 of the present embodiment will be described with reference to FIG. 2 (a).

In FIG. 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 image pickup unit 108, a battery 109, a power supply unit 110, and a power input unit. It is equipped with 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 for temporarily storing a control program and data as a work memory. Further, the RAM 102 is used as a buffer memory for temporarily holding the image data captured by the image pickup unit 108, which will be described later, and as an image display memory of the display unit 106, which will be described later. The ROM 103 is a non-volatile memory that stores a control program that describes the processing procedure of the control unit 101. The control program referred to here is a program for executing the processing of the flowchart described later. The control unit 101 realizes the functions of the application described later by executing the control program stored in the ROM 103. Instead of the control unit 101 controlling the entire device, a plurality of hardware may share the processing to control the entire device. This also applies to the other hardware of the projector 200 described below, and the configuration may be such that a plurality of hardware share the processing.

Further, the ROM 103 stores an OS (operating system), which is basic software executed by the control unit 101, and an application that realizes an applied function in cooperation with the OS. The communication process of the smartphone 100 in the present embodiment is realized by reading the software provided by the application. It is assumed that the application has software for using the basic functions of the OS installed in the smartphone 100. 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 the present 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 this embodiment, the communication unit 104 includes an interface for communicating with an external device via a wireless LAN in accordance with the standard of 802.11. The control unit 101 realizes wireless communication with an external device by controlling the communication unit 104. The communication method is not limited to the wireless LAN, and may include, for example, an infrared communication interface and a wireless communication interface such as WirelessUSB.

The operation unit 105 includes various switches and buttons for receiving various operations from the user, and an operation member such as a touch panel integrally configured with the 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 a running application when the user presses it, and a display unit 106 described later displays a home screen on which other applications can be selected. be able to.

The display unit 106 displays a captured image and displays 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 image icon for operation, and the like to the display unit 106.

The image pickup unit 108 includes a lens group including a zoom lens and a focus lens, and a shutter having an aperture function. Further, the image pickup unit 108 includes an image pickup element composed of a CCD, a CMOS element, or the like that converts a subject image into an electric signal, and an A / D converter that converts an analog image signal output from the image pickup element into a digital signal. Under the control of the control unit 101, the image pickup unit 108 converts the subject image light imaged by the lens included in the image pickup unit 108 into an electric signal by the image pickup element, performs noise reduction processing, and is composed of a digital signal. Output image data.

The battery 109 is composed of 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 transmits power to a 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 the supply of electric power transmitted from the battery 109 and the power input unit 111, which will be described later, to each block of the smartphone 100. The power input unit 111 receives electric power from a commercial (AC) power source or the like, rectifies it to a predetermined voltage, and sends it to the power supply unit 110.

In the present embodiment, a smartphone, which is a kind of mobile phone, is exemplified as an information processing device, 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 the present embodiment will be described.

When the power-on operation signal is input via the operation unit 105 by the user operation, the control unit 101 controls the power supply unit 110 so as to supply electric 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 for each block according to the control program. In the initialization process, the control unit 101 controls the display control unit 107 to cause the display unit 106 to display the image data of the standby screen.

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

[Explanation of the projector] Next, the configuration and function of the projector 200 of the present embodiment will be described with reference to FIG. 2 (b).

In FIG. 2B, the projector 200 has 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 image pickup unit 208, a battery 209, a power supply unit 210, and a power input unit. It is equipped with 211. Since the basic functions of each of the above blocks are the same as those of the smartphone 100, detailed description thereof will be omitted.

The communication unit 204 receives control signals and video data from an external device such as a 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 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 image pickup unit 208 takes an image of a screen (not shown).

Further, the projector 200 has an image processing unit 212, a liquid crystal unit 221, a liquid crystal drive 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 change processing such as the number of frames, the number of pixels, and the image shape 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. 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 composition processing, geometric correction processing (keystone correction processing, curved surface correction processing), and panel correction.

The liquid crystal unit 221 has three liquid crystal panels to which any of R, G, and B liquid crystal elements are assigned, and light is transmitted to each liquid crystal panel to form an image. The liquid crystal drive unit 222 controls the voltage applied to the liquid crystal of the pixels 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 controls the transmittance of the liquid crystal element. To adjust.

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

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

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

The memory I / F227 is an interface to which a memory device such as a USB memory is connected to read / write data. A pointing device, keyboard, or the like 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 releases heat generated inside the projector 200 to the outside to cool the projector 200.

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

The control unit 201 and each of the other blocks are connected by an internal bus 234, and it is possible to access each block by exchanging control signals and data.

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

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

When the power-on operation signal is input via the operation unit 205 by the user operation, the control unit 201 controls the power supply unit 210 so as to supply electric power to each block, and puts the projector 200 in the standby mode (standby state). To transition to. In the standby mode, the infrared receiving unit 232 and the communication unit 204 are in an operable state, and the projector 200 is in a state in which an operation signal can be received from an external device such as a smartphone 100.

Next, the control unit 201 controls the power supply unit 210 to supply electric power to the block required for the projection operation when an operation signal transitioning to the projection mode is input via the operation unit 205 by a user operation. Then, after the electric power is applied 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 controls the projection control unit 226 based on the focus information or the like obtained by the focus detection unit 233 to adjust the projection state on the projection unit 225. The projection control unit 226 drives the zoom lens and the focus lens of the projection unit 225 to control the projection light to be imaged on a screen (not shown). In this way, the preparatory operation for projection is completed.

Further, in the illumination mode, the projector 200 can operate as lighting by controlling the light diffusion unit of the projection unit 225 by the projection control unit 226 and projecting and diffusing white light. The method of illumination is not limited to this method, and for example, a white image may be projected to brighten the projection surface as a result.

Further, the control unit 201 sends a control signal so as to perform end processing to each block when the power off operation signal is input via the operation unit 205. Then, when the preparation for termination is completed, the power supply unit 210 sequentially terminates the power supply to the blocks other than the blocks to 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 with reference to the state transition diagram of FIG. As described above, when the power is turned on, the projector 200 transitions to the standby mode of ST301. Next, when the operation signal is input so as to transition to the projection mode, the transition to the projection mode of ST302 is performed. Further, in the standby mode of ST301, when an operation signal is input so as to transition to the illumination mode, the transition to the illumination mode of ST303 is performed. The illumination mode and the projection mode can be switched back and forth between the modes, and both can be changed by user operation. Further, in the projection mode or the illumination mode, when an operation signal for turning off the power is input, the mode shifts to the standby mode. The above-mentioned operation signal can be input by the user directly operating the projector 200 via the operation unit 205, or the user operates the smartphone 100 and transmits a signal based on the operation to the communication unit. It can also be input by receiving the 204.

As described above, the projector 200 of the present embodiment can transition to any of the standby mode, the projection mode, and the illumination mode according to the user operation. Upon transition 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 into a diffusing state.

<UI screen display control> Next, the UI screen display control by the smartphone 100 of the present embodiment will be described with reference to FIGS. 4 to 6.

Hereinafter, the respective sequences of the smartphone 100 and the projector 200 will be described when the smartphone 100 searches for a plurality of projectors existing in the same network as the smartphone 100. The configurations of the smartphone 100 and the projector 200 of this embodiment are the same as those in FIG.

FIGS. 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 communication method agreed in advance.

The process of FIG. 4A is realized by the control unit 101 of the smartphone 100 executing the control program provided by the application and controlling each unit of the smartphone 100. It is assumed that the application has a control program for using the basic functions of the OS installed in the smartphone 100. 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, using FIG. 4A, the processing of the control unit 101 when the smartphone 100 searches for the projector 200 will be described. 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 the search of the smartphone 100, (a) is a UI screen before the projector search, and (b) is a UI screen in which the projectors detected by the projector search are displayed in a list. Shows. In FIG. 5, 5001 is a name display column, 5002 is a mode display column indicating an operation mode, and 5003 is a button icon for instructing the user to start a search. When the user touches the search button 5003, the control unit 101 starts the search process 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 the search result.

In S401, an interrupt is generated 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 it can communicate by adding information such as UDP (User Datagram Protocol). The control unit 101 may specify a broadcast address as a transmission destination of the search command, set the IP address, port number, etc. of the smartphone 100 in the payload unit, and deliver the search request to devices in the same subnet.

In S402, the control unit 101 waits for a response to the search from the projector 200. Here, the processing up to S405, which will be described later, is looped, and the end condition is until the user presses the search cancel button (not shown) displayed after the start of the search. When the control unit 101 detects that the response has been received via the communication unit 104, the process proceeds to S403.

In S403, 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 S404, the control unit 101 waits for a response to the status information request command from the projector 200. When the control unit 101 receives the response via the communication unit 104, the process proceeds to S405.

In S405, the control unit 101 reads out the name of the projector 200 and the operation mode information (described later) from the state information received via the communication unit 104, and writes them out to the RAM 102. The control unit 101 reads out the 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 so as to draw the read image icon data and the name of the projector 200 at a predetermined position.

Next, using FIG. 4B, the sequence of the control unit 201 when the projector 200 receives the search command will be described.

The process of 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 S411, the control unit 201 is in the search command reception waiting state. In this embodiment, it is assumed that the projector 200 has transitioned to the command waiting state when the projector 200 has transitioned to the standby mode. When the control unit 201 receives the search command via the communication unit 204, the process proceeds to S412.

In S412, the control unit 201 writes the received data to the RAM 202, sets the IP address, port number, etc. of the transmission source included in the received data as the reply destination, and sends the response information to the effect that it exists via the communication unit 204. Reply to the smartphone 100.

In S413, the control unit 201 is in the state of waiting for the request command of the state information, and when the request command is received, the process proceeds to S414.

In S414, the control unit 201 transmits the data shown in FIG. 6 to the smartphone 100 via the communication unit 204. FIG. 6 illustrates the structure of the data transmitted to the smartphone 100 in S414. D600 shows the data structure in UDP, and D601 to D604 show the state information of the projector 200 and the like. D601 is information indicating the model type, and is, for example, a data unit capable of indicating that there is a projection function and a lighting function, only a projection function, and only a lighting function. D602 is information indicating an operation mode, and is, for example, a data unit capable of indicating a projection mode, a lighting mode, a standby mode, and the like. D603 is information indicating an operating state, and is a data unit capable of indicating a more detailed state in each operation mode such as projection on, projection off, illumination on, and illumination off. The projection on is a state in which image data is projected in the projection mode, and the illumination on is a state in which the light emitted from the light source 223 is diffused. Further, the projection off and the illumination off are states in which the light source is controlled in the projection mode and the illumination mode, respectively, and the irradiation of light is stopped. D604 is information indicating the name of the projector 200, and is a data unit capable of indicating an individual name preset by the user. In addition to the above-mentioned data structure, the control unit 201 of the projector 200 reads various information from the RAM 202 and the ROM 203, sets the data, and transmits the data to the smartphone 100 via the communication unit 204.

Next, a display example of the UI screen after the search by the smartphone 100 will be described with reference to FIG. 7.

First, the common parts of FIGS. 7A to 7C will be described. 7001 in FIG. 7 is a name display column, 7002 is a mode display column indicating an operation mode, and 7003 is a button icon for instructing the user to start a search. The name information transmitted from the projector 200 is displayed in the name display field 7001. Image icons corresponding to each operation mode are displayed in the mode display field 7002. FIG. 7 shows a display example when six projectors 200A to 200F are searched. When the name "AAA" and the operation mode "illumination" are received from the projector 200A, the image icon 7002a corresponding to the "illumination" 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 the "projection" is displayed in the mode display field 7002. When the name "FFF" and the operation mode "standby" are received from the projector 200F, the image icon 7002c corresponding to the "standby" is displayed in the mode display field 7002. The search for the projector by the smartphone 100 described here is performed according to the search start instruction by the user. For example, while the application of the smartphone 100 is running, the program automatically performs a periodic search, and the result is appropriately displayed on the UI screen. It may be reflected in.

Here, the display form of the UI screen to be displayed on the display unit 106 of the smartphone 100 according to the information received from the projector 200 will be described.

FIG. 7A is an example of a UI screen that reflects information indicating an operating state corresponding to D603 of FIG. In the mode display field 7002, the image icons corresponding to the operation modes of the names "CCC" and "DDD" are identifiablely displayed in a grayed out state, and the operating states of the projectors 200C and 200D are projected off and illuminated off. It is presenting that there is. Since the image icons corresponding to the operation modes of the names "AAA" and "BBB" are not grayed out, it is shown that the operating states of the projectors 200A and 200B are projection on and illumination on. This UI screen alternately presents which of the operating states, the state in which each projector is operating by the projection function and the state in which each projector is operating by the lighting function, is presented.

FIG. 7B is an example of a UI screen that reflects information indicating the model type corresponding to D601 in FIG. In the mode display field 7002, the image icon 7002a shows that it has a lighting function, and the image icon 7002b shows that it has a projection function. In the mode display field 7002, since the model types of the projectors 200A and 200B having the names "AAA" and "BBB" are "projection function and lighting function", the image icons 7002a and 7002b are displayed in the mode display field 7002. Will be done. If the operation mode is not "projection mode", the image icon 7002b corresponding to the projection mode is grayed out, and if it is not "illumination mode", the image icon 7002a corresponding to the illumination mode is grayed out. Is displayed in.

FIG. 7C is an example of a UI screen in which the projectors searched based on the information indicating the operation mode corresponding to D602 in FIG. 6 are sorted and rearranged for each operation mode. In FIG. 7C, the projection mode, the illumination mode, and the standby mode are sorted in this order from the beginning. In the mode display column 7002, the image icons 7002b corresponding to the projection mode are presented for the projectors 200A, 200D and 200E having the names "AAA", "DDD" and "EEE". Further, the projectors 200B and 200C having the names "BBB" and "CCC" are presented with the image icon 7002a corresponding to the illumination mode. Further, the projector 200F having the name "FFF" is presented with an image icon 7002c corresponding to the standby mode.

The screens shown in FIGS. 7 (a) to 7 (c) may be switchable by a user operation, or at least one screen may be adopted. Further, the items displayed in FIGS. 7A to 7C may be combined and displayed on one screen. Also, based on the connection history with the projector, the date and time of connection, the number of connections, etc., the projectors that are most recently connected are sorted and presented, or the projectors that are connected most often are sorted and presented in a predetermined order. You may.

Although not shown, the projector in a specific operation mode (for example, the illumination mode) may be hidden in order to avoid connection to the projector in an unintended operation mode. In this case, the UI screen of FIG. 7 may be controlled so as to be excluded from the projector candidates that can be selected by the user. 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 to project the image data. Can be done.

As described above, by controlling the display of the UI screen according to the functional 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 the unintended operation mode. It is possible to reduce the inconvenience that occurs.

[Embodiment 2] Next, the second embodiment will be described.

In the first embodiment described above, an example of displaying the operating state of the projector by an image icon corresponding to the operating mode has been described. However, in the present embodiment, the operating mode of the projector is displayed on the UI screen after the user selects the projector to be connected. An example of notifying will be described. In the following, the differences from the first embodiment will be mainly described.

FIG. 8 shows a sequence of UI screen display control processing 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 the projector to be connected to, the process is started.

In S801, when the control unit 101 receives an operation signal for selecting a projector via the operation unit 105 by a user operation to the display unit 106, the control unit 101 advances the processing to S802.

In S802, the control unit 101 reads out the 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 to the RAM 102 by the control unit 101 at the timing received from the communication unit 104 during the projector search. When the control unit 101 determines that the information indicating the operation mode is the illumination mode, the control unit 101 advances the process to S803.

In S803, the control unit 101 controls the display control unit 107 to read the UI data 9004 for prompting the user to confirm the connection as shown in FIG. 9 from the ROM 103 and display it on the display unit 106 as a UI screen. On the UI screen shown in FIG. 9, UI data 9004 including a character string and an image icon for reconfirming the connection to the user is displayed, and "Yes" and "No" options are presented. When "Yes" is clicked by the user, the control unit 101 starts the connection process to the selected projector, the projector 200 shifts 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 clicked, the connection process may not be performed and the UI screen display state as a result of the re-search may be entered. When the control unit 101 determines 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 shown in FIG. 9 and starts the connection process.

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

[Embodiment 3] Hereinafter, the third embodiment will be described.

In the second embodiment, an example of displaying a UI screen prompting the user for confirmation according to the operation mode of the selected projector has been described, but in the present embodiment, an example of displaying the UI screen even after connection to notify the operation mode. To explain. In the following, the differences from the first embodiment will be mainly described.

The configurations of the smartphone 100 and the projector 200 of this 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 to the display unit 106, the process proceeds to S1002.

In S1002, the control unit 101 starts the connection process to the selected project and the transmission of the image data via the communication unit 104.

In S1003, the control unit 101 reads the image icon data of the connection cancellation from the ROM 103 and controls the display control unit 107 so that the UI screen is displayed on the display unit 106. FIG. 11 shows a display example of the UI screen for canceling the connection, and presents the option 1115 of “cancel connection”.

In S1004, the control unit 101 sets a timer at a predetermined time, and executes an interrupt permission process in an interrupt control block (not shown) in the control unit. This interrupt enable process will be described with reference to FIG. 10 (b). When the interrupt enable processing is started, a signal is output from the internal interrupt control block. In S1010, the control unit 101 determines whether or not the predetermined time has elapsed by the timer 228, skips the processing of S1011 and S1012, and proceeds to S1005 until the predetermined time elapses. In S1011, the control unit 101 controls the display control unit 107 so as to erase the UI screen that accepts the connection cancellation. In S1012, the control unit 101 outputs an interrupt prohibition signal to the internal interrupt control block, and proceeds to process in S1005.

Returning to FIG. 10A, in S1005, the control unit 101 determines whether or not the operation signal for canceling the connection has been input via the operation unit 105 by the user operation. If the control unit 101 determines that the connection cancellation has been touched, the process proceeds to S1006, and if not, the process proceeds to S1007.

In S1006, the control unit 101 transmits a command for transitioning to the illumination mode via the communication unit 104.

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

In S1008, the control unit 101 transmits an illuminance return command via the communication unit 104. In S1009, the control unit 101 stops the transfer of image data via the communication unit 104, and also transmits a connection disconnection command to end the process. In S1008, the smartphone 100 controls the projector 200 to return the illuminance, but the projector 200 may return 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 S1009, the control unit 101 stops the transfer of image data via the communication unit 104, and also transmits a connection disconnection command to end the process.

Next, using FIG. 10C, a sequence of control processing by the control unit 201 of the projector after the user selects a projector to be connected via the UI screen is shown.

In S1101, the control unit 201 establishes a connection with the smartphone 100 in response to receiving a connection establishment request from the smartphone 100.

In S1102, the control unit 201 writes the parameters related to the illuminance currently set to 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 so as to output the projected light from the projection unit 225, and changes from the illumination mode to the projection mode. Change the operating status to.

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

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

In S1107, the control unit 201 sends a control signal necessary for transitioning to the lighting mode to each block of the smartphone 100, and then returns to the command reception waiting state of S1105.

In S1108, the control unit 201 determines the command type based on the data received from the smartphone 100, proceeds to S1109 if it is determined to be an illuminance recovery command, and proceeds to S1110 if it is not determined. Proceed.

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

In S1110, the control unit 201 determines the command type based on the data received from the smartphone 100, proceeds to S1111 if it is determined to be a connection disconnection command, and if not, enters the command reception waiting state of S1105. return.

In S1111, the control unit 201 controls the communication unit 204 to perform a process of disconnecting from 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 lighting mode, it is possible to suppress the effect of switching from the lighting mode to the projection mode at the earliest possible stage. Become.

[Other embodiments]
The present invention supplies a program that realizes one or more functions of the above-described embodiment to a system or device via a network or storage medium, and one or more processors in the computer of the system or device reads and executes the program. It can also be realized by the processing to be performed. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

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

Claims (10)

It is a projection device with a projection function and a lighting function.
Communication means to communicate with the information processing device,
In order to show the user whether the projection device is operating by the projection function or the lighting function in the information processing device, the projection device is attached to the information processing device by the communication means. It has a control means, which controls to transmit information about a function having, and has.
The control means is a projection device, characterized in that information indicating an operation mode of the projection device is controlled to be transmitted to the information processing device by the communication means as information regarding a function of the projection device. It is a projection device with a projection function and a lighting function.
Communication means to communicate with the information processing device,
Any of a plurality of operation modes including a projection mode in which the projection device is in a state of using the projection function of the projection device and a lighting mode in which the projection device is in a state of using the illumination function of the projection device in the information processing device. Having a control means for controlling the communication means to transmit information about a function of the projection device to the information processing device in order to display the operation mode on the display means of the information processing device. A projection device featuring. The second aspect of claim 2 , wherein the control means controls to transmit information indicating an operation mode of the projection device to the information processing device by the communication means as information regarding a function of the projection device. Projection device. It has an operating means that accepts user operations.
The one according to any one of claims 1 to 3 , wherein the control means controls so that the operation mode of the projection device changes based on the operation signal input via the operation means. Projection device. The projection device according to any one of claims 1 to 4 , wherein the operation mode of the projection device can be switched by the information processing device. Any of claims 1 to 5, wherein the control means controls to transmit information indicating lighting on or lighting off as information regarding a function of the projection device to the information processing device by the communication means. The projection device according to item 1. The control means is characterized in that, as information about a function of the projection device, information indicating that the projection device has a lighting function is controlled to be transmitted to the information processing device by the communication means. 6. The projection device according to any one of 6. It is a control method of a projection device having a projection function and a lighting function.
The projection device is
Has a communication means to communicate with the information processing device,
The control method is
In order to show the user whether the projection device is operating by the projection function or the lighting function in the information processing device, the projection device is attached to the information processing device by the communication means. Has a step to send information about the features it has,
In the step, the control method is characterized in that information indicating an operation mode of the projection device is transmitted to the information processing device by the communication means as information regarding the function of the projection device . It is a control method of a projection device having a projection function and a lighting function.
The projection device is
Has a communication means to communicate with the information processing device,
The control method is
Any of a plurality of operation modes including a projection mode in which the projection device is in a state of using the projection function of the projection device and a lighting mode in which the projection device is in a state of using the illumination function of the projection device in the information processing device. A control method comprising a step of transmitting information about a function of the projection device to the information processing device by the communication means in order to display the operation mode on the display means of the information processing device. A program for causing a computer to perform the steps of the control method according to claim 8 or 9.

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