JP2015176075A - Projection control device, projection control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projection control device, a projection control method and a program that can easily set so as to put information related to an object into an easy-to-view state in projecting the information.SOLUTION: A tablet terminal 1 (projection control device) is configured to: cause two or more visibility verification images to be projected onto a projection target or an area around the projection target; receive a setting of image data corresponding to a projection image selected from the two or more visibility verification images; cause a corresponding image to be projected on the basis of the received setting; and cause the two or more visibility verification images to be projected on the basis of two or more image data different in at least one of brightness, saturation, hue and luminance value in a prescribed area of the image data.

Description

  The present invention relates to a projection control apparatus, a projection control method, and a program.

  There is known an apparatus capable of simultaneously viewing an object and related information of the object within the same field of view. For example, Patent Document 1 discloses an apparatus that displays information such as wiring in a building.

  The apparatus disclosed in Patent Document 1 projects information in a wall surface toward a wall or door of a building. The information on the wall surface is information such as power wiring, telephone wiring, gas pipe wiring, and LAN cable wiring. It is said that the information in the wall surface can be visually listed by such a method, and the information in the wall surface can be obtained quickly and intuitively (paragraphs 0022, 0056, FIG. 9, etc.).

JP 2009-8905 A

  By the way, in the example disclosed in Patent Document 1, it is assumed that the object has a plane suitable for projection such as a wall surface or a door. However, there is a case where it is desired to project the related information in an easy-to-see state even on an object having an uneven surface (for example, a manhole or a bolt). Further, there are cases where it is desired to project related information in an easy-to-see state not only indoors, but also in environments such as outdoors and underground, and in environments with different weather and brightness. Furthermore, whether or not the related information to be projected is easy to see is also subjective in the first place, and since individual differences are likely to occur, the automatic adjustment function of the light amount of the projection apparatus may not be able to cope with it. Patent Document 1 is a projection technique premised on a bright room, and it is necessary to devise a technique for improving visibility in order to project on the daytime or night road surface outdoors, in a direction where shadows of standing trees are reflected.

  Therefore, the present invention has been made in view of any of the above-described problems, and can be easily set so as to be easily viewable by the user when projecting information related to the object. An object is to provide a projection control method and a program.

  In order to achieve the above-described object, the projection control apparatus according to the present invention can project the projection surface or the vicinity of the projection target (for example, when the projection target is a manhole cover, the manhole cover surface or the road surface on which the manhole is installed) In the projection control apparatus that projects the corresponding image based on the image data corresponding to the projection target), the first projection that projects two or more visibility confirmation images for allowing the user to confirm the visibility of the corresponding image. And a second projection for projecting the corresponding image based on the setting received by the receiving unit, the receiving unit receiving the setting of the image data of the corresponding image corresponding to the projection target from the two or more visibility confirmation images And the first projection means has two or more different at least one of brightness, saturation, hue, or luminance value in a predetermined area of the image data. Wherein the projecting the two or more visibility confirmation image based on the image data.

  In addition to the above-described configuration, the projection control apparatus according to claim 1, wherein the first projecting unit includes two or more image data based on two or more image data having different luminance values in a predetermined region of the image data. The two or more pieces of image data are the first image data in which the luminance value of the predetermined region is higher than the luminance values of other regions other than the predetermined region, and the other The second image data in which the luminance value of the area is higher than the luminance value of the predetermined area is included.

  In addition to any of the above-described configurations, the predetermined area preferably includes at least one of information indicating characters, figures, or symbols.

  In addition to any of the above-described configurations, it is preferable that the first projecting unit switches and projects two or more visibility confirmation images at a predetermined timing according to the transition of the projection time.

  Further, in addition to the above-described configuration, there is a storage unit that stores a plurality of pieces of image data associated with the projection target, and the first projection unit is an information identification arranged near the projection target or the projection target. Two or more image data having at least one of brightness, saturation, hue, or luminance value associated with the identification information read from the tag is extracted from the storage means, and two or more image data are extracted based on the extracted image data. It is preferable to project the visibility confirmation image on the projection target or in the vicinity of the projection target.

  In addition to the above-described configuration, based on the identification information read from the information identification tag for identifying the management target article with respect to the management server storing the management information of the area corresponding to the installation location of the management target article Management information acquisition means for acquiring the management information of the area including the area where the management target article is installed and storing it in the storage means, the management information of the area, and the management target article from the identification information read from the information identification tag And management information output means for outputting the extracted data to the first projection means, and the first projection means is output from the management information output means. It is preferable to project the data to be managed near the article to be managed or the article to be managed.

  In addition to any of the above-described configurations, the identification information recorded in the information identification tag attached to the projection target or the vicinity of the projection target, and time information when the identification information is read from the information identification tag, It is preferable to include history information recording means for recording environmental information including at least one of ambient temperature information, ambient weather information, and coordinate information.

  The projection control method of the present invention is a projection control method for projecting a corresponding image based on image data corresponding to the projection target on the projection target or in the vicinity of the projection target. The first projection step for projecting the above-described visibility confirmation image and the setting of the image data of the corresponding image corresponding to the projection target are received from the two or more visibility confirmation images projected by the first projection step. A receiving step and a second projecting step for projecting a corresponding image based on the image data set in the receiving step. In the first projecting step, the brightness, saturation, and hue in a predetermined region of the image data Alternatively, two or more visibility confirmation images are projected based on two or more image data having different luminance values.

  The program of the present invention is a program for causing a computer to function as a projection control device that projects a corresponding image based on image data corresponding to the projection target on or near the projection target. First projection means for projecting two or more visibility confirmation images for allowing the user to confirm the visibility, and setting of image data of a corresponding image corresponding to the projection target from the two or more visibility confirmation images. A receiving unit that functions as a second projecting unit that projects a corresponding image based on the setting received by the receiving unit, and the first projecting unit performs brightness, saturation, hue, or luminance in a predetermined region of the image data. This is for projecting two or more visibility confirmation images based on two or more image data having at least one of different values.

  ADVANTAGE OF THE INVENTION According to this invention, when projecting the information relevant to a target object, the projection control apparatus, the projection control method, and program which can be set easily so that it may be in a user-friendly state can be provided.

FIG. 1 is a diagram showing a usage example of a tablet terminal 1 which is an embodiment of the projection control apparatus of the present invention and a mapping apparatus 2 used together with the tablet terminal 1. FIG. 2 is a diagram for explaining the relationship between image data (hereinafter referred to as “original image data”) to be projected onto the manhole cover 3 and the projected visibility confirmation image. It is a figure for demonstrating original image data, (B) is a figure for demonstrating a visibility confirmation image. FIG. 3 is a block diagram showing a functional configuration of the tablet terminal 1 shown in FIG. FIG. 4 is a block diagram showing a functional configuration of the mapping apparatus 2 shown in FIG. FIG. 5 is an example of a flowchart showing the transition of the operation screen of the tablet terminal 1 shown in FIG. FIG. 6 is a flowchart illustrating an example of operations related to the projection control of the tablet terminal 1 illustrated in FIG. FIG. 7 is a diagram for explaining the work file operation function. FIG. 8 is a diagram for explaining a history file. FIG. 9 is a diagram showing an outline of the tablet terminal 1 </ b> A and the work support system 30.

  Hereinafter, a tablet terminal 1 according to an embodiment of a projection control apparatus of the present invention will be described with reference to the drawings. Note that the operation of the tablet terminal 1 will be described as an example of the projection control method of the present invention, and the program installed in the tablet terminal 1 will be described as an example of the program. However, the projection control apparatus, projection control method, and program of the present invention are not limited to the following embodiments.

  FIG. 1 is a diagram showing a usage example of a tablet terminal 1 which is an embodiment of the projection control apparatus of the present invention and a mapping apparatus 2 used together with the tablet terminal 1. As shown in FIG. 1, the operator can perform a predetermined inspection operation by operating the tablet terminal 1 and the mapping device 2, for example. In the example shown in FIG. 1, an article to be subjected to a predetermined inspection work (hereinafter referred to as “managed article”) is a manhole cover 3, and the manhole cover 3 includes an RFID tag (an example of an information identification tag) inside. Have. It is desirable that the RFID tag is incorporated in the form of being embedded inside the manhole cover 3 or installed inside from the viewpoint of durability or the like, but in such a case, the incorporated position is outside. It is preferable to display a mark (mark X in the case of FIG. 1) on the surface of the manhole cover 3 so that it can be visually recognized. In addition, the position of the mark X in the RFID tag embedded area and the position where the RFID tag is embedded are not necessarily the same position, and may be in a range where the RFID tag responds near the position of the mark X. When security is important, it is preferable that the place of the mark X and the place of the tag are not the same.

  When an RFID tag is detected from the manhole cover 3, a detection sound is output by the reader / writer unit 22 included in the mapping device 2. When the target manhole cover 3 is identified from the identification information detected by the reader / writer unit 22, a corresponding content screen is displayed on the display of the tablet terminal 1. Further, the same image as the content screen image displayed on the display of the tablet terminal 1 is also projected onto the manhole cover 3 from the small projection unit 23 of the mapping device 2. In FIG. 1, the drawing of the projected image itself is omitted for convenience.

  Here, the device for making the content screen projected on the manhole cover 3 easy to see for the user will be described first. FIG. 2 is a diagram for explaining the relationship between image data (hereinafter referred to as “original image data”) to be projected onto the manhole cover 3 and the projected visibility confirmation image. It is a figure for demonstrating original image data, (B) is a figure for demonstrating a visibility confirmation image.

  For example, two image data are used as the original image data. The two image data are used, for example, as test image data A and test image data B shown in FIG. Although the test image data is used in the example of FIG. 2, it may be projected using two images of content corresponding to the actual inspection work. In the test image data A, the character part “AB” is drawn in white, and the background part is drawn in black. On the other hand, the test image data B has the same configuration as the test image data A and the character portion “AB” and the background portion, but the character portion “AB” is drawn in black and the background portion is white. It is drawn. That is, the test image data A and the test image data B have a relationship in which the relationship between the luminance value of the character portion area and the luminance value of the background portion area is inverted.

  In FIG. 2A, the test image data A and the test image data B are projected in order with the passage of the projection times T1 and T2 under the control of the tablet terminal 1. In the example shown in FIG. 2A, projection based on the test image data A is performed at T1 which is the first half of the projection time, and projection based on the test image data B is performed at T2 which is the second half of the projection time. . With such a projection method, as shown in FIG. 2B, the appearance of the character part “AB” and the background part in the visibility confirmation image change according to the surrounding environment.

  In the example shown in FIG. 2B, since the brightness values of the manhole cover 3 and the surrounding area are low, it can be seen that the projection of T1 is easier to see for the operator as a result. However, this is merely an example, for example, when the projection at T1 is projected on a night road, for example, and the projection at T2 may be more easily seen under outdoor sunlight. As described above, when the tablet terminal 1 actually determines at the work site which of the projected images is easy to see for the worker, and selects the one that is easier for the worker to see, the tablet terminal 1 repeats the image according to the selected image data. Can be projected by the projection unit 23 of the mapping apparatus 2. Thereby, when projecting the information related to the manhole cover 3, it can be easily set so as to be easy to see for the user. Hereinafter, a specific configuration of each device as a premise of such a device will be described in detail.

  FIG. 3 is a block diagram showing a functional configuration of the tablet terminal 1 shown in FIG. The tablet terminal 1 is an example of a projection control device in the claims. As shown in FIG. 3, the tablet terminal 1 includes a projection control unit 10 (an example of a first projection unit and a second projection unit), an input receiving unit 11 (an example of a receiving unit), a projection setting unit 12, and a display unit. 13, a related information storage unit 14 (an example of a storage unit and a history information recording unit), and a communication unit 15.

  Although not shown, the hardware configuration of the tablet terminal 1 includes, for example, an application processor including a CPU, GPU, memory controller, peripheral device controller, display controller, WLAN (Wireless LAN), Bluetooth (registered trademark). , Wi-Fi (registered trademark), a wireless communication unit including a wireless communication module, a power source, an audio LSI, a RAM, a flash memory, a touch panel display, and the like. Note that these hardware configurations are examples, and hardware other than these may be included, or not all of these hardware configurations may be included.

  In the tablet terminal 1, the application processor stores a dedicated program (not shown) for executing projection control stored in the flash memory and loaded into the RAM to execute the projection control and other processes related to projection control. can do. Hereinafter, each part will be described.

  The projection control unit 10 is an example of a first projection unit and a second projection unit. The projection control unit 10 executes various controls on the image data that is the basis of the visibility confirmation image projected via the projection unit 23 of the mapping device 2. Note that the visibility confirmation image here may be based on the test pattern image data as described in FIG. 2, or based on the image data of the actual content projected at the time of inspection work or the like. Either can be used.

  For example, the projection control unit 10 projects two or more visibility confirmation images using two or more image data in which the luminance values are inverted with respect to a region (predetermined region) having a common configuration of image data. Can do. Typically, the projection control unit 10 stores two pieces of image data having the same configuration in the related information storage unit 14 in advance as described above with reference to FIG. At this timing, control for simply switching to the other image data is performed.

  The common area between the image data is preferably a content area including at least one of information indicating characters, graphics, or symbols. In the case of this example, the information that is desired to be obtained is a character or a figure, and the information that is not desired to be obtained is the background color. The background color becomes a noise for characters and figures. The two conflicting images in which the brightness value of the content area is set higher than the brightness value of the other area other than the content area, or the brightness value of the other area is set higher than the brightness value of the content area. More preferably, it is data. For example, when projecting onto a dark environment around the work area or when the projection target itself has a low luminance value, the luminance value of the content area is increased and the luminance value of the other area is decreased (eg, characters, etc.). The content area is white and the background is black), so that the content such as characters is easy to see. On the other hand, for example, when projecting onto an environment where the surrounding environment is bright or the projection object itself has a high luminance value, the luminance value of the content area is lowered as an example and the luminance value of the other area is increased. (Example: Content area such as characters is black and background is white), the content such as characters may be easier to see, or, as another example, projection with brightness higher than the brightness value of the projection target itself The projected area is reduced so that the content area is substantially brightly projected (for example, the content area such as characters and figures is white and the background is black).

  In addition, although two image data was demonstrated as an example, you may control to memorize | store 3 or more image data in the relevant-information memory | storage part 14, and to switch them sequentially. For example, when three image data D, E, and F are used, an area common to the image data D and the image data E and an area common to the image data E and the image data F are set to be different from each other. You may make it switch image data using the image data which inverted the luminance value for every pixel. Since this image data is prepared in advance, this control method can be easily realized only by the image data switching process. Alternatively, it can be easily realized by combining and editing the three image data as a series of image data.

  Further, inversion here means that when the luminance value is represented by a gradation between 0 and 255, the absolute value when the original luminance value is subtracted from 255 (for example, the original luminance value is 50). If present, the absolute value of the inverted luminance value indicates 255−50 = 205), but is not strictly limited to the absolute value when subtracting from 255, and is in a certain range (for example, about 10 to 20) Difference in luminance value). Further, although the inversion is performed on the premise of the luminance value for each pixel, the image data inverted based on the luminance values of a plurality of pixels constituting the common area (for example, the average value of the plurality of pixels) is stored as related information. Two or more may be stored in the unit 14.

  Further, the projection control unit 10 can also project a visibility confirmation image using a single image data with a process of inverting the luminance value at a predetermined timing. Unlike the above-described method, this is a projection based on image data after executing image processing for inverting the luminance value at a predetermined timing for one image. In the case of this method, since the luminance value inversion processing can be performed uniformly, it is not necessary to prepare a plurality of image data whose luminance values are inverted in advance.

  Furthermore, in the above-described projection control unit 10, the visibility confirmation image is changed by inverting the luminance value in an area where the configuration of two or more image data is common, but the image is not necessarily an area where the configuration is common. Alternatively, image data obtained by inverting the original luminance value in each unique area that does not have a common configuration may be used. Further, as long as the image data looks different from each other when projected onto the projection target, image data that is not in a relationship in which the luminance values of the two are inverted may be used. Further, in an area where the configuration of the image data is common, the visibility confirmation image is changed using two or more image data having different at least one element of brightness, saturation, and hue, or an image in which these elements are different You may make it change a projection image by projecting the visibility confirmation image which performed the process in the middle.

  The input receiving unit 11 is an example of a receiving unit in the claims. From the user who sees the visibility confirmation image projected by the control of the projection control unit 10, an instruction input as to which of the visibility confirmation images is to be projected based on the setting of the visibility confirmation image is received. In the tablet terminal 1 of the present embodiment, a touch panel display corresponds to the input receiving unit 11.

  The projection setting unit 12 sets image data when projecting the corresponding image based on the setting received by the input receiving unit 11. When the visibility confirmation image and the corresponding image are the same image data, the same image as the visibility confirmation image is again projected as the corresponding image.

  The display unit 13 displays a corresponding image based on the image data set by the projection setting unit 12. Note that the display unit 13 may not necessarily display an image based on the image data set by the projection setting unit 12. In the tablet terminal 1 of the present embodiment, a touch panel display corresponds to the display unit 13.

  The related information storage unit 14 is an example of a storage unit and a history information recording unit. In the related information storage unit 14, identification information recorded in the RFID tag and information (content) corresponding to the management target article to which the RFID tag is attached are recorded in association with each other. The related information storage unit 14 includes, for example, at least identification information read from the RFID tag and time information when the identification information is read, and any of ambient temperature information, ambient weather information, and coordinate information. Environmental information including at least one of them may be recorded. Note that the environment information detection method may be configured to detect the temperature or coordinate information by providing the tablet terminal 1 or the mapping device 2 with a sensor that can detect the weather information or altitude. Information may be obtained from a service provided on the Internet via an external device or a network. In the tablet terminal 1 of the present embodiment, for example, a flash memory as the nonvolatile memory corresponds to the related information storage unit 14.

  The communication unit 15 is a communication interface for communicating with a communication unit of the mapping device 2 described later. The communication unit 15 communicates with a communication interface for connecting to the Internet network (not shown) and other electronic devices (not shown) in addition to the communication with the communication unit 24 of the mapping device 2. A communication interface may be implemented. The communication unit 15 is preferably wireless, but may be wired.

  FIG. 4 is a block diagram showing a functional configuration of the mapping apparatus 2 shown in FIG. As shown in FIG. 4, the mapping device 2 includes an antenna unit 21, a reader / writer unit 22, a small projection unit 23 for projecting an image received from the tablet terminal 1, and a communication unit 24. In the block diagram of FIG. 4, the antenna unit 21 is preferably close to the mark X in order to reliably communicate with the RFID tag of the mark X in the RFID tag embedded area. Instead, the antenna unit 21 and the reader / writer unit 22 connected thereto may be separated from each other.

  The antenna unit 21 serves as an antenna booster that amplifies radio waves emitted from the reader / writer unit 22 and radio waves from the RFID tag.

  The reader / writer unit 22 is configured by, for example, a small reader / writer device that can read identification information from an RFID tag via the antenna unit 21 and write identification information to the RFID tag.

  The projection unit 23 is configured by, for example, a small projector.

  The communication unit 24 is a communication interface for communicating with the communication unit 15 of the tablet terminal 1. The communication unit 24 communicates with a communication interface for connecting to the Internet network (not shown) and other electronic devices (not shown) in addition to communication with the communication unit 15 of the tablet terminal 1. A communication interface may be implemented. The communication unit 24 is preferably wireless such as Bluetooth (registered trademark), but may be wired.

  FIG. 5 is an example of a flowchart showing the transition of the operation screen of the tablet terminal 1 shown in FIG. In the tablet terminal 1, when the dedicated program is activated, a series of processes described below is started (START). When the dedicated program is activated, an initial screen (not shown) that can select either the preparatory work selection screen or the ID detection screen is displayed. The preparatory work here refers to the work of setting and confirming in advance in order to perform the inspection work of the management object, etc., and the ID detection work is the management object actually in the field. It is an operation for detecting an RFID tag attached to itself or in the vicinity of an article to be managed.

  When the preparatory work is selected on the initial screen (Yes in step S11), the tablet terminal 1 displays a preparatory work selection screen (not shown) (step S12). On the preparatory work selection screen (not shown), the work to be executed in the preparatory stage before the worker performs a predetermined inspection work can be selected from a plurality of options. The tablet terminal 1 determines the preparatory work selected by the user by a touch operation or the like (step S13), and displays one of the screens A, B, and C corresponding to the selected preparatory work (step S14). , S15, S16). For example, when the preparatory work is divided into three types, screen A is a screen for work related to tag information setting such as RFID ID number registration and lock, and screen B connects (strings) the ID number and content. On the screen where the read ID information and its time information are stored as history information and file operations are performed, the screen C displays the radio wave output of the reader / writer unit 22, its radiation interval, or the sound effect of radiation (for example, a beep sound). It is a screen of work to set. Then, the tablet terminal 1 further determines whether or not the preparatory work has been completed (step S17). If the preparatory work has not been completed (no determination in step S17), the preparatory work selection screen (not shown) is displayed again. If it is displayed (step S12) and the preparatory work has been completed (Yes in step S17), this processing is all ended (END). Needless to say, the series of preparation operations may be performed in advance on another terminal and downloaded to the tablet terminal 1.

  On the other hand, when the preparation work is not selected on the initial screen (NO in step S11), the tablet terminal 1 displays an ID detection screen (not shown) (step S18). There are two types of ID detection: a continuous detection mode and a manual detection mode. The continuous detection mode is a convenient function when searching for the target managed article, such as when the mark X in the RFID tag embedded area is difficult to see, and continuously detects the radio waves for searching for the target managed article. Then, when you can search in the mode to radiate, radiation stops. On the other hand, the manual detection mode is suitable for inspection patrol work and is a mode in which radio waves for searching for an RFID tag are radiated only once. This is a convenient function because it can be confirmed each time the mark X is visually observed when the RFID tag manhole cover 3 is adjacent or lined up. In the manual detection mode, the user may set the number of launches in advance and emit the set number of radio waves.

  After displaying the ID detection screen, the tablet terminal 1 determines whether or not it is the continuous detection mode (step S19), and determines that the continuous detection mode is selected by the user (YES determination in step S19). In step S20, a continuous emission instruction is executed to the reader / writer unit 22. On the other hand, when the tablet terminal 1 determines that the continuous detection mode is not selected by the user (No determination in step S19), the tablet terminal 1 determines that the manual detection mode is selected, and issues a manual firing instruction to the reader / writer unit 22. Execute (Step S20).

When the tablet terminal 1 executes the firing instruction in step S20 or step S21 to the reader / writer unit 22, the tablet terminal 1 displays a standby screen (step S22).
Then, the tablet terminal 1 acquires the operation information of the reader / writer unit 22 and records it in the history file in order to record the detection time and the detection history of the reader / writer unit 22 (step S23). When the launch time is important, it is desirable that the time of the clock built in the reader / writer unit 22 is calibrated to the standard time. Details of the history file will be described later. Note that the tablet terminal 1 determines whether or not the upper limit of the capacity that can be recorded in the history file is exceeded (step S24), and when it is determined that the capacity is exceeded (Yes in step S24), writing to the history file is performed. The process is automatically stopped and the process proceeds to step S27 described later. On the other hand, if the tablet terminal 1 determines that the upper limit of the capacity that can be recorded in the history file is not exceeded (No determination in step S24), the tablet terminal 1 displays the corresponding content (step S26). The corresponding content is specified and displayed based on identification information such as an ID number included in the RFID tag acquired from the reader / writer unit 22. The tablet terminal 1 determines whether or not the detection operation has been completed (step S27). If the detection has not been completed (No in step S27), an ID detection screen (not shown) is displayed again (step S27). S18) When the detection work is completed (Yes in step S27), all the processes are terminated (END).

  If the ID number recorded on the RFID tag detected via the reader / writer unit 22 matches the registered ID set in advance in the tablet terminal 1 or the reader / writer unit 22, the tablet terminal 1 Switch to the corresponding content screen. However, this content screen is forcibly switched to the next content screen by interruption, but when the same registration ID is repeatedly detected after the second time, the interruption screening is temporarily ignored until the content screening ends. It is preferable to control as described above.

  When the detection processing instruction is executed, the specified time and the detected identification information are automatically recorded in the history file. This recording to the history file is also recorded when a content screening interrupt occurs, but it is preferable not to record if it is ignored. In such a case, when there is continuous detection of the same ID, it is recorded at the time of the first detection and when the screening of the content ends and the screening interrupt becomes valid again.

  FIG. 6 is a flowchart illustrating an example of operations related to the projection control of the tablet terminal 1 illustrated in FIG. The worker activates the dedicated software of the tablet terminal 1 to execute the dedicated program recorded in the flash memory and perform the following processing (START). As a premise of the following processing, the reader / writer unit 22 of the mapping device 2 reads the identification information from the RFID tag embedded in the manhole cover 3 via the antenna unit 21, and the identification information is stored in the mapping device 2. It is assumed that the tablet terminal 1 has received via the communication unit and the image data that is the corresponding content has been specified.

  STEP 31 (First Projection Step): The projection control unit 10 of the tablet terminal 1 sets 1 of image data having a relationship in which luminance values are inverted with respect to a common area between two or more original image data when projecting. Is transmitted to the mapping device 2 to project a visibility confirmation image via the projection unit 23 of the mapping device 2. Then, another image data is transmitted to the mapping device 2 at a predetermined timing (for example, 5 seconds after the projection) to switch the projected image. Note that, as described above, one image data that has been subjected to luminance value inversion processing at a predetermined timing may be transmitted to the mapping apparatus 2.

  STEP 32 (Reception Step): The input reception unit 11 of the tablet terminal 1 receives the image data setting from the user who has seen the visibility confirmation image projected in STEP 31. As a setting acceptance method, for example, thumbnail icons corresponding to the respective image data may be displayed on the touch screen of the tablet terminal 1 so as to be alternatively selected, or projection images having different settings are alternately displayed. It is also possible to repeatedly switch to display and to accept a setting when the user touches the screen of the tablet terminal 1 as a user instruction. The projection setting unit 12 of the tablet terminal 1 sets the one received by the input receiving unit 11 by any of the methods described above. This user setting may be valid for each content, or may be designed so that once set, it remains valid until the power is turned off or the setting is changed.

  STEP 33 (second projection step): The projection control unit 10 of the tablet terminal 1 projects an image based on the image data received and set in STEP 32, and ends the process (END).

(Main effects of the embodiment)
As described above, the tablet terminal 1 projects two or more visibility confirmation images for allowing the user to confirm the visibility of the corresponding image, and corresponds to the projection target from the two or more visibility confirmation images. The image data setting of the corresponding image to be received is received, and the corresponding image is projected based on the received setting. In addition, the tablet terminal 1 projects two or more visibility confirmation images based on two or more image data different in at least one of brightness, saturation, hue, or luminance value in a predetermined region of the image data. With these points, it is possible to present a projection image with projection patterns having at least two different appearances to the user. And the tablet terminal 1 can receive the setting of the image data to project according to the instruction | indication input from the user who saw the projected image, and can project a corresponding image based on the received setting. Therefore, since the operator only has to determine which is actually easier to see while viewing the projected image, the tablet terminal 1 can easily allow the user to select an easy-to-see projection form. Since the projection control method for the tablet terminal 1 and the program for executing the projection control installed in the tablet terminal 1 have the same configuration as the tablet terminal 1, the same effects as those described above are obtained. Can play.

  Further, the projection control unit 10 projects two or more visibility confirmation images based on two or more image data having different luminance values in a predetermined region of the image data. The first image data in which the luminance value of the region is higher than the luminance values of other regions other than the predetermined region, and the second image in which the luminance value of the other region is higher than the luminance value of the predetermined region Contains data. As a result, for example, when projecting onto a dark surrounding environment where the brightness of the projection target itself is low, the brightness value of the content area is high and the brightness value of the other area is low. The image data is easier to see than the second image data. On the other hand, for example, when projecting onto a bright environment around the work or a high brightness value of the projection target itself, the content area has a low brightness value and the other areas have a high brightness value. The image data of 2 is easier to see the contents such as characters than the first image data.

  The predetermined area of the image data includes at least one of information indicating characters, figures, or symbols. Thereby, when the information which shows especially a character, a figure, or a symbol is contained in a content area, the visibility of information can be improved more by control of the projection control part 10 mentioned above.

  Further, two or more visibility confirmation images are switched and projected at a predetermined timing according to the transition of the projection time. As a result, the user can make a judgment while actually confirming which is easier to see while viewing the projected images in which the projected images having different appearances are projected in order.

  In addition, the image processing apparatus includes a related information storage unit 14 (storage unit) that stores a plurality of image data associated with the projection target. The projection control unit 10 includes an RFID tag disposed near the projection target or the projection target. Two or more image data different in at least one of brightness, saturation, hue or luminance value associated with the read identification information are extracted from the related information storage unit 4, and two or more based on the extracted image data Are projected on the projection target or in the vicinity of the projection target. As a result, image data related to the projection object in front of the user can be easily extracted by simply reading the identification information from the RFID tag, and at least two visibility confirmations can be performed based on the extracted image data by the reader / writer unit 22. Images can be projected on the spot. Thereby, since the image data specified from the identification information read from the RFID tag is used as the visibility confirmation image, the user can confirm the appearance of the content projected during the actual work.

  The related information storage unit 14 includes at least time information when the identification information is read from the RFID tag and identification information that can uniquely identify the article to be managed. Environmental information including at least one of weather information and coordinate information is recorded. Thereby, it is possible to easily know the ambient temperature information, ambient weather information, and coordinate information at the time of work associated with the time when the identification information is read from the RFID tag. Furthermore, in inspection patrol work, etc., whether the worker has detected ID once at the site, whether it has been detected for the second time after a while, or whether another ID has been detected and returned and started over It is possible to improve the reliability and perform work analysis as actual data of

(Other embodiments)
As the projection control apparatus of the present invention, the tablet terminal 1 has been described as an example. However, the present invention is not limited to this, and any smartphone, mobile phone, notebook PC may be used as long as it has the projection control function described in FIG. It may be. Further, the projection unit 23 itself of the mapping device 2 may be provided with the projection control function described in FIG.

  The tablet terminal 1 may have the following functions in addition to the functions described above. For example, the tablet terminal 1 may have a tag operation function, a work file operation function, a history file creation function, a reader setting function, a server cooperation function, and the like. Hereinafter, it demonstrates in order.

(Tag operation function)
In the tablet terminal 1, the reader / writer unit 22 performs processing for the RFID tag, such as ID writing processing to the RFID tag, writing processing to the EPC area, writing processing of one individual manual of ID, automatic ID It is configured to have a tag operation function for instructing and executing the serial number batch writing process (initial value, batch N serial number writing using congestion control with setting of the tag number N) and the like. May be. In addition, it is preferable to allow the tag operation function to be limited to some privileged users or persons who can know the password, such as prompting for a password when using it, but anyone may be able to operate it. . The above-described tag operation function is configured so that the user can select and set, for example, in the screen A of step S14 in FIG.

(Work file operation function)
The tablet terminal 1 may be configured to have a work file operation function capable of creating an association list with an ID file and performing association work. FIG. 7 is a diagram for explaining the work file operation function. The work file has an ID file creation function, an association function, and a related list creation function. The ID file creation function is a function for creating a registration file 71 in which the ID number written in the RFID tag is associated with the item number set on the tablet terminal 1 side. The association function is a function that can set the association between the item number set on the tablet terminal 1 side of the ID file and the corresponding content file. The association process 72 includes a process in which the relationship between the item number and the association file is one-to-one and one-to-many. Examples of the associated files include files such as image data, moving image data, WORD (registered trademark), Excel (registered trademark), and the like. The association list function is a function for generating the list file 73 by the association process 72 with the registration file 71. These work file operation functions are preferably limited to some privileged users and those who can know the password, such as prompting for a password when using it, but anyone can operate it. May be. The above-described work file operation function is configured so that the user can select and set it in the B screen of step S15 in FIG. 5, for example.

(History file creation function)
The tablet terminal 1 may be configured to have a history file creation function that records various operations on the RFID tag with time. FIG. 8 is a diagram for explaining a history file. The history file is composed of, for example, a main file 81 and a backup file 82, and the file format is a flat file such as CSV. The main file 81 includes, for example, the detection time of the RFID tag, the ID number read from the RFID tag, the coordinate information (latitude and longitude information in the case of FIG. 8) acquired from the GPS function (not shown) of the tablet terminal 1, and the environment Information (temperature information in the case of FIG. 8) is recorded. The preliminary file 82 is configured so that the same items as the main file 81 can be recorded. These history files are set so that they cannot be deleted or edited. However, the history file may be deleted or edited by transferring some privileged users or passwords after transfer from the tablet terminal 1 to a management server (not shown). Further, when the history file is transferred to the management server, it may be possible to select whether to delete all records or continue recording. In the history file, when the data capacity of the main file 81 approaches the limit, a warning message or the like may be displayed on the screen and recording in the preliminary file 82 may be started. As a result, the safety of the already recorded history data can be ensured, and the trouble that the recording cannot be performed suddenly can be prevented. Note that when the storage capacity of the spare file 82 also becomes a limit, a message may be output to stop the RFID tag detection operation, or control may be performed so that the reader / writer unit 22 cannot be used. . In the continuous mode of ID detection, when the data capacity of the main file 81 or the backup file 82 becomes the limit, when the data is automatically overwritten from the beginning of the past recording file without being automatically stopped or when it becomes full It may be configured so that the automatic stop can be selected alternatively. The above-mentioned history file creation function is configured so that the user can select and set in the B screen of step S15 in FIG. 5, for example.

(Reader setting function)
The tablet terminal 1 may have a function that enables reader setting of the reader / writer unit 22. For example, the tablet terminal 1 has a function that can set the radio wave output value of the reader / writer unit 22, a date / time setting function in the reader / writer unit 22, a volume adjustment function at the time of ID detection, and a setting of presence / absence of vibration at the time of ID detection. A function, a function of specifying a detection radio wave emission time interval, and the like may be provided. The above-described reader setting function is configured so that the user can select and set it within the C screen of step S16 in FIG.

(Server linkage function)
In addition to the functions shown in FIG. 2, the tablet terminal 1 may be configured to be able to cooperate with the work support system 30 that can promote the improvement of convenience, the efficiency of work on site, the information sharing, and the like. FIG. 9 is a diagram showing an outline of the tablet terminal 1 </ b> A and the work support system 30. The work support system 30 includes a management server 31 and is configured to be able to communicate with the tablet terminal 1 </ b> A via the network 32. The network 32 is the Internet network or a dedicated communication network.

  The management server 31 stores a plurality of regional management information corresponding to the installation locations of the articles to be managed.

  The tablet terminal 1 </ b> A includes a management information acquisition unit 16 and a management information output unit 17. Note that the tablet terminal 1A of FIG. 9 also has the functions of the tablet terminal 1 shown in FIG. 2. For convenience of explanation, functions common to the tablet terminal 1 will be described using the same reference numerals. The illustration and description of the function to be performed are omitted.

  The management information acquisition unit 16 acquires the regional management information based on the identification information read from the RFID tag, with respect to the management server 31 that stores the regional management information corresponding to the installation location of the management target article.

  The management information output unit 17 extracts, from the related information storage unit 14, data related to the article to be managed from the management information of the area acquired by the management information acquisition unit 16 from the management server 31 and the identification information read from the RFID tag. At the same time, the extracted data is output to the projection control unit 10. Accordingly, the projection control unit 10 can project the image data output from the management information output unit 17 on the management target article to be projected or in the vicinity of the management target article.

  In such a configuration, the worker downloads the management information of the rough area where the work is performed from the management server 31 to the tablet terminal 1A immediately before the work, and the identification information read from the RFID tag at the place where the work is performed. From this, it is possible to specify a specific work place. Further, by projecting relevant information (for example, pipeline map data of the work place) specified from the management information of the area and the identification information read from the RFID tag onto the ground etc. before the work is performed, It is also possible to unify the intentions of related parties. The operator confirms the content displayed on the tablet terminal 1A and the situation at the site, and information related to the identification information read from the above-described RFID tag from the screen of the tablet terminal 1A, such as the situation at the site and the inspection result. And the input information can be uploaded to the management server 31 and registered as related information.

(Other variations)
Although the mapping apparatus 2 described above includes the reader / writer unit 22 and the projection unit 23, the projection control apparatus may include a part or all of them. Further, although the same image as the content screen image displayed on the display of the tablet terminal 1 is projected on the manhole cover 3, it may be projected near or around the place where the manhole cover is arranged. Further, the same image as that projected onto the manhole cover 3 may not be displayed on the display of the tablet terminal 1.

  Further, although the test image data A and the test image data B described in FIG. 2 are projected in order according to the temporal transition, they may be projected simultaneously. Further, although the test image data A and the test image data B described in FIG. 2 have been described as two different image data, they may be configured by one image data (image file). In the case of one image data, for example, it can be created by a so-called GIF animation in which each is created and displayed by a plurality of frames using a multi-image function of GIF (Graphics Interchange Format) format. Further, the data format itself is not limited to image data, but may be created by moving image data (for example, data in MPEG, AVI, MOV format, etc.).

  In the above-described embodiment, the projection control is mainly described from the viewpoint of improving the visibility of the projection image. However, it may be used to make the projection target itself easy to see. For example, it is conceivable to use image data aiming at a light-up effect such as a spotlight for a projection target. As an example of a spotlight, for example, for an inspection object at night, if it is the same shape as the shape of the target square or circular manhole, and a graphic image painted in white is projected onto the inspection object, Only the target inspection items can be lit up.

DESCRIPTION OF SYMBOLS 1 ... Tablet terminal (an example of a projection control apparatus), 3 ... Manhole cover (an example of a projection object, a management object article), 10 ... Projection means (an example of a 1st projection means, a 2nd projection means), 11 ... Input Reception unit (an example of reception unit), 14 ... related information storage unit (an example of storage unit, history information recording unit), 16 ... management information acquisition unit (an example of management information acquisition unit), 17 ... management information output unit (management An example of information output means), A ... Test image data (an example of first image data), B ... Test image data (an example of second image data), X ... Mark

Claims (9)

In a projection control apparatus that projects a corresponding image based on image data corresponding to a projection target on or near the projection target,
First projecting means for projecting two or more visibility confirmation images for allowing a user to confirm the visibility of the corresponding image;
Receiving means for receiving setting of image data of a corresponding image corresponding to the projection target from the two or more visibility confirmation images;
Second projecting means for projecting the corresponding image based on the setting accepted by the accepting means,
The first projection means includes
The projection control apparatus, wherein the two or more visibility confirmation images are projected based on two or more image data having at least one of brightness, saturation, hue, or luminance value in a predetermined region of the image data. The projection control device according to claim 1,
The first projection means includes
Projecting the two or more visibility confirmation images based on two or more image data having different luminance values in a predetermined region of the image data;
The two or more image data are:
The relationship between the first image data in which the luminance value of the predetermined region is higher than the luminance value of other regions other than the predetermined region, and the luminance value of the other region higher than the luminance value of the predetermined region And a second image data in the projection control apparatus. The projection control apparatus according to claim 1 or 2,
The projection control apparatus, wherein the predetermined area includes at least one of information indicating a character, a figure, or a symbol. The projection control device according to any one of claims 1 to 3,
The first projection means includes
An imaging control apparatus, wherein the two or more visibility confirmation images are switched and projected at a predetermined timing according to a transition of a projection time. A projection control apparatus according to any one of claims 1 to 4,
Storage means for storing a plurality of image data associated with the projection target;
The first projection means includes
Two or more pieces of image data different in at least one of brightness, saturation, hue, or luminance value associated with identification information read from the information identification tag arranged near the projection target or the projection target A projection control apparatus, wherein the projection control apparatus extracts from the storage means and projects the two or more visibility confirmation images on the projection target or in the vicinity of the projection target based on the extracted image data. A projection control apparatus according to any one of claims 1 to 5,
The management target article is installed based on the identification information read from the information identification tag for identifying the management target article with respect to the management server storing the management information of the area corresponding to the installation location of the management target article. Management information acquisition means for acquiring management information of the area including the area to be stored and storing it in the storage means;
Data related to the article to be managed is extracted from the storage means from the management information of the area and the identification information read from the information identification tag, and the extracted data is output to the first projection means. Management information output means,
The first projection means includes
A projection control apparatus, characterized in that data output from the management information output means is used as image data for projecting the management target article or the vicinity of the management target article. A projection control apparatus according to any one of claims 1 to 6,
At least the identification information recorded on the information identification tag attached to the projection target or the vicinity of the projection target, and time information when the identification information is read from the information identification tag, and ambient temperature information A projection control device comprising history information recording means for recording environmental information including at least one of ambient weather information and coordinate information. In a projection control method for projecting a corresponding image based on image data corresponding to a projection target on or near the projection target,
A first projecting step of projecting two or more visibility confirmation images for allowing a user to confirm the visibility of the corresponding image;
An accepting step of receiving setting of image data of a corresponding image corresponding to the projection target from the two or more visibility confirmation images projected by the first projecting step;
A second projecting step for projecting the corresponding image based on the image data set in the accepting step;
In the first projecting step,
A projection control method, wherein the two or more visibility confirmation images are projected based on two or more image data having at least one of brightness, saturation, hue, or luminance value in a predetermined region of the image data. A program for causing a computer to function as a projection control device that projects a corresponding image based on image data corresponding to a projection target on or near the projection target,
First projecting means for projecting two or more visibility confirmation images for allowing the computer to confirm the visibility of the corresponding image;
Receiving means for receiving setting of image data of a corresponding image corresponding to the projection target from the two or more visibility confirmation images;
Based on the setting received by the receiving means, function as a second projecting means for projecting the corresponding image,
The first projection means includes
A program for projecting the two or more visibility confirmation images based on two or more image data having at least one of brightness, saturation, hue, or luminance value in a predetermined region of the image data.