JP2013080088A - Projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector capable of automatically changing various setting to reduce labor and time when constructing a multi-projection system.SOLUTION: The projector includes a first projector and a second projector each of which includes azimuth measurement means for measuring a projection azimuth, positional relation confirmation means for confirming the position with another projector and communication means capable of communicating with another projector. Each of the first projector and the second projector determines whether or not the projector itself is an element for configuring the multi-projection according to the azimuth measurement result of the first projector, the azimuth measurement result of the second projector and the positional relation confirmation result between the first projector and the second projector and automatically changes the setting of the projector itself.

Description

  The present invention relates to a projection system using a plurality of projectors and a projector.

  In recent years, a projector that enlarges and displays an image on a screen or the like is used as a large-screen display device. Recently, a projection system using a plurality of projectors, such as a multi-projection system capable of displaying a larger screen and a higher quality image, has attracted attention.

  When it is desired to construct such a projection system, it is necessary to change and adjust various settings such as brightness / contrast / sharpness / gamma / color / lamp brightness for each projector.

  For example, in Patent Document 1, in a multi-projection system, an adjustment pattern is projected from each projector, captured by an imaging unit, and image alignment, color alignment, brightness adjustment, etc. are performed by an adjustment unit based on captured image data. A technique for performing adjustment and correction is disclosed. Further, in Patent Document 2, in a multi-projection system, a common setting menu image is displayed from at least one of the projectors constituting the multi-projection system in accordance with the operation of the operation means, and various settings of a plurality of projectors are set as if they are one projector. A technique that can be configured to perform the above-described setting is disclosed.

Japanese Patent Laid-Open No. 2001-251651 JP 2008-216805 A

  In the conventional technique disclosed in the above-mentioned patent document, when the projection system is constructed once and is left installed, various settings are changed and adjusted for each projector only once. Just do it.

  However, if it is not such a use form, every time a multi-projection system is constructed, it is necessary to change and adjust various settings for each projector.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a projector that can automatically change various settings in order to reduce time and labor when constructing a multi-projection system.

  In order to achieve the above object, the present invention includes a first projector and a second projector, wherein the first projector, the second projector include azimuth measuring means for measuring a projection azimuth, A projector comprising: a positional relationship confirmation means for confirming a position with the projector; and a communication means capable of communicating with the other projector, wherein the first projector and the second projector are azimuthed by the azimuth measuring means. And the communication means exchange the orientation measurement results, and the first projector and the second projector determine the positional relation of the other projector by the positional relation confirmation means, thereby According to the orientation measurement result of the projector and the second projector and the positional relationship confirmation result, the first The projector and the second projector each own projector is determined whether elements or not constituting the multi-projection, and wherein changing the settings of its own projector automatically.

  According to the present invention, the first projector and the second projector measure the projection azimuth by the azimuth measuring means. The second projector transmits the direction measurement result to the first projector by communication means. The first projector confirms the positional relationship with the second projector by the position confirmation means. Whether the first projector is multi-projection according to the orientation measurement result of the first projector, the orientation measurement result of the second projector, and the positional relationship confirmation result between the first projector and the second projector. Judging. The first projector automatically changes various settings in accordance with the determination result of whether or not multi-projection is performed.

  Further, the first projector transmits the azimuth measurement result to the second projector through the communication means. The second projector confirms the positional relationship with the first projector by the position confirmation means. Whether the second projector is multi-projection according to the orientation measurement result of the second projector, the orientation measurement result of the first projector, and the positional relationship confirmation result between the second projector and the first projector. Judging. The second projector automatically changes various settings in accordance with the determination result of whether or not multi-projection is performed.

  As a result, it is possible to provide a projector that can automatically change various settings in order to reduce the trouble of constructing a multi-projection system.

1 is a schematic diagram showing an outline of a projection system in Embodiment 1. FIG. The block diagram which shows the structure of a 1st projector. First, a front view of the projector. The block diagram which shows the structure of a 2nd projector. The front view of a 2nd projector. The flowchart which shows operation | movement of a 1st projector. The flowchart which shows operation | movement of a 2nd projector.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an outline of a projection system according to an embodiment of the present invention.

[Example 1]
The projector according to the first embodiment of the present invention will be described below with reference to FIGS.

  FIG. 1 shows an outline of a projection system that is Embodiment 1 of the present invention. In FIG. 1, P1 is a first projector and P2 is a second projector. The first projector P1 and the second projector P2 are connected so that they can communicate with each other. This connection is performed by BlueTooth or the like. The connection between the projectors may be a wireless connection other than BlueTooth, or a wired connection.

  W is a projection surface such as a wall, on which images are projected from the first projector P1 and the second projector P2. Here, the image A1 is projected on the screen from the first projector P1, and the image A2 is projected on the screen from the second projector P2. In the figure, the images are projected on different areas on the screen. However, the images A1 and A2 may be the same image and projected on the same area as in the stack projection.

  S is an image supply device such as a personal computer, a DVD player, or a TV tuner, and outputs an image signal. Here, the image supply device S has a function of outputting the images A1 and A2.

  FIG. 2 shows the configuration of the first projector. An image input / output unit 101 includes an image interface connector such as VGA, DVI, and HDMI (not shown), and an image signal is supplied from the image supply device S. Of the image signals supplied to the image signal input / output unit 101, the image signal corresponding to the image A1 is input to the image processing unit 102, and the image signal corresponding to the image A2 is supplied to the second projector P2. .

  The image processing unit 102 performs various types of image processing such as resolution conversion, keystone correction, and image quality correction such as brightness, contrast, sharpness, and color. Further, when the image processing unit 102 receives an image processing setting change signal from an MPU to be described later, the image processing unit 102 changes various image processing settings according to the setting change contents. The R, G, and B image signals that have been subjected to various types of image processing are input to the panel drive unit 103.

  The liquid crystal panel driving unit 103 drives the three R, G, and B liquid crystal panels 104 based on the input R, G, and B image signals. The liquid crystal panel 104 may be a transmissive liquid crystal panel or a reflective liquid crystal panel, or a display element other than the liquid crystal panel may be used.

  On the other hand, the light source driving unit 105 performs light source driving such as turning on and off the light source 106 and keeping the power supplied to the light source 106 constant. When the light source driving unit 105 receives a signal for changing the light source luminance setting from the MPU described later, the light source driving unit 105 changes the light source luminance by changing the power supplied to the light source 106.

  Light emitted from the light source 106 is decomposed into R, G, and B light by an optical system (not shown) and guided to the R, G, and B liquid crystal panels 104, respectively. The light guided to the liquid crystal panel 104 is image-modulated by the liquid crystal panel 104 and projected onto the projection surface W by a projection lens (not shown). Thereby, the image A1 is displayed on the projection surface W.

  The MPU 107 controls the image processing unit 102, the panel driving unit 103, and the light source driving unit 105. Further, the MPU 107 reads a user operation input to the operation unit 109 and performs an operation corresponding to the operation.

  The ROM 108 stores various programs and settings. Various settings such as brightness / contrast / sharpness / gamma / color / lamp brightness when a projector is used as a multi-projection system are also stored in the ROM 108.

  The direction sensor 110 is a sensor that measures the direction by geomagnetism, and outputs a signal according to the measured direction to the MPU 107.

  The positional relationship confirmation unit 111 includes an infrared signal transmission / reception unit (not shown), and the first projector can transmit the infrared signal from the transmission unit, and can be transmitted from the second projector by the reception unit. Receives infrared signals that are transmitted. Further, as shown in the front view of the first projector P1 in FIG. 3, the positional relationship confirmation unit 111 is provided with positional relationship confirmation units 111-1 and 111-2 on the side surfaces of the main body, respectively. The positional relationship confirmation unit 111 outputs information such as whether communication with the second projector is possible to the MPU 107.

  The communication unit 112 is provided with a wireless communication function such as BlueTooth, and performs communication with the second projector through this communication unit.

  Next, the configuration of the second projector P2 will be described with reference to FIGS. The configuration of the second projector P2 is the same as that of the first projector P1, and the same components as those of the first projector P1 in FIGS. 2 and 3 are denoted by the same reference numerals as those in FIG.

  In the second projector P2, an image signal corresponding to the image A2 is input to the image processing unit 102.

  Further, as shown in the front view of the second projector P2 in FIG. 5, the positional relationship confirmation unit 111 is provided with positional relationship confirmation units 111-1 and 111-2 on the side surfaces of the main body, respectively. Further, the positional relationship confirmation unit 111 includes an infrared signal transmission / reception unit (not shown), the second projector can transmit an infrared signal by the transmission unit, and can also be transmitted from the first projector by the reception unit. Infrared signal can be received. The positional relationship confirmation unit 111 outputs information such as whether communication with the first projector is possible to the MPU 107.

  The communication unit 112 is provided with a wireless communication function such as BlueTooth, and performs communication with the first projector through this communication unit.

  Next, the operation of the first projector P1 will be described using the flowchart of FIG.

  In step (denoted as S in the figure) 11, an infrared line signal is transmitted to confirm the position with the second projector P2. In step 12, if there is an infrared signal from the second projector P2, it is determined that the second projector P2 is installed at a position where infrared communication is possible. If there is no infrared signal, the first projector P2 The second projector P2 is located at a position where infrared communication is not possible, such as when the position between the projector P1 and the second projector P2 is far away, or there is a wall between the first projector P1 and the second projector P2. Judge that it is installed. If it is determined that the second projector P2 is installed at a position where infrared communication is not possible, it is determined that the multi-projection system is not configured, and the flowchart ends. When it is determined that the second projector P2 is installed at a position where infrared communication is possible, the process proceeds to the next step.

  In step 13, the projection azimuth measurement is performed, and in step 14, the result of the projection azimuth measurement is transmitted to the second projector P2.

  In step 15, it is determined whether or not the orientation measurement result from the second projector P2 has been received. If the orientation measurement result from the second projector P2 cannot be received, the process proceeds to step 16, and if it is received, the process proceeds to step 17. At the same time as waiting for reception of the direction measurement result from the second projector P2, time measurement is started (not shown). If the predetermined time has elapsed, the flowchart is terminated.

  In step 17, the projection direction measurement result of the first projector P1 itself is compared with the direction measurement result of the second projector P2 transmitted from the second projector P2, and if the two direction measurement results are close to each other, Then, the process proceeds to step 18.

  In step 18, various settings such as brightness / contrast / sharpness / gamma / color / lamp brightness stored in the ROM 18 are read out, and the settings are changed. As various setting changes, priority is assigned to the first projector P1 or the second projector P2, and the priority order and various settings are respectively exchanged by the communication unit, and the projector with the lower priority order has the higher priority. It may be adjusted to the setting of the projector. This flowchart is the end.

  Next, the operation of the first projector P2 will be described using the flowchart of FIG.

  In step 21, an infrared ray signal is transmitted to confirm the position with the second projector P1. In step 22, if there is an infrared signal from the first projector P1, it is determined that the first projector P1 is installed at a position where infrared communication is possible, and if there is no infrared signal, the second projector P1 is determined. The second projector P1 is located at a position where infrared communication is impossible, such as when the position between the projector P2 and the first projector P1 is far, or there is a wall between the second projector P2 and the first projector P1. Judge that it is installed. If it is determined that the first projector P1 is installed at a position where infrared communication is not possible, it is determined that the multi-projection system is not configured, and the flowchart ends. When it is determined that the first projector P1 is installed at a position where infrared communication is possible, the process proceeds to the next step.

  In step 23, a projection azimuth measurement is performed. In step 24, the result of the projection azimuth measurement is transmitted to the first projector P1.

  In step 25, it is determined whether or not the orientation measurement result from the first projector P1 has been received. If the azimuth measurement result from the second projector P1 cannot be received, the process proceeds to step 26, and if received, the process proceeds to step 27. At the same time as waiting for reception of the direction measurement result from the first projector P1, time measurement is started (not shown). In step 26, if the time measurement is within a predetermined time, the process returns to step 25, and the time measurement is performed. If the predetermined time has elapsed, the flowchart is terminated.

  In step 27, the projection direction measurement result of the second projector P2 itself is compared with the direction measurement result of the first projector P1 transmitted from the first projector P1, and if the two direction measurement results are close to each other, The process proceeds to step 28.

  In step 28, various settings such as brightness / contrast / sharpness / gamma / color / lamp brightness stored in the ROM 28 are read out and each setting is changed. As various setting changes, priority is assigned to the first projector P1 or the second projector P2, and the priority order and various settings are respectively exchanged by the communication unit, and the projector with the lower priority order has the higher priority. It may be adjusted to the setting of the projector. This flowchart is the end.

P1 First projector P2 Second projector 101 Image signal input / output unit 102 Image processing unit 103 Panel drive unit 104 Panel 105 Light source drive unit 106 Light source 107 MPU
108 ROM
109 Operation unit 110 Direction sensor 111 Distance confirmation unit 112 Communication unit

Claims (6)

Including a first projector and a second projector;
The first projector;
The second projector is
Azimuth measuring means for measuring the projected azimuth;
Positional relationship confirmation means for confirming the position with the other projector,
A communication means capable of communicating with the other projector,
The first projector and the second projector measure the azimuth by the azimuth measuring means, exchange the azimuth measurement results by the communication means,
Further, the first projector and the second projector determine the positional relationship of the other projector by the positional relationship confirmation means,
Whether the first projector and the second projector are elements constituting a multi-projection according to the direction measurement result and the positional relationship confirmation result of the first projector and the second projector, respectively. Judgment,
A projector characterized by automatically changing the setting of its own projector.   The projector according to claim 1, wherein the azimuth measuring unit is a geomagnetic sensor.   The projector according to claim 1, wherein the positional relationship confirmation unit includes an infrared transmission unit and an infrared reception unit.   The projector according to claim 1, wherein the positional relationship confirmation unit includes a plurality of positional relationship confirmation units, and the plurality of positional relationship confirmation units are provided at different positions.   The projector according to claim 1, wherein the setting includes at least one of brightness / contrast / sharpness / gamma / color / lamp brightness. The projector according to claim 1, wherein a priority order can be set for each of the first projector and the second projector.