JP7320753B2 - control system - Google Patents

Description

The present invention relates to a projector and a control system having the same.

As an example of a projector that projects an image, Patent Document 1 discloses a projector that has an input unit and a projection control unit. The input unit receives an infrared signal transmitted from a remote controller and outputs operation data indicating an operation on the remote controller. The projection control section executes image projection based on operation data input from the input section.

JP 2017-173574 A

By the way, it is desirable that the projector, which is installed at the same time as the lighting equipment, is installed using the same construction method as the lighting equipment. Moreover, in order to use a plurality of projectors at the same time or to use the projectors in conjunction with surrounding lighting fixtures, it is desirable to use the projectors as if they were lighting fixtures. In order to solve such problems in terms of construction and operation, there is room for further study on projector control methods.

For example, a projector as disclosed in Patent Document 1 may be used together with a lighting fixture and controlled in conjunction with the lighting fixture. Conventionally, interlocking control of a projector with a lighting fixture requires intervention of middleware, etc., and it was not easy to interlock the projector with the lighting fixture. Further, even if a controller for controlling the projector is used to control the projector and the lighting equipment in conjunction with each other, it is difficult for a user who has only knowledge of the lighting equipment to operate.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a projector and a control system including the projector that facilitates interlocking control with lighting fixtures.

In order to achieve the above object, one aspect of the projector according to the present invention is a projector that projects an image, and includes a signal input unit that receives a lighting control signal that is output from a lighting controller and used to control a lighting fixture. Prepare.

In order to achieve the above object, one aspect of a control system according to the present invention includes the above projector, a lighting controller that inputs the lighting control signal to the projector, and a lighting fixture controlled by the lighting controller. Prepare.

ADVANTAGE OF THE INVENTION According to this invention, the control system provided with the projector and the same with which interlocking control with a lighting fixture is easy is obtained.

It is a figure which shows the control system which concerns on embodiment. FIG. 2 shows a projector of the control system of FIG. 1, where (a) is a plan view and (b) is a side view; FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2, (a) showing the state before inserting the first signal line, and (b) showing the state after inserting the first signal line; 2 is a diagram showing a state in which a first signal line is connected to a projector and a lighting controller and a second signal line is connected to a projector and other projectors in the control system of FIG. 1; FIG. 2 is a block diagram showing the functional configuration of the control system of FIG. 1; FIG. FIG. 2 is a flow diagram showing an example of the operation of a control unit of the projector in the control system of FIG. 1; FIG. 4 is a diagram showing an example of a lighting control signal, where (a) is a diagram showing an example of a PWM (Pulse Width Modulation) signal, and (b) is a diagram showing an example of a PFM (Pulse Frequency Modulation) signal; . 2 is a diagram showing an example of image projection control by a control unit of a projector in the control system of FIG. 1; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. It should be noted that each of the embodiments described below is a preferred specific example of the present invention. Therefore, numerical values, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention.

Each figure is a schematic diagram and is not necessarily strictly illustrated. In addition, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

In the following description, the X-axis, Y-axis, and Z-axis represent the three axes of a three-dimensional orthogonal coordinate system. direction) is the horizontal direction. The X-axis and the Y-axis are orthogonal to each other and are both orthogonal to the Z-axis.

(Embodiment)
A control system 100 according to an embodiment will be described below.

FIG. 1 is a diagram showing a control system 100 according to an embodiment. As shown in FIG. 1, a control system 100 includes a plurality of (two in this embodiment) projectors 10a and 10b and a plurality of (three in this embodiment) lighting fixtures 12a, 12b and 12c. , and a lighting controller 14 . The control system 100 controls the plurality of projectors 10a, 10b and the plurality of lighting fixtures 12a, 12b, 12c using lighting control signals output from the lighting controller 14 and generally used for controlling lighting fixtures. System. Each configuration will be described below.

First, the projectors 10a and 10b will be described. Each of the projector 10 a and the projector 10 b is a projector that projects an image, and is an embedded type (in other words, downlight type) projector that is embedded in the ceiling 2 of the space 1 . Projector 10a and projector 10b are arranged adjacent to each other. Space 1 is, for example, a closed space such as a room. The images projected by the projectors 10a and 10b are, for example, monochrome images (in other words, grayscale images) simulating natural objects such as shades of trees (sunlight filtering through the trees). Such an image is used, for example, for rendering space 1 . Note that the images here include still images and moving images.

2A and 2B are diagrams showing the projector 10a of the control system 100 of FIG. 1, where (a) is a plan view and (b) is a side view. In addition, in FIG. 2(a), illustration of the ceiling 2 is omitted in order to avoid complicating the drawing. In addition, in FIG. 2(b), the ceiling 2 is shown in cross section. As shown in FIG. 2, the projector 10a includes an outer casing 16, a collar portion 18, and a signal terminal block 20. As shown in FIG.

The outer casing 16 is inserted through the through hole 3 that vertically penetrates the ceiling 2 . The through hole 3 is circular when viewed from the vertical direction. The outer casing 16 is formed integrally with the flange portion 18 and fixed to the ceiling 2 by metal fittings (not shown) or the like. The outer housing 16 protrudes vertically upward (the positive side in the Z-axis direction) from a ceiling surface (lower surface) 4 of the ceiling 2 and is embedded in the ceiling 2 . A ceiling surface 4 of the ceiling 2 is a surface extending in the horizontal direction. The outer casing 16 extends vertically and has a substantially cylindrical shape. Outer housing 16 has a top surface 22 and an outer surface 24 . The upper surface 22 is a surface parallel to the horizontal direction and perpendicular to the vertical direction. The upper surface 22 is substantially circular when viewed vertically. The outer surface 24 is a surface that extends vertically and intersects the horizontal direction. The outer surface 24 extends vertically downward (minus side in the Z-axis direction) from the outer peripheral portion of the upper surface 22 . The outer surface 24 has a substantially annular shape when viewed vertically. The outer housing 16 accommodates an image device 58 (described later) and the like inside. A detailed description of the image element 58 and the like will be given later.

The flange portion 18 protrudes outward from the lower end portion of the outer casing 16, has a flange shape, and has a substantially annular shape when viewed in the vertical direction. The collar part 18 is fixed so as to come into contact with the ceiling surface 4 of the ceiling 2 from below.

The signal terminal block 20 is a portion to which the lighting control signal output from the lighting controller 14 and used for controlling the lighting equipment is input, and outputs the lighting control signal input to the signal terminal block 20 to the outside of the projector 10a. This is the part to do. In this embodiment, the signal terminal block 20 corresponds to a signal input section and a signal output section.

The signal terminal block 20 has a plus side signal wire insertion hole 29 , a plus side terminal 30 , a minus side signal wire insertion hole 31 and a minus side terminal 32 . The positive signal wire insertion hole 29 , the positive terminal 30 , the negative signal wire insertion hole 31 , and the negative terminal 32 are used to input the lighting control signal output from the lighting controller 14 to the signal terminal block 20 . Used.

The plus side signal wire insertion hole 29 is open in the horizontal direction (Y-axis direction plus side), and the signal wire can be inserted from the horizontal direction (Y-axis direction plus side). FIG. 3 is a cross-sectional view taken along line III-III of FIG. As shown in (a) of FIG. 3, the positive terminal 30 is arranged in the positive signal wire insertion hole 29, and is the first signal for inputting the lighting control signal output from the lighting controller 14. It is a quick connect terminal to which a wire 40 (described later) is connected. The plus side terminal 30 is made of a metal material or the like and has electrical conductivity. As shown in FIG. 3B, the positive signal line 44 of the first signal line 40 includes a conductive core wire 44a such as copper wire and an insulating coating member such as resin covering the core wire 44a. 44b, and when the plus side signal wire 44 is inserted into the plus side signal wire insertion hole 29, the plus side terminal 30 presses the plus side signal wire 44 (core wire 44a), and the plus side terminal 30 and The plus side signal line 44 is electrically connected, and the plus side signal line 44 is fixed to the signal terminal block 20 .

As shown in FIG. 2, the negative signal wire insertion hole 31 is arranged below the positive signal wire insertion hole 29 in the vertical direction. The minus side signal wire insertion hole 31 is open in the horizontal direction (the positive side in the Y-axis direction), and the signal wire can be inserted from the horizontal direction (the positive side in the Y-axis direction). The minus side terminal 32 is a quick connection terminal to which the first signal line 40 for inputting the lighting control signal output from the lighting controller 14 is connected, and is arranged in the minus side signal line insertion hole 31 . . Since the negative terminal 32 has the same structure as the positive terminal 30, detailed description of the negative terminal 32 is omitted by referring to the description of the positive terminal 30 described above. A negative signal line 46 (described later) of the first signal line 40 has a structure similar to that of the positive signal line 44, so detailed description of the negative signal line 46 is omitted. 46 is inserted into the negative signal wire insertion hole 31, the negative terminal 32 presses the negative signal wire 46 (core wire), and the negative terminal 32 and the negative signal wire 46 are electrically connected. A negative signal line 46 is fixed to the signal terminal block 20 .

Note that the positive terminal 30 and the negative terminal 32 may not be quick-connect terminals. In this embodiment, the plus side terminal 30 and the minus side terminal 32 correspond to the first terminals.

The signal terminal block 20 further has a positive signal wire insertion hole 35 , a positive terminal 36 , a negative signal wire insertion hole 37 and a negative terminal 38 . The positive signal wire insertion hole 35, the positive terminal 36, the negative signal wire insertion hole 37, and the negative terminal 38 are used to output the lighting control signal input to the signal terminal block 20 to the outside of the projector 10a. used for The plus side terminal 36 and the minus side terminal 38 are electrically connected to the plus side terminal 30 and the minus side terminal 32, and the lighting control signal input to the signal terminal block 20 is transmitted through the plus side terminal 36 and the minus side terminal. 38 to the outside.

The plus side signal wire insertion hole 35 is arranged side by side with the plus side signal wire insertion hole 29 in the horizontal direction (X-axis direction). The plus side signal wire insertion hole 35 is open in the horizontal direction (Y axis direction plus side), and the signal wire can be inserted from the horizontal direction (Y axis direction plus side). The plus side terminal 36 is a quick connection terminal to which a second signal line 42 (described later) is connected for outputting the illumination control signal input to the signal terminal block 20 to the outside of the projector 10a. It is arranged in the receiving hole 35 . Since the plus side terminal 36 has the same structure as the plus side terminal 30, the detailed explanation of the plus side terminal 36 is omitted by referring to the above explanation of the plus side terminal 30. FIG. A plus side signal line 48 (described later) of the second signal line 42 has the same structure as the plus side signal line 44 of the first signal line 40, so detailed description of the plus side signal line 48 is omitted. However, when the plus side signal wire 48 is inserted into the plus side signal wire insertion hole 35, the plus side terminal 36 presses the plus side signal wire 48 (core wire), and the plus side terminal 36 and the plus side signal wire 48 are connected. They are electrically connected, and the plus side signal line 48 is fixed to the signal terminal block 20 .

The negative signal line insertion hole 37 is arranged side by side with the negative signal line insertion hole 31 in the horizontal direction (X-axis direction). In addition, the minus side signal wire insertion hole 37 is arranged below the plus side signal wire insertion hole 35 in the vertical direction. The minus side signal wire insertion hole 37 is open in the horizontal direction (the positive side in the Y-axis direction), and the signal wire can be inserted from the horizontal direction (the positive side in the Y-axis direction). The minus side terminal 38 is a quick connection terminal to which a second signal line 42 for outputting the illumination control signal input to the signal terminal block 20 to the outside of the projector 10a is connected. placed inside. Since the negative terminal 38 has a structure similar to that of the positive terminal 30, detailed description of the negative terminal 38 is omitted by referring to the description of the positive terminal 30 described above. Since the negative signal line 50 (described later) of the second signal line 42 has the same structure as the positive signal line 44 of the first signal line 40, detailed description of the negative signal line 50 is omitted. However, when the minus side signal wire 50 is inserted into the minus side signal wire insertion hole 37, the minus side terminal 38 presses the minus side signal wire 50 (core wire), and the minus side terminal 38 and the minus side signal wire 50 are connected. They are electrically connected, and the negative signal line 50 is fixed to the signal terminal block 20 .

Note that the positive terminal 36 and the negative terminal 38 may not be quick-connect terminals. In this embodiment, the plus side terminal 36 and the minus side terminal 38 correspond to the second terminals.

As described above, the portion (signal input portion) for inputting the lighting control signal and the portion (signal output portion) for outputting the lighting control signal to the outside of the projector 10a have a structure into which the signal line is inserted. and have similar structures to each other.

Since the projector 10b has the same configuration as the projector 10a, the detailed description of the projector 10b is omitted by referring to the description of the projector 10a.

FIG. 4 is a diagram showing a state in which the first signal line 40 is connected to the projector 10a and the lighting controller 14, and the second signal line 42 is connected to the projector 10a and another projector 10b in the control system 100 of FIG. . As shown in FIG. 4, the first signal line 40 is connected to the projector 10a and the lighting controller 14. As shown in FIG. The first signal line 40 is a signal line for inputting the lighting control signal output from the lighting controller 14 to the projector 10a, and has a plus side signal line 44 and a minus side signal line 46. FIG. The positive signal line 44 electrically connected to the positive terminal of the lighting controller 14 is inserted into the positive signal line insertion hole 29 of the projector 10a and electrically connected to the positive terminal 30 (see FIG. 2). It is Also, the negative signal line 46 electrically connected to the negative terminal of the lighting controller 14 is inserted into the negative signal line insertion hole 31 of the projector 10a and electrically connected to the negative terminal 32 (see FIG. 2). It is connected to the. Thereby, the lighting control signal output from the lighting controller 14 is input to the projector 10a.

Also, the second signal line 42 is connected to the projector 10a and another projector 10b. The second signal line 42 is a signal line for outputting the lighting control signal input from the lighting controller 14 to the signal terminal block 20 to the outside of the projector 10a. have A positive signal wire 48 inserted into the positive signal wire insertion hole 35 of the projector 10a and electrically connected to the positive terminal 36 (see FIG. 2) is inserted into the positive signal wire insertion hole 29 of the projector 10b. It is inserted and electrically connected to the plus side terminal 30 (see FIG. 2). Also, the negative signal line 50 inserted into the negative signal line insertion hole 37 of the projector 10a and electrically connected to the negative terminal 38 (see FIG. 2) is connected to the negative signal line insertion hole of the projector 10b. 31 and electrically connected to a negative terminal 32 (see FIG. 2). As a result, the lighting control signal input from the lighting controller 14 to the projector 10a is output to the outside of the projector 10a and input to the other projector 10b.

Next, the plurality of lighting fixtures 12a, 12b, 12c will be described. As shown in FIG. 1, a plurality of lighting fixtures 12a, 12b, and 12c are lighting fixtures that illuminate a space 1 and are fixed to the ceiling 2 of the space 1. As shown in FIG. Specifically, each of the plurality of lighting fixtures 12a, 12b, and 12c is an embedded lighting fixture (in other words, a downlight type) embedded in the ceiling 2 of the space 1. FIG. The plurality of lighting fixtures 12a, 12b, 12c are arranged adjacent to each other. In addition, the specific aspect of lighting fixture 12a, 12b, 12c is not specifically limited. For example, the lighting fixtures 12a, 12b, 12c may be ceiling lights, downlights, pendant lights, spotlights, bracket lights, or the like.

Next, the lighting controller 14 will be described. As shown in FIG. 1, the lighting controller 14 is a controller for controlling the multiple projectors 10a, 10b and the multiple lighting fixtures 12a, 12b, 12c, and is installed on the wall of the space 1. FIG. It should be noted that the lighting controller 14 does not have to be installed on the wall of the space 1 as long as it is placed in a place where the user can operate it. The lighting controller 14 has a touch panel (not shown), hardware buttons (not shown), or the like, and receives user operations through the touch panel, hardware buttons, or the like. The lighting controller 14 outputs a lighting control signal according to the user's operation.

FIG. 5 is a block diagram showing the functional configuration of the control system 100 of FIG. 1. As shown in FIG. A functional configuration of the control system 100 will be described with reference to FIG.

As shown in FIG. 5, the projector 10a further includes a power supply section 52, a light source driving section 54, a light source 56, an image element 58, a projection lens 60, a control section 62, and a storage section 64. The power supply unit 52 , light source driving unit 54 , light source 56 , image device 58 , projection lens 60 , control unit 62 and storage unit 64 are housed inside the outer casing 16 .

The power supply unit 52 is a power conversion circuit that converts AC power supplied from an AC power supply external to the projector 10a into DC power.

The light source driving section 54 is a circuit for adjusting the brightness of the light source 56 using power supplied from the power supply section 52 . The light source driver 54 operates based on the control signal output from the controller 62 .

The light source 56 is a light source that emits white light. The light source 56 is specifically implemented by a light emitting diode (LED), but may be implemented by a semiconductor laser, an organic EL (Electro Luminescence), an inorganic EL, or the like.

The image element 58 modulates the light emitted by the light source 56 and emits it as an image. The image element 58 is specifically a light-transmissive image element such as a transmissive liquid crystal panel, but may be a reflective image element such as a micromirror array or a reflective liquid crystal panel.

The projection lens 60 is an optical element that projects the image emitted by the image element 58 onto a projection surface such as a floor surface.

The control unit 62 is a control device that controls the light source 56 (more specifically, the light source driving unit 54 ) and the video device 58 . For example, the control unit 62 controls the light source 56 (more specifically, the light source driving unit 54) and the image element 58 based on the illumination control signal input to the signal terminal block 20, and performs image projection. control. Specifically, the control unit 62 controls image projection by selecting an image to be projected, turning on/off the projection, changing the brightness of the projected image, changing the contrast of the projected image, and controlling the projection of the projected image. At least one of changing the color temperature of the image, changing the zoom magnification of the projected image, changing the focus position of the projected image, and scheduled operation is performed. Here, the lighting control signal is a signal that is generally used for controlling lighting fixtures. For example, the lighting control signal is a signal standardized for controlling lighting equipment, such as a dimming signal used for dimming the lighting equipment or a toning signal used for toning the lighting equipment. Specifically, the lighting control signal is a PWM signal, a PFM signal, or the like used for dimming of lighting fixtures. Further, here, the luminaire is, for example, a luminaire, such as the luminaire 12a (12b, 12c), which does not have an image element, is fixed to the ceiling or the like, and is used to illuminate the room or the like. . In the control system 100, one lighting control signal output from the lighting controller 14 is input to the projector 10a, and another lighting control signal output from the lighting controller 14 is input to the lighting fixtures 12a (12b, 12c). , the projector 10a and the lighting equipment 12a (12b, 12c) can be operated in conjunction with each other. The control unit 62 controls image projection by controlling not only the light source 56 but also the imaging device 58 based on the illumination control signal as described above. Note that dimming includes turning on and turning off the light source. Dimming also includes changing the brightness of the light source while the light source is on. The control unit 62 operates by power supplied from the power supply unit 52 . The controller 62 is specifically realized by a microcomputer, but may be realized by a processor or a dedicated circuit.

The storage unit 64 stores image information of each of a plurality of types of images (in other words, a plurality of contents) projected by the projector 10a. The storage unit 64 also stores a control program for the projector 10a executed by the control unit 62, and the like. The storage unit 64 is specifically implemented by a semiconductor memory or the like.

Since the projector 10b has the same configuration as the projector 10a, the detailed description of the projector 10b is omitted by referring to the description of the projector 10a. As described above, the signal terminal block 20 of the projector 10b and the signal terminal block 20 of the projector 10a are electrically connected via the second signal line 42, and the lighting control signal input to the projector 10a is , is input to the projector 10 b via the second signal line 42 .

The lighting controller 14 is electrically connected to the signal terminal block 20 of the projector 10a and the plurality of lighting fixtures 12a, 12b, 12c. The lighting controller 14 outputs a lighting control signal according to the user's operation, and the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, and 12c. For example, when the user uses the lighting controller 14 to perform dimming operation for the plurality of lighting fixtures 12a, 12b, and 12c, the lighting controller 14 outputs a lighting control signal (dimming signal) corresponding to the dimming operation. Then, the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, and 12c. Further, for example, when the user uses the lighting controller 14 to perform a toning operation for the plurality of lighting fixtures 12a, 12b, and 12c, the lighting controller 14 outputs a lighting control signal (a toning signal) corresponding to the toning operation. , and the lighting control signal is input to the projector 10a and the plurality of lighting fixtures 12a, 12b, and 12c.

The lighting fixture 12 a has a light source 66 and a control section 68 . It should be noted that the luminaire 12a does not have a picture element that functions like the picture element 58 of the projector 10a.

The light source 66 is a light source that emits white light. The light source 66 is specifically realized by a light-emitting diode (LED), but may be realized by a semiconductor laser, an organic EL, an inorganic EL, or the like.

The controller 68 controls the light source 66 based on the lighting control signal output from the lighting controller 14 . The controller 68 is specifically realized by a microcomputer, but may be realized by a processor or a dedicated circuit.

Since the lighting fixtures 12b and 12c have the same configuration as the lighting fixture 12a, detailed description of the lighting fixtures 12b and 12c is omitted by referring to the above description of the lighting fixture 12a.

Next, the operation of the control system 100 as described above will be described. FIG. 6 is a flowchart showing an example of the operation of the control section 62 of the projector 10a in the control system 100 of FIG. FIG. 7 is a diagram showing an example of a lighting control signal, (a) is a diagram showing an example of a PWM signal, and (b) is a diagram showing an example of a PFM signal. FIG. 8 is a diagram illustrating an example of image projection control performed by the control unit 62 . An example of the operation of the control unit 62 of the projector 10a will be described with reference to FIGS. 6 to 8. FIG.

As shown in FIG. 6, when the user operates the lighting controller 14, the lighting control signal from the lighting controller 14 is input to the projector 10a (signal terminal block 20), and the control unit 62 acquires the lighting control signal. (S1 in FIG. 6).

The control unit 62 controls image projection based on the acquired illumination control signal (S2 in FIG. 6). For example, a description will be given of a case where the lighting control signal is a dimming signal generally used for dimming lighting fixtures, and the dimming signal is a PWM signal. As shown in (a) of FIG. 7, the PWM signal has a constant voltage-on cycle (see T in (a) of FIG. 7), and the voltage-on time is not constant (see (a) of FIG. 7). 7 (a) τ1 and τ2) signals. The duty ratio of the PWM signal is calculated by (time during which the voltage is turned on)/(period during which the voltage is turned on). The frequency of the PWM signal is, for example, 1 kHz, and the voltage value of the PWM signal is, for example, 12V. When the dimming signal is a PWM signal, the control unit 62 controls image projection as shown in FIG. 8, for example, based on the duty ratio of the PWM signal.

Specifically, the control unit 62 turns projection on and off based on the duty ratio of the PWM signal. For example, if the duty ratio of the acquired PWM signal is greater than a predetermined value in a state in which no image is projected onto the projection surface (a state in which projection is turned off), the control unit 62 turns on image projection. , to project the image onto the projection plane. Further, if the duty ratio of the acquired PWM signal is smaller than a predetermined value while the image is being projected onto the projection plane (the projection is turned on), the control unit 62 turns off the projection of the image. , does not project an image onto the projection surface.

Also, the control unit 62 selects an image to be projected based on the duty ratio of the PWM signal. For example, the duty ratio of the PWM signal is associated with the image information stored in the storage unit 64, and the control unit 62 selects the image information corresponding to the acquired duty ratio of the PWM signal, thereby controlling the projection plane. Select the image to be projected on the

Also, the control unit 62 changes the brightness of the projected image based on the duty ratio of the PWM signal. For example, the greater the duty ratio of the acquired PWM signal, the brighter the image projected on the projection plane, and the smaller the duty ratio of the acquired PWM signal, the brighter the image projected onto the projection plane. Darken the brightness of the image in which the

Also, the control unit 62 changes the contrast of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 increases the contrast of the image projected on the projection plane as the duty ratio of the acquired PWM signal increases, and increases the contrast of the image projected onto the projection plane as the duty ratio of the acquired PWM signal decreases. Decrease the contrast of the image.

Also, the control unit 62 changes the color temperature of the projected image based on the duty ratio of the PWM signal. For example, the controller 62 increases the color temperature of the image projected on the projection plane as the duty ratio of the acquired PWM signal increases, and increases the color temperature of the image projected onto the projection plane as the duty ratio of the acquired PWM signal decreases. lower the color temperature of the image.

Further, the control unit 62 changes the zoom magnification of the projected image based on the duty ratio of the PWM signal. For example, the controller 62 increases the zoom magnification of the image projected on the projection plane as the duty ratio of the acquired PWM signal increases, and increases the zoom magnification of the image projected on the projection plane as the duty ratio of the acquired PWM signal decreases. Decrease the zoom ratio of the image in which the When the zoom magnification is increased, the image projected on the projection plane is enlarged, and when the zoom magnification is decreased, the image projected on the projection plane is reduced.

Also, the control unit 62 changes the focus position of the projected image based on the duty ratio of the PWM signal. For example, the control unit 62 changes the focus position to the long distance side as the duty ratio of the acquired PWM signal increases, and changes the focus position to the near distance side as the duty ratio of the acquired PWM signal decreases. For example, when the image projected onto the projection plane is out of focus, the image projected onto the projection plane can be brought into focus by changing the focus position of the projected image.

Further, the control unit 62 performs scheduled operation based on the duty ratio of the PWM signal. For example, as scheduled operation, the control unit 62 projects an image so that the image projected onto the projection plane changes according to the time. Further, for example, the control unit 62 projects an image as a scheduled operation so that the image projected onto the projection surface changes according to the day of the week. Further, for example, the control unit 62 projects an image as a scheduled operation so that the image projected onto the projection plane changes according to the season. In this case, data for performing each schedule operation is stored in the storage unit 64, and each data is associated with the duty ratio of the PWM signal. Then, the control unit 62 selects data corresponding to the acquired duty ratio of the PWM signal, and performs scheduled operation using the data. For example, the data includes a plurality of pieces of image information, etc. Based on the plurality of pieces of image information, the control unit 62 sequentially projects a plurality of images onto the projection plane according to time and the like.

As described above, the control unit 62 not only controls the brightness of the projector 10a by using the dimming signal generally used for dimming lighting equipment, but also controls the projector 10a other than dimming.

Although the case where the dimming signal is the PWM signal has been described above, the dimming signal may be, for example, a pulse signal such as a PFM signal. As shown in FIG. 7(b), the PFM signal has a constant voltage-on period (see T1 and T2 in FIG. 7(b)) rather than a constant period. (See τ in (b) of FIG. 7). When the dimming signal is a PFM signal, the control unit 62 adjusts the above-described image based on a value calculated by, for example, (time during which the voltage is turned on)/(period during which the voltage is turned on). Projection control may be performed.

Alternatively, the lighting control signal may be a toning signal that is generally used for toning lighting fixtures. For example, if the toning signal is a PWM signal, the control unit 62 may control image projection as described above based on the duty ratio of the PWM signal. Further, for example, the control unit 62 may control the projection of the image as described above according to the color temperature indicated by the toning signal. Specifically, if the color temperature indicated by the obtained toning signal is higher than the predetermined color temperature, the control unit 62 turns on image projection, and the color temperature indicated by the obtained toning signal is higher than the predetermined color temperature. , the projection of the image may be turned off. Further, the color temperature indicated by the toning signal is associated with the image information, and the control unit 62 may select an image according to the color temperature indicated by the acquired toning signal. In addition, the higher the color temperature indicated by the acquired toning signal, the more the control unit 62 brightens the image projected on the projection plane, increases the contrast, increases the color temperature, or increases the zoom magnification. You can make it bigger. In addition, the lower the color temperature indicated by the obtained toning signal, the lower the control unit 62 makes the image projected on the projection plane darker, lowers the contrast, lowers the color temperature, or increases the zoom magnification. You can make it smaller. In addition, the control unit 62 shifts the focus position to the far side as the color temperature indicated by the obtained toning signal is higher, and shifts the focus position to the closer side as the color temperature indicated by the obtained toning signal is lower. You can change it. Further, the control unit 62 may perform the schedule operation as described above according to the color temperature indicated by the acquired toning signal.

As described above, the control unit 62 not only performs color toning of the projector 10a by using the color toning signal generally used for toning of lighting fixtures, but also performs control other than color toning of the projector 10a.

Also, the lighting control signal may be a signal conforming to a communication standard such as DALI (Digital Addressable Lighting Interface) or DMX (Digital Multiplex).

The projector 10b performs the same operation as the projector 10a, for example, based on the illumination control signal from the projector 10a.

The projector 10a as described above is a projector that projects an image, and includes a signal input section (signal terminal block 20) to which a lighting control signal output from the lighting controller 14 and used for controlling the lighting fixture is input.

According to this, the lighting control signal output from the lighting controller 14 and used for controlling the lighting fixtures can be input to the projector 10a. Interlocking control is easy.

The projector 10a as described above further includes a control section 62 that controls image projection based on the illumination control signal input to the signal input section (the signal terminal block 20).

According to this, the control unit 62 controls image projection based on the lighting control signal input to the signal terminal block 20, so that the lighting control signal is used to control the projector 10a and the lighting fixtures 12a and 12b. , 12c can be more easily interlocked and controlled.

In the projector 10a as described above, the control unit 62 controls image projection by selecting an image to be projected, turning on/off the projection, changing the brightness of the image to be projected, and adjusting the contrast of the image to be projected. change, change the color temperature of the projected image, change the zoom magnification of the projected image, change the focus position of the projected image, and perform at least one of scheduled operation.

According to this, for example, projection of an image by the projector 10a can be turned on/off in accordance with turning on/off of the lighting fixtures 12a, 12b, and 12c. In this way, the image projection by the projector 10a can be easily controlled in accordance with the operation of the lighting fixtures 12a, 12b, and 12c, and the interlocking control with the lighting fixtures 12a, 12b, and 12c can be performed more easily.

Further, the projector 10a as described above further includes a storage unit 64 that stores image information of an image to be projected.

According to this, since the image information of the image to be projected is stored in the storage unit 64, the selection of the image to be projected can be easily performed, and the interlocking control with the lighting fixtures 12a, 12b and 12c can be performed. It's even easier.

Further, in the projector 10a as described above, the illumination control signal is a dimming signal used for dimming the lighting equipment or a toning signal used for toning the lighting equipment.

According to this, the projection of an image by the projector 10a can be controlled based on the dimming signal used for dimming the lighting fixture or the toning signal used for toning the lighting fixture. 12b and 12c can be easily interlocked and controlled.

Further, in the projector 10a as described above, the lighting control signal is a dimming signal, and the dimming signal is a PWM signal.

According to this, the projection of an image by the projector 10a can be controlled based on the PWM signal used for controlling the lighting fixtures, so the projector 10a and the lighting fixtures 12a, 12b, and 12c can be easily linked and controlled.

In the projector 10a as described above, the control unit 62 controls image projection based on the duty ratio of the PWM signal.

According to this, the projection of an image by the projector 10a can be controlled based on the duty ratio of the PWM signal that is also used to control the lighting fixtures, so the projector 10a and the lighting fixtures 12a, 12b, and 12c can be easily linked and controlled. .

In the projector 10a as described above, the signal input section (signal terminal block 20) includes a plus side terminal 30 and a minus side terminal 30 to which the first signal line 40 for inputting the lighting control signal from the lighting controller 14 is connected. It has a terminal 32 .

Accordingly, the first signal line 40 for inputting the lighting control signal from the lighting controller 14 can be connected to the projector 10a, and the lighting control signal from the lighting controller 14 can be easily input to the projector 10a.

The projector 10a as described above further includes a signal output section (signal terminal block 20) for outputting the lighting control signal input to the signal input section (signal terminal block 20) to the outside of the projector 10a.

According to this, the illumination control signal input to the projector 10a can be transmitted to the other projector 10b. Therefore, the other projector 10b and the lighting fixtures 12a, 12b, 12c can be easily interlocked and controlled.

In the projector 10 as described above, the signal output section (signal terminal block 20) outputs a second signal for outputting the illumination control signal input to the signal input section (signal terminal block 20) to the outside of the projector 10a. It has a positive terminal 36 and a negative terminal 38 to which line 42 is connected.

According to this, the second signal line 42 for outputting the illumination control signal input to the signal input section (signal terminal block 20) to the outside can be connected to the projector 10a. The input lighting control signal can be easily output to the outside.

Further, the control system 100 as described above includes the projector 10a described above, a lighting controller 14 that inputs a lighting control signal to the projector 10a, and lighting fixtures 12a, 12b, and 12c controlled by the lighting controller 14. FIG.

According to this, the projector 10a and the lighting fixtures 12a, 12b, and 12c can be easily interlocked and controlled using the lighting controller 14. FIG.

(Other embodiments, etc.)
Although the projector and the like according to the present invention have been described above based on the embodiments, the present invention is not limited to these embodiments.

In the embodiment described above, the control system 100 includes two projectors 10a, 10b and three lighting fixtures 12a, 12b, 12c, but the present invention is not limited to this. For example, the control system may have one projector, or three or more projectors. Also, the control system may comprise one or two lighting fixtures, or four or more lighting fixtures.

In the above-described embodiment, the projectors 10a and 10b are embedded projectors, but the present invention is not limited to this. For example, the projector may be a projector placed on a table or the like for use.

In the embodiment described above, the case where the signal terminal block 20 is arranged on the outer surface 24 of the outer housing 16 has been described, but the present invention is not limited to this. For example, the signal terminal block may be located on top surface 22 of outer housing 16 .

In the embodiment described above, the case where the first signal line 40 is connected to the signal input section (the signal terminal block 20) has been described, but the present invention is not limited to this. For example, the first signal line may not be connected to the signal input section, and the lighting control signal may be wirelessly input to the signal input section.

In the embodiment described above, the case where the second signal line 42 is connected to the signal output section (the signal terminal block 20) has been described, but the present invention is not limited to this. For example, the second signal line may not be connected to the signal output section, and the lighting control signal may be wirelessly output from the signal output section to the outside.

In addition, forms obtained by applying various modifications that a person skilled in the art can come up with to the above-described embodiments, and realized by arbitrarily combining the constituent elements and functions of the embodiments without departing from the scope of the present invention. Also included in the present invention.

10a, 10b projector 12a, 12b, 12c lighting equipment 14 lighting controller 20 signal terminal block 30, 36 plus side terminal 32, 38 minus side terminal 40 first signal line 42 second signal line 62 control section 64 storage section 100 control system

Claims (13)

a lighting controller;
A lighting fixture that does not have the function of projecting an image;
a projector that projects an image,
The projector is
a signal input unit to which a lighting control signal output from the lighting controller and used for controlling the lighting fixture is input;
a control unit that controls projection of an image based on the illumination control signal input to the signal input unit ;
control system. When the lighting control signal is input to the signal inputting section, the control section performs second control different from the first control instead of the first control for the lighting fixture instructed by the lighting control signal. executing a second control for the projector upon projection of the image ;
A control system according to claim 1 . The lighting control signal is a signal that instructs control of a light source provided in the lighting fixture as the first control,
The second control is control related to an optical element included in the projector.
3. A control system according to claim 2. The lighting control signal is a signal that instructs dimming control or toning control as the first control,
The second control is control to change the zoom magnification of the image or control to change the focus position of the image.
4. A control system according to claim 3. The control unit performs at least one of changing the brightness of the projected image, changing the contrast of the projected image, and changing the color temperature of the projected image as the second control.
3. A control system according to claim 2. The lighting control signal is a PWM (Pulse Width Modulation) signal,
The control unit performs at least one of changing the brightness of the projected image, changing the contrast of the projected image, and changing the color temperature of the projected image based on the duty ratio of the PWM signal. conduct,
A control system according to claim 5 . The control unit performs at least one of on/off of projection, selection of an image to be projected, and scheduled operation as the second control,
3. A control system according to claim 2. the lighting control signal is a PWM signal;
The control unit performs at least one of on/off of projection, selection of an image to be projected, and scheduled operation, based on the duty ratio of the PWM signal.
Control system according to claim 7. The PWM signal is a dimming signal used for dimming the lighting fixture or a toning signal used for toning the lighting fixture,
Control system according to claim 6 or 8 . The projector further includes a storage unit that stores image information of the image to be projected .
A control system according to any one of claims 1 to 9 . The signal input unit has a first terminal to which a first signal line for inputting the lighting control signal from the lighting controller is connected,
A control system according to any one of claims 1 to 10 . The projector further includes a signal output unit for outputting the lighting control signal input to the signal input unit to the outside of the projector.
A control system according to any one of claims 1 to 11 . The signal output unit has a second terminal connected to a second signal line for outputting the lighting control signal input to the signal input unit to the outside of the projector,
13. Control system according to claim 12 .

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