JP5017478B1 - Natural turf rearing lighting device for stadium and stadium display device with natural turf rearing lighting device - Google Patents

Abstract

A natural turf breeding and illuminating device for a stadium that can be used as a lighting device or a display device in a stadium, and can improve and repair the damage of a natural turf that has been damaged by the competition at a speed faster than a normal natural natural restoration speed. A stadium display device with a turf growing lighting device is provided.
An illuminating device 1 having a light source composed of red, green, and blue light emitting elements belonging to an emission wavelength band having a full color display function and arranged at regular intervals, wherein a housing 2 is undulating and movable. Normally, it functions as a lighting device in the field in a standing state, and in a prone state, it functions as a natural turf breeding lighting device that irradiates the natural turf at a specific position with light from a light emitting element to promote and restore the natural turf. In order to function as a natural turf growing lighting device, the wavelength of red light of the light emitting element was set to 650 nm to 670 nm, and the wavelength of blue light was set to 460 nm to 480 nm.
[Selection] Figure 1

Description

  The present invention relates to a natural turf growing and lighting device for a stadium used in a stadium such as a soccer field, a baseball stadium, a golf course, and a large athletic field, and a stadium display device with a natural turf growing and lighting device. The turf turf turf turf turf turf turf turf turf and natural turf nurturing can be used as a lighting device or display device in the stadium, and the natural turf damaged by the competition can be repaired and repaired faster than the natural natural restoration speed. The present invention relates to a stadium display device with a lighting device.

  Conventionally, in terms of horticultural technology, the method of regenerating natural turf by repairing damaged grass marks that were physically damaged or bare ground due to plant diseases or competitor spikes was as follows. . For example, in a stadium such as a soccer field, cut the damaged natural turf by cutting the lawn surface deeply with a cutter knife radially from the center of the damaged part of the natural turf, and replace it with a relatively vigorous and well-grown lawn part. It was generally done. On the other hand, the cut natural turf is cured at another place and then used again as a natural turf at the stadium. Restoration of natural turf took at least a month even in the growing season with half of the turf remaining.

  In recent years, a plant growing apparatus has been disclosed in which a plurality of light emitting diodes are electrically connected and energized to promote the growth of a curing turf and irradiate light on a plant such as natural turf (Patent Document 1). In addition, a technique that is a lawn laying material is disclosed (Patent Document 2). This technique is a technique in which a curing laying material that covers a lawn surface is provided on a lawn surface that requires curing, and a light emitting device for irradiating the lawn surface with light is installed on the back side of the curing laying material. This light emitting device uses a light emitting diode as a light source, specifies the wavelength of red light, and irradiates natural grass with about 600 to 700 nm of light to cure natural grass, thereby shortening the natural grass curing period. Technology.

  In addition, a lighting assembly used for growing plants in a facility including an indoor stadium having natural turf is disclosed (Patent Document 3). This lighting assembly includes at least one light emitting diode as a light source. When the light emitting diode is blue, the wavelength of “blue” light is 400 to 470 nm, and when it is red, the wavelength of “red” light is 630. It is a technique disclosed to be 700 nm. However, all of these disclosed technologies are all dedicated machines for curing natural turf, and can be used for other purposes such as lighting devices and display devices in combination with the use of the stadium, and can cure natural turf. It wasn't.

JP 2005-31444 A JP 2007-224545 A Special table 2010-536156

  In order to solve such a conventional problem, the present invention provides a natural turf growing and lighting device for a stadium and a natural turf growing lighting device used in a stadium such as a soccer field, a baseball field, a golf field, and a large athletic field. A natural turf for a stadium that can be used as a lighting device or a display device in a stadium, and can improve and repair the damage of a natural turf damaged by the competition faster than the normal natural natural restoration speed. We intend to provide a stadium display device with a cultivating and lighting device and a natural turf cultivating lighting device.

  That is, the invention according to claim 1 of the present invention is an illuminating device having a light source composed of red, green, and blue light emitting elements that belong to a light emission wavelength band having a full color display function and are arranged at regular intervals. It can be raised and lowered, and normally functions as an illuminating device in an upright position. In the prone state, the natural turf at a specific position is irradiated with light from a light emitting element to promote and repair the growth of the natural turf. In order to function as a natural turf growing lighting device and to function as a natural turf growing lighting device, in a stadium such as a soccer field where the wavelength of red light of the light emitting element is 650 nm to 670 nm and the wavelength of blue light is 460 nm to 480 nm. It is intended to provide a natural turf rearing and lighting device for a stadium to be used.

  The invention according to claim 2 of the present invention has a light source composed of red, green, and blue light emitting elements belonging to a light emission wavelength band having a full color display function and arranged at regular intervals, and used as a natural turf growing lighting device. The display device can be switched between when used as a display device, and the housing can be raised and lowered, and usually has a display function in the field in an upright state. On the other hand, it functions as a natural turf growing lighting device that promotes and repairs natural turf growth by irradiating light from the light emitting device. In order to function as a natural turf growing lighting device, the wavelength of red light of the light emitting device is 650 nm to 670 nm. And a stadium display device with a natural turf breeding lighting device for use in a stadium such as a soccer field where the wavelength of blue light is 460 nm to 480 nm. It is intended.

In the invention according to claim 3, the turf growing illumination internal signal is sent to the chromaticity correction unit, latched by the RGB DATA latch unit, and then latched by the arithmetic processing unit, and the chromaticity written in the storage unit Calculation of the correction coefficient and generation of corrected emission data, sending this corrected emission data to the data memory, then storing the corrected emission data in the data memory in units of frames, and writing and reading of the corrected emission data is controlled by the microprocessor. , this store has been corrected emission data is supplied to the constant current driver, and sends a control signal from the microprocessor to the brightness correction data memory, the luminance correction data is supplied to the constant current driver, constant current driver is La, luminance The pulse width changes for the amount of current determined by the correction data and for the time determined by the correction flash data. In by driving the light emitting element display, relates to natural turf growing combined illumination device for stadium according to claim 1, characterized in that the switchable said a natural grass growing lighting device and the lighting device.

In the invention according to claim 4, the turf growing illumination internal signal is sent to the chromaticity correction unit, latched by the RGB DATA latch unit, and then latched by the arithmetic processing unit, and the chromaticity written in the storage unit Calculation of the correction coefficient and generation of corrected emission data, sending this corrected emission data to the data memory, then storing the corrected emission data in the data memory in units of frames, and writing and reading of the corrected emission data is controlled by the microprocessor. , this store has been corrected emission data is supplied to the constant current driver, and sends a control signal from the microprocessor to the brightness correction data memory, the luminance correction data is supplied to the constant current driver, constant current driver is La, luminance The pulse width changes for the amount of current determined by the correction data and for the time determined by the correction flash data. In by driving the light emitting element display, relates with natural grass growing illumination device stadium display apparatus according to claim 2, characterized in that the switchable said a natural grass growing illumination device and the display device.

  According to the natural turf growing and illuminating device for a stadium used in a soccer field or a baseball field according to claims 1 to 4 of the present invention, and the stadium display device with a natural turf growing and illuminating device, the chromaticity is usually corrected. It can be used as a lighting device or a stadium display device, and can also be used as a natural turf growing and lighting device and a stadium display device with a natural turf growing lighting device capable of curing natural turf in stadiums such as soccer fields and baseball fields. Can do.

BRIEF DESCRIPTION OF THE DRAWINGS (a) is a perspective view which shows the natural turf growing and combining lighting device for stadiums of embodiment of this invention, (b) is a side view of the natural turf growing and combining lighting device for stadiums of (a). It is a perspective view which shows the example of a change of the natural turf cultivation and lighting apparatus for stadiums of FIG. It is explanatory drawing of an example of the RGB arrangement | sequence of the natural turf cultivation and lighting apparatus for stadiums of this embodiment, and a stadium display apparatus. FIG. 2 is an explanatory diagram of a use state of the natural turf growing and lighting device for a stadium of FIG. 1 during natural turf curing. FIG. 2 is an explanatory diagram of a use state of the natural turf growing and lighting device for a stadium of FIG. 1 during natural turf curing. FIG. 3 is an explanatory diagram of a use state of the natural turf growing and lighting device for a stadium of FIG. 2 during natural turf curing. (A) is a perspective view which shows the stadium display apparatus of embodiment of this invention, (b) is a side view of the stadium display apparatus of (a). FIG. 8 is an explanatory diagram of a use state of the stadium display device of FIG. 7 during natural turf curing. FIG. 8 is an explanatory diagram of a use state of the stadium display device of FIG. FIG. 8 is an explanatory diagram of a use state of the stadium display device of FIG. 7 during natural turf curing. 8 is a signal flow diagram of the stadium display device of FIG. It is a circuit diagram of the chromaticity correction function of the natural grass breeding and illuminating device for stadiums and the stadium display device of the embodiment of the present invention. It is explanatory drawing of the circuit block diagram of the stadium display apparatus of embodiment of this invention. It is the example of a change of the circuit block diagram of the natural turf cultivation and lighting apparatus for stadiums and a stadium display apparatus of embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. Figures 1 and 2 show a natural grass turf rearing and lighting device for a stadium (1) (hereinafter referred to as "the stadium") used in a stadium such as a soccer field, a baseball field, a golf field, and a large athletic field (hereinafter referred to as "the stadium"). An overview of the lighting device (abbreviated as “1”) is shown.

  The illuminating device (1) belongs to a light emission wavelength band having a full color display function as shown in FIG. 3 (a), and is arranged on a matrix at a predetermined interval, red (R), green (G), and blue (B). A light emitting element light source (L) composed of the above light emitting elements is provided on the front surface (1a). As the light emitting element, a light emitting diode (LED) or organic electroluminescence (organic EL) can be used. In addition, when using LED as a light emitting element, as shown in the right side partial enlarged view at the lower part of FIG. 3, the LED light source (L) is a discrete array of RGB separate LEDs per pixel, or the lower part of FIG. As shown in the left-side partial enlarged view, a 3-in-1 type LED in which RGB consisting of one chip is housed in one package may be used. Any order of RGB may be used. Hereinafter, although a light emitting element is demonstrated using LED, in this invention, a light emitting element is not limited to LED, Other light emitting elements, such as organic EL, can also be used.

  The illuminating device (S1) shown in FIG. 1 includes drive cylinders (3, 3) on both the left and right sides of the back surface (2b) of the rectangular housing (2). The drive cylinders (3, 3) are fixed to the left and right sides of the cylinder (4), the rod (5) slidably inserted into the cylinder (4), and the back surface (2b) of the housing (2). Sheet metal (6), and a plate (8) extending in a direction perpendicular to the back surface (2b) on the left and right of the lower end of the back surface (2b) of the housing (2). A half-moon shaped clasp (7) is attached to the upper surface of the plate (8).

  The drive cylinders (3, 3) are provided to be inclined so as to connect the housing (2) and the plate (8). The lower end portion of the cylinder (4) is rotatably fixed to the clasp (7) via a T-shaped convex piece (9). The tip of the rod (5) is formed in a T-shape, and the tip (5a) is fitted in a crescent-shaped long hole (6a) formed in the sheet metal (6, 6). The tip (5a) of the rod (5) is movable in the long hole (6a) while being fitted in the long hole (6a). Thereby, as shown in FIG. 4, as for a illuminating device (S1), a rod (5) slides with respect to a cylinder (4), and a housing (2) can be raised and lowered freely. The means for allowing the casing (2) to be raised and lowered is not limited to the drive cylinders (3, 3).

  Moreover, the illuminating device (S1) has wheels (10) provided on both sides of the housing (2). As shown in FIG. It is free to move. The wheel (10) can be rotated manually or by a driving device such as a motor. Thereby, the illuminating device (S1) can move the turf ground plane manually or can move the turf ground plane by self-propelled movement.

  In the illuminating device (S2) shown in FIG. 2, a plurality of (two) housings (2) are fixed to a quadrangular frame (12), and casters ( 13) is provided. Thereby, the illuminating device (S2) is movable on the natural turf (11) by the caster (13) in the prone state shown in FIG. The caster (13) can be folded upward as indicated by an arrow in FIG. Further, in the lighting device (S2), a rectangular plate member (14) is fixed to a corner of the frame (12), and the drive cylinder (3, 3) similar to the lighting device (S1) is attached to the plate member (14). 3) is attached via sheet metal (6, 6). Thereby, as for the illuminating device (S2), a rod (5) slides with respect to a cylinder (4) in the state which folded the caster (13), and the housing (2) can be raised and lowered freely.

  As shown in FIGS. 1 and 2, the lighting device (1) configured as described above has the housing (2) supported by the drive cylinders (3, 3) in an upright state. Normally, in the upright state, The light from the LED as the interior illumination (15) illuminates the front in the horizontal direction or the like, thereby functioning as an interior illumination device.

  In addition, as shown in FIG. 4, the lighting device (1) is irradiated with LED light as turf breeding illumination (16) on the natural turf (11) at a specific position in a state where it is used at an angle. It functions as a natural turf growing lighting device that promotes and restores the growth of turf (11).

  Moreover, as shown in FIGS. 5 and 6, the lighting device (1) has a lawn breeding illumination (16) with respect to the natural turf (11) at a specific position in a lying state, that is, in a state where the LED light source (L) faces downward. It functions as a natural turf growing lighting device that promotes and restores the growth of natural turf (11) by irradiating the LED light. In FIGS. 5 and 6, the lighting device (1) omits the drive cylinders (3, 3), but the plate provided with the drive cylinders (3, 3) on the housing (2) or the frame (12). It may be made detachable from the member (14), and may be used as a natural turf growing lighting device with the drive cylinder (3, 3) removed.

  The caster (13) may be one that does not have an actuator. However, if the caster (13) is one that has an actuator, the chassis (2) is self-propelled so that the turf ground surface can be evenly distributed at a constant speed for a certain time (NS direction) (In the WE direction), and can contribute to the curing of the entire ground as well as the natural grass (11) at a specific position.

  The amount of light necessary for the growth of natural turf (11) is controlled by the amount of applied current. It is desirable to keep the distance (d) between the LED light source (L) and the natural turf surface from several centimeters to several tens of centimeters.

  Further, FIG. 7 shows the configuration of a stadium display device with a natural turf growing lighting device (hereinafter abbreviated as “stadium display device”) according to an embodiment of the present invention. As shown in FIG. 3, the stadium display device (21) includes red (R), green (G), and blue (B) that belong to a light emission wavelength band having a full-color display function and are arranged on a matrix at regular intervals. A light emitting element light source (L) made of a light emitting element is provided on the front surface (21a). In addition, when using LED as a light emitting element, as shown in the right side partial enlarged view at the lower part of FIG. 3, the LED light source (L) is a discrete array of RGB separate LEDs per pixel, or the lower part of FIG. As shown in the left-side partial enlarged view, a 3-in-1 type LED in which RGB consisting of one chip is housed in one package may be used. Any order of RGB may be used.

  In addition, as shown in FIG. 7A, the stadium display device (21) has drive cylinders (3, 3) similar to the lighting device (1) on the left and right sides of the back surface (22b) of the housing (22). Is provided. Thereby, as shown in FIG. 8, the rod (5) slides with respect to the cylinder (4), so that the housing (22) can be raised and lowered freely. In addition, the means which makes the housing (22) undulate freely back and forth is not limited.

  As shown in FIG. 7 (b), the stadium display device (21) configured as described above has the housing (22) supported by the drive cylinders (3, 3) in an upright state. In the state, the LED light as the display light (23) illuminates the front in the horizontal direction or the like to function as a display device. When the stadium display device (21) is used as a display device, for example, as shown in FIG. 9, the front surface (21a) is mainly directed to the stand around the ground of the stadium (100) such as a soccer field. Used in.

  Further, as shown in FIG. 8, the stadium display device (21) is used as a turf breeding illumination (16) with respect to the natural turf (11) at a specific position in a state in which the housing (22) is tilted. The growth of the natural turf (11) can be promoted and repaired by irradiating the LED light, and it functions as a natural turf growing lighting device.

  When the stadium display device (21) is used as a natural turf breeding lighting device, as shown in FIG. 10, a rectangular frame (24) formed along the outer periphery of the housing (22) is used as the housing. The caster (25) fitted in (22) and provided at the tip of the leg of the corner of the frame (24) can move the frame (22) on the natural turf (11) in the prone state.

  The caster (25) may be one that does not have an actuator, but if it is one that has an actuator, the chassis (22) is self-propelled so that the grass ground surface can be evenly distributed at a constant speed for a certain period of time (NS direction). (In the WE direction), and can contribute to the curing of the entire ground as well as the natural grass (11) at a specific position. In the stadium display device (21), the drive cylinders (3, 3) are omitted in FIG. 10, but the drive cylinders (3, 3) are detachable from the housing (22), and the drive cylinder ( 3, 3) may be used as a natural turf growing lighting device with the state removed.

  Here, a switch (SW) for switching a signal supplied to the LED is controlled by an MPU (microprocessor). When the lighting device (1) is used as an in-field lighting device, or when the stadium display device (21) is used as a display device, the light of the LED is set to the optimum chromaticity and brightness as the in-field lighting device or display device. It needs to be adjusted.

  The wavelengths required for curing the natural turf (11) are 650 to 670 nm for red (R), 510 to 550 nm for green (G), and 460 to 480 nm for blue (B). Red (R) 615 to 635 nm, Green (G) 510 to 550 nm, Blue (B) 455 to 475 nm, and the chromaticity of the screen content for in-field lighting and display is chromatic when used for natural turf cultivation It is different and uncomfortable. Therefore, the lighting device (1) and the stadium display device (21) of the present invention perform chromaticity correction in order to eliminate chromaticity discomfort when used for lighting in the field, for display and for natural grass cultivation. The purpose of the present invention is to achieve the use of both the natural turf breeding lighting device and the on-site lighting device or display device.

  When the stadium display device (21) according to the present invention is used as a display device, as shown in FIGS. The signal is processed by the signal processing device (31) including the unit (31a), and the processed signal is sent to each LED display unit (40) to display an image.

  Also, when the lighting device (1) of the present invention is used as an in-field lighting device, the lighting signal sent from the lighting signal transmitter is processed by the signal processing device (31), and the processed signal is sent to each LED display unit. It is sent to (40) to perform illumination. Hereinafter, specific processing of chromaticity correction when the lighting device (1) is used as an in-field lighting device and when the stadium display device (21) is used as a display device will be described.

  As shown in the signal flow flowchart of FIG. 12, the video signal or the illumination signal is sent to the chromaticity correction unit (31a), and is sent to the RGB DATA latch unit (32) and latched. The arithmetic processing unit (33) calculates the corrected light emission data by calculating the latched RGB data and the chromaticity correction data memory (34) or the chromaticity correction coefficient (35) written in the color correction coefficient register. Is generated.

  The corrected light emission data is sent to the data memory (36). In the data memory (36), the corrected light emission data is stored in units of frames.

The writing and reading of the corrected light emission data are controlled by the MPU (38). The stored corrected light emission data is supplied to the constant current driver (37). A control signal is sent from the MPU (38) to the luminance correction data memory (39), and the luminance correction data is supplied to the constant current driver (37) .

  The constant current driver (37) drives the LED display unit (40) by PWM (pulse width modulation) for the amount of current determined by the luminance correction data and for the time determined by the corrected light emission data. In this way, the lighting device (1) and the stadium display device (21) are driven as an in-field lighting device or a display device.

  On the other hand, when the lighting device (1) and the stadium display device are used as a natural turf breeding lighting device, the MPU (38) controls the switch (SW) to switch to the turf lighting internal signal (41). In the arithmetic processing unit (33), in order to make the color sensation for turf cultivation the same as that for in-field lighting or display, the calculation processing unit (33) is further calculated by adding a chromaticity correction coefficient. In other words, the arithmetic processing unit (33) generates turf illumination corrected light emission data or non-corrected light emission data.

The corrected light emission data for turf illumination or the non-corrected light emission data is sent to the data memory (36). In the data memory (36), turf illumination corrected light emission data or non-corrected light emission data is stored in units of frames. The writing and reading of the corrected light emission data are controlled by the MPU (38). The stored corrected light emission data or uncorrected light emission data is supplied to the constant current driver (37). A control signal is sent from the MPU (38) to the luminance correction data memory (39), and the luminance correction data is supplied to the constant current driver (37) . The constant current driver (37) displays the LED by PWM (pulse width modulation) for the amount of current determined by the luminance correction data (39) and for the time determined by the illumination light emission data or non-correction light emission data. Part (40) is driven. In this way, the lighting device (1) and the stadium display device (21) irradiate light of a specific wavelength of the LED to promote growth / restoration of natural turf.

  As a result, the lighting device (1) and the stadium display device (21) set the wavelength of the red light of the LED to 660 nm, which is the most effective wavelength for photosynthesis, without affecting the lighting effect and the display effect. It can be used as a natural turf growing lighting device having a wavelength of light of 460 nm which is effective for morphogenesis of natural turf (11).

  Note that the circuit of the chromaticity correction function described above is an example, and the present invention is not limited to this. Hereinafter, the example of a change of the circuit of the chromaticity correction function of the natural turf breeding and illuminating device for stadiums and the stadium display device of the embodiment of the present invention will be described.

  When using a normal stadium display device (21) as a display device, first, as shown in FIG. 13, the digital video signal (serial RGB signal) sent from the video signal transmitter (30) Visual Interface Sent to Field Programmable Gate Array (FPGA) (53) via DVI Receiver (52). The serial RGB signal is converted into a parallel RGB signal by the DVI Receiver (52) of the signal transmission unit (54) and sent to the FPGA (53). In the FPGA (53), the RGB signal is temporarily recorded in the RAM (55) for each frame.

The FPGA (53) loads the data stored in the E ₂ P ROM (56) at power-on to form a pre-programmed circuit. By this circuit, the data recorded in the RAM (55) is processed. Here, the allocation of signals to a plurality of signal receiving units (57) is mainly performed. The subsequent LAN Transmitter (58) converts the parallel RGB signal into 1-bit serial. The 1-bit serial RGB signal is sent to the signal receiver (57) via the LAN cable.

In the signal receiving unit (57), the 1-bit serial RGB signal is converted into a parallel RGB signal by the LAN transmitter (59) and sent to the FPGA (60). The FPGA (60) receives only the signal allocated to itself and records it in the RAM (61) for each frame. The FPGA (60) loads the data stored in the E ₂ P ROM (62) at power-on to form a pre-programmed circuit. By this circuit, the data recorded in the RAM (61) is arithmetically processed, the signal is distributed to the video display unit (63), and the image quality is adjusted.

  The video display unit (63) receives the assigned parallel RGB signal and displays the LED. Here, the Row Driver (64) switches the row of the LED Matrix Array (65) to be displayed. A constant current Drive IC (66) is connected in series to each vertical column of the LED Matrix Array (65), and supplies current to the LED with a pulse width corresponding to the RGB signal. A resistance R (67) externally attached to the constant current Drive IC (66) determines a current value according to the resistance value.

When the lighting device (1) and the stadium display device (21) are used together as a natural turf growing lighting device, as shown in FIG. 14, an operation signal is transmitted from the PC (71) via the 232C cable (72). Is sent to the FPGA (53) of the signal transmission unit (54). Further, the signal is converted and sent to the FPGA (60) of the signal receiver (57). When an operation signal is sent, the data specified by the E ₂ P ROM (62) is newly loaded by the FPGA (60) and the circuit is updated to provide the necessary functions as a natural turf growing lighting device.

  When the circuit is updated, external RGB video signals are cut off and an internal signal with an RGB pulse width that is optimal for natural grass growth is generated. The switch (SW) is operated to switch the external resistor (67) of each constant current Drive IC (66) so that the current amount is optimal for natural turf cultivation. When the switching is completed, the signal transmission unit (54) is disconnected because it becomes unnecessary.

  When the natural turf growing lighting device is switched to the in-field lighting device or the display device, the switching operation is performed from the PC (71), and the signal sending unit (54), the signal receiving unit (57), and the video display unit ( 63) are all connected. At this time, the switch (SW) is operated to switch the external resistor (67) of each constant current Drive IC (66) so that the current amount is optimal for the in-field lighting device or the display device. At this time, since the RGB light emitting element having a wavelength for growing natural turf is used, faithful color reproduction is not performed with the input RGB signal. Therefore, chromaticity conversion is performed by RGB signal conversion, and this RGB signal conversion is performed by multiplying the input signal by a certain coefficient.

  In this invention, the wavelengths of light necessary for curing natural turf (11) are red (R) 650-670 nm, green (G) 510-550 nm, and blue (B) 460-480 nm. The wavelengths used as red (R) 615 to 635 nm, green (G) 510 to 550 nm, and blue (B) 455 to 475 nm are corrected by the control circuit as described above and are used for in-field illumination and display screen content. Correct the chromaticity and natural turf breeding so as not to cause a sense of incongruity. In the present invention, chromaticity correction is performed to eliminate the chromaticity discomfort for in-field lighting, display, and turf growing, and the combined use of both the natural turf growing lighting device and the in-field lighting device or display device can be achieved.

  As described above, the lighting device (1) and the stadium display device (21) according to the embodiment of the present invention can switch between the in-field lighting device or the display device and the natural turf growing lighting device.

  The present invention can be used in a stadium such as a soccer field, a baseball field, a golf field, and a large athletic field, and can illuminate and repair a natural turf that has been damaged by the competition faster than a normal natural natural restoration speed. There is an effect that can be achieved with a field display device.

DESCRIPTION OF SYMBOLS 1 Natural turf rearing and illuminating device 2 Housing 3 Drive cylinder 6 Sheet metal 8 Plate 10 Wheel 11 Natural turf 13 Caster 21 Stadium display device 22 Housing 31 Chromaticity correction part 32 Latch part 33 Arithmetic processing part 34 Chromaticity correction data memory 35 Color Degree correction coefficient 36 Data memory 37 Constant current driver 38 Microprocessor 39 Brightness correction data memory 40 LED display unit 41 Turf growing illumination internal signal 52 Digital visual interface receiver 53 Field programmable gate array 54 Signal transmission unit 55 RAM
56 E ₂ P ROM
57 Signal receiver 58 LAN Transmitter
59 LAN Transmitter
60 field programmable gate array 61 RAM
62 E ₂ P ROM
63 Video display section 64 Row Driver
65 LED Matrix Array
66 Constant Current Drive IC
67 Resistance R
71 pcs
72 232C cable 100 Stadium R Red G Green B Blue L LED light source SW Switch d Distance

Claims (4)

  A lighting device that has a light source consisting of red, green, and blue light emitting elements that belong to an emission wavelength band that has a full color display function and that is arranged at regular intervals. It functions as a lighting device in the field, and in the prone state, it functions as a natural turf growing lighting device that promotes and restores natural turf growth by irradiating the natural turf at a specific position with light from a light emitting element. A natural turf growing and illuminating device for use in a stadium such as a soccer field in which a red light wavelength of a light emitting element is set to 650 nm to 670 nm and a blue light wavelength is set to 460 nm to 480 nm in order to function as a device.   It has a light source consisting of red, green, and blue light-emitting elements that belong to a light emission wavelength band with a full-color display function and are arranged at regular intervals, and can be switched between when used as a natural turf growing lighting device and when used as a display device. It is a display device, and the case is freely raised and lowered, and normally has a display function in the field in an upright state. In a state where it is used at an angle, the natural turf at a specific position is irradiated with light from a light emitting element. A football that functions as a natural turf breeding lighting device that promotes and restores turf growth. In order to function as a natural turf growth lighting device, the red light wavelength of the light emitting element is set to 650 nm to 670 nm, and the blue light wavelength is set to 460 nm to 480 nm. A stadium display device with a natural turf breeding lighting device used in stadiums. Sends the turf growing lighting internal signal to the chromaticity correction unit, latches it with the RGB DATA latch unit, then calculates the RGB data latched by the arithmetic processing unit and the chromaticity correction coefficient written in the storage unit, and corrects light emission Data is generated, this corrected emission data is sent to the data memory, and then the corrected emission data is stored in the data memory in units of frames, and the writing and reading of the corrected emission data are controlled by the microprocessor, and the stored corrected emission data was supplied to the constant current driver, and sends a control signal from the microprocessor to the brightness correction data memory, the luminance correction data is supplied to the constant current driver, constant current drivers to the al, the amount of current which is determined by the luminance correction data In addition, the light emitting element display unit is driven by pulse width modulation for the time determined by the corrected light emission data. By the natural grass growing lighting device and the lighting device and the stadium for natural grass growing combined lighting apparatus according to claim 1, characterized in that the switchable. Sends the turf growing lighting internal signal to the chromaticity correction unit, latches it with the RGB DATA latch unit, then calculates the RGB data latched by the arithmetic processing unit and the chromaticity correction coefficient written in the storage unit, and corrects light emission Data is generated, this corrected emission data is sent to the data memory, and then the corrected emission data is stored in the data memory in units of frames, and the writing and reading of the corrected emission data are controlled by the microprocessor, and the stored corrected emission data was supplied to the constant current driver, and sends a control signal from the microprocessor to the brightness correction data memory, the luminance correction data is supplied to the constant current driver, constant current drivers to the al, the amount of current which is determined by the luminance correction data In addition, the light emitting element display unit is driven by pulse width modulation for the time determined by the corrected light emission data. By the natural grass growing illumination device and the display device and the natural grass grown with lighting system stadium display apparatus according to claim 2, characterized in that the switchable.

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