JP7308487B2 - LIGHTING EQUIPMENT, LIGHTING CONTROL METHOD AND LIGHTING CONTROL PROGRAM - Google Patents

Description

The present invention relates to lighting fixtures, lighting control methods, and lighting control programs.

Lighting control can be performed in various facilities regardless of indoors or outdoors. Outdoor lighting control can be performed, for example, in lighting fixtures that illuminate public spaces, structures, etc. at night. Indoor lighting control can be performed, for example, in lighting equipment such as stages and event venues. DMX (Digital Multiplex) communication, which is a one-way communication method described in Japanese Unexamined Patent Application Publication No. 2002-200001, is known as communication used for these lighting controls.

In the DMX communication described in Patent Literature 1, multiple lighting fixtures are daisy-chained to a controller. The controller periodically outputs a DMX signal with a DMX frame of 512 channels. A DMX signal carries 1 byte, or 8 bits of data in each channel of a DMX frame. Each lighting fixture is assigned a different channel. The channel assigned to one lighting fixture can also be a continuous multiple channel. The controller uses the channel assigned to each lighting fixture of the DMX signal to transmit data according to the control contents of the corresponding lighting fixture.

Further, in the DMX communication described in Patent Document 1, an address indicating a channel assigned to each lighting fixture is set to each lighting fixture. Each lighting fixture receives the DMX signal, acquires the data of the channel corresponding to the address set to itself, and controls its own lighting state with the control content corresponding to the data. The lighting state controlled by the lighting equipment can be, for example, the emission intensity, color temperature, focus, irradiation direction, etc. of the illumination light emitted by the light source for each channel of the acquired data.

JP 2017-527073 A

In DMX communication, the DMX signal can be updated at a refresh rate on the order of 44 Hz. Therefore, in the lighting control using the DMX signal, it is possible to dynamically change the illumination by the lighting equipment by changing the control contents of the lighting equipment at high speed. On the flip side, if a lighting fixture fails to receive the DMX signal, it will not be able to continue dynamically changing the lighting provided by the lighting fixture. In particular, when the controller and lighting equipment are wirelessly connected, a change in the communication environment can easily cause the lighting equipment to become unable to receive DMX signals.

The present invention has been made in view of such problems of the prior art. It is an object of the present invention to allow the dynamic change of illumination by a lighting fixture to continue even if the lighting fixture is unable to receive DMX signals.

In order to solve the above problems, a lighting fixture according to a first aspect of the present invention includes a receiver for receiving a DMX signal provided with a plurality of channels for transmitting control data of a lighting load; an address setting unit in which a plurality of sets of consecutive channels to be obtained from which data is to be obtained is set; an acquisition unit for acquiring data respectively, and the control of the continuous channels of each set acquired by the acquisition unit for the illumination state of the lighting load during a reception abnormal period in which the reception unit cannot normally receive the DMX signal. and a transition control unit that transitions between states respectively corresponding to data.

A lighting control method according to a second aspect of the present invention includes a receiving step of receiving a DMX signal provided with a plurality of channels for transmitting control data of a lighting load; an acquiring step of respectively acquiring the control data from a plurality of sets of continuous channels targeted for data acquisition; between states respectively corresponding to the control data of the respective sets of consecutive channels obtained in the obtaining step.

A lighting control program according to a third aspect of the present invention comprises, in a computer, a receiving step of receiving a DMX signal provided with a plurality of channels for transmitting control data of a lighting load; an obtaining step of obtaining the control data from each of the plurality of sets of continuous channels targeted for obtaining the control data; a transition control step of transitioning the illumination state of between states respectively corresponding to the control data of the respective sets of consecutive channels acquired in the acquiring step.

According to the present disclosure, it is possible to allow lighting fixtures to continue dynamically changing lighting even when the lighting fixtures are no longer able to receive DMX signals.

1 is a block diagram showing the configuration of a lighting control system according to this embodiment; FIG. FIG. 2 is a block diagram showing a schematic configuration of a controller and a lighting fixture in FIG. 1; FIG. FIG. 3 is an explanatory diagram showing a communication protocol of DMX communication using a DMX signal output from the signal output section of FIG. 2; 4 is an explanatory diagram showing an example of the frame structure of the DMX signal of FIG. 3; FIG. FIG. 4 is an explanatory diagram showing a case where the controller of FIG. 1 transmits control data for three lighting fixtures in one frame of the DMX signal of FIG. 3; FIG. 5 is an explanatory diagram showing an example of a frame structure of a DMX signal when data used for lighting control of a lighting fixture during a DMX signal reception abnormal period is transmitted in an empty channel of the frame of FIG. 4 during a DMX signal normal reception period; . 6 is a flow chart showing an example of a procedure of a lighting control method performed in the lighting fixture of fixture 1 of FIG. 5. FIG. FIG. 7 is a graph showing a process of determining a transition pattern of a lighting state of a lighting fixture that takes the required time of the time data from the power curve corresponding to the pattern data of the DMX signal of FIG. 6;

Hereinafter, this embodiment will be described with reference to the drawings. The same reference numerals are given to the same or equivalent parts or components throughout each drawing.

The embodiments shown below are examples of apparatuses and the like for embodying the technical idea of the present invention. The technical idea of the present invention does not specify the material, shape, structure, arrangement, function, etc. of each component as follows.

As shown in FIG. 1, the lighting control system 1 of this embodiment includes a plurality of system-specific lighting fixtures L11 to L1n, L21 to L2n, and L31 to L3n, and a controller 2 . This lighting control system 1 can be operated in various facilities regardless of indoors or outdoors.

Lighting fixtures L11 to L1n, L21 to L2n, and L31 to L3n (hereinafter sometimes collectively referred to as lighting fixtures L) are arranged in a predetermined space according to a plurality of systems. Each lighting fixture L is daisy-chained to the controller 2 via a DMX signal transmission line. The transmission path may be either wired or wireless as long as it can transmit DMX signals.

The controller 2 outputs a DMX signal to each lighting fixture L. A DMX signal is a kind of digital dimming signal for defining the lighting state of each lighting fixture L. FIG. The controller 2 can transmit data according to the lighting conditions of the lighting fixtures L, such as the intensity of light emitted, the color temperature of the emitted light color, the irradiation angle of the lighting light, the irradiation direction, etc., to each lighting fixture L using a DMX signal. . The frame structure of the DMX signal will be described later.

Next, the configuration of the controller 2 and each lighting fixture L will be described. First, as shown in FIG. 2, the controller 2 of this embodiment has a signal output section 21, a timer section 22, a storage section 23, a control section 24, a display section 25, a touch panel section 26, and a display driver section 27. there is

A signal output unit 21 outputs a DMX signal. The DMX signal may be formatted according to the DMX512A communication protocol, for example. As shown in FIG. 3, the DMX signal S is a signal in which frames F are intermittently repeated with a break period B interposed between them.

The detailed format of the frame F of the DMX signal S will now be described. Frame F has 513 slots. As shown in FIG. 4, the leading slot of frame F is assigned a start code SC that defines the lighting fixture L to be controlled by the DMX signal S. As shown in FIG. In addition, 512 slots other than the head of frame F are assigned to 512 channels CH for data transmission. Each channel CH is assigned an address from 1 to 512 in order from the first slot side.

The DMX signal S can transmit data of 1 byte, ie, 8 bits each in 512 channels CH of each frame F. FIG. Each channel CH can be used to transmit control data and the like for each lighting fixture L connected to the controller 2 . It is also possible to transmit control data for a plurality of lighting fixtures L in one frame F at the same time.

For example, assuming that lighting fixtures L11 to L1n for each system shown in FIG. Assume that a DMX signal S is sent to each lighting fixture L of 3 . In this case, in general DMX communication, control data D1 to D3 for each lighting fixture L is generated using channels CH with mutually different addresses in the DMX signal S transmitted from the controller 2 to each lighting fixture L of fixtures 1 to 3. is sent once.

In the example shown in FIG. 4, 4 bytes of control data D1 for lighting fixture L of fixture 1 are transmitted on each channel CH of consecutive addresses 5 to 8 in frame F. FIG. Also, 5-byte control data D2 for the lighting fixture L of the fixture 2 is transmitted on each channel CH of consecutive addresses 10 to 15 in the same frame F. FIG. Furthermore, 10 bytes of control data D3 for lighting fixture L of fixture 3 are transmitted on each channel CH of consecutive addresses 20 to 30 in the same frame F. FIG. These control data D1 to D3 are used to control the lighting state of each lighting fixture L during the normal reception period in which each lighting fixture L can receive the DMX signal S normally.

When complying with the DMX512A communication protocol, the maximum refresh frequency of the DMX signal S is 44 Hz. That is, the signal output unit 21 shown in FIG. 2 can update the contents of the data transmitted in each channel CH of the DMX signal S 44 times per second. Therefore, each of the control data D1-D3 can be used to control the lighting state of each lighting fixture L during the normal reception period during which each lighting fixture L of fixtures 1-3 can normally receive the DMX signal.

Let us return to the description of the configuration of the controller 2 . The timer 22 shown in FIG. 2 measures time by generating a clock pulse. The clock unit 22 can be configured by, for example, an independent IC (integrated circuit) dedicated to clocking. The storage unit 23 stores, for example, schedule information for lighting control of each lighting fixture L, and the like. The storage unit 23 can be configured by, for example, a nonvolatile semiconductor memory device such as a flash memory.

The control unit 24 causes the signal output unit 21 to output a DMX signal in which data corresponding to the content of lighting control of each lighting device L is arranged in the channel CH corresponding to each lighting device L. FIG. The control unit 24 can be configured by, for example, a one-chip microcomputer with a built-in memory.

The display section 25 and the touch panel section 26 can constitute a man-machine interface of the controller 2 . The display unit 25 is driven by the display driver unit 27 to display various information. The touch panel unit 26 detects a touch operation of an operation button or the like displayed on the display unit 25 and outputs a detection signal to the control unit 24 .

Next, each lighting fixture L of this embodiment has a lighting load 31 , a signal receiving section 32 , a lighting circuit section 33 , a control section 34 and a storage section 35 .

The lighting load 31 has, for example, a light source (not shown) that combines a plurality of types of LEDs or organic EL elements with different emission colors. The light source has a dimming function. The light source can individually adjust the emission intensity of RGBW by the dimming function. Therefore, the light source can adjust the emission intensity and color temperature of the illumination light.

Moreover, the illumination load 31 may further include an optical unit (not shown) that optically processes the illumination light emitted by the light source. The optical unit may have an optical path adjustment function such as a focus adjustment mechanism, a tilt pan adjustment mechanism, or the like. An optical unit having an optical path adjustment function can adjust, for example, the focus and irradiation direction of illumination light, that is, each angle of focus, tilt, and pan.

The signal receiving unit 32 receives the DMX signal output by the signal output unit 21 of the controller 2 from the DMX signal transmission line. The lighting circuit unit 33 includes a power supply unit that converts commercial power into power of a predetermined current used in the lighting circuit unit 33, and a power supply circuit unit that supplies the power converted by the power supply unit to the lighting load 31 (both are not shown). without).

The controller 34 can be configured by, for example, a general-purpose lighting control microcomputer. The control unit 34 acquires the data of the channel CH corresponding to its own lighting fixture L in the frame F of the DMX signal S received by the signal receiving unit 32 . Further, the control unit 34 uses part of the acquired data during normal reception in which the signal receiving unit 32 normally receives the DMX signal S, and controls the power supplied from the lighting circuit unit 33 to the lighting load 31. Control.

The storage unit 35 can be configured by, for example, a non-volatile semiconductor memory device such as a flash memory. The storage unit 35 stores the setting information of the channel CH from which the control unit 34 acquires the data corresponding to its own lighting fixture L in the frame F of the DMX signal S.

For example, the storage unit 35 of the lighting fixture L of the fixture 1 shown in FIG. (corresponding to continuous channels) are stored as setting information. The data of each channel CH of the control data D1 can be used for lighting control, for example, as an 8-bit pixel value for each RGBW color of the light source in the lighting load 31 of the lighting fixture L of the lighting fixture 1 .

Also, in the storage unit 35 of the lighting fixture L of the fixture 2 shown in FIG. is stored as The data of each channel CH of the control data D2 is, for example, an 8-bit pixel value for each color of RGBW of the light source in the lighting load 31 of the lighting fixture L of the fixture 2, and a control value of the focus adjustment mechanism of the optical unit, It can be used for lighting control.

Further, addresses 20 to 30 (corresponding to a plurality of sets of continuous channels) of channels CH for transmitting control data D3 shown in FIG. stored as information. The data of each channel CH of the control data D3 is, for example, an 8-bit pixel value for each color of RGBW of the light source in the illumination load 31 of the lighting fixture L of the fixture 3, and the control value of the focus adjustment mechanism and tilt pan adjustment mechanism of the optical unit. can be used for lighting control as

These setting information may be composed of, for example, a set of the first address among consecutive addresses corresponding to each of the control data D1 to D3 and the address length indicating the number of consecutive channels from the first address. In particular, when the amount of control data D1-D3 is large and a large number of channels CH are required to transmit the control data D1-D3, the setting information should be configured by a set of the head address and the address length. , it is possible to suppress an increase in the data amount of the setting information.

When the setting information is composed of a set of the head address and the address length, the setting information of the channel CH for transmitting the control data D1 is composed of the head address=5 and the address length=4. The setting information of the channel CH for transmitting the control data D2 and D3 is composed of head addresses=10 and 20 and address lengths=5 and 10, respectively.

The setting information can be input to the control unit 34 from, for example, a setting device (not shown) connected to the control unit 34 and stored in the storage unit 35 . The setting device may be, for example, a device using a mechanical switch such as a DIP switch, or an input device such as a touch panel having a display.

If the signal output unit 21 of the controller 2 and the signal reception unit 32 of the lighting fixture L are compatible with the RDM (Remote Device Management) communication protocol, setting information is sent to the control unit 34 by remote control from the controller 2. It may be input and stored in the storage unit 35 . In this case, the RDM signal may be transmitted from the controller 2 to the lighting fixture L using the transmission path of the DMX signal as the transmission path of the two-way RDM communication.

The controller 2 intermittently and repeatedly transmits the DMX signal S to each lighting fixture L every maximum refresh period. Therefore, the controller 2 changes the contents of the control data D1 to D3 of the DMX signal S with the lapse of time so that the lighting of the lighting load 31 controlled by the control section 34 of each lighting fixture L via the lighting circuit section 33 is controlled. The state can be changed dynamically.

However, for example, if each lighting fixture L cannot receive the DMX signal S from the controller 2 normally due to a communication error, even if the contents of the control data D1 to D3 are changed over time, each lighting fixture L can be controlled. The unit 34 becomes unable to obtain the control data D1 to D3. Then, the control unit 34 of each lighting fixture L performs control to set a predetermined lighting state at the time of an error.

Since the control data D1 to D3 cannot be acquired, the lighting state at the time of error is generally a static lighting state such as off, half-lighting, or full-lighting. Therefore, the lighting fixture L during the abnormal reception period in which the DMX signal S cannot be received normally cannot dynamically change the lighting state. The break period B of the DMX signal S is not included in the abnormal reception period of the DMX signal S.

Communication anomalies of the DMX signal S may be caused, for example, by a poor connection of a DMX cable (not shown) that daisy-chains each lighting fixture L to the controller 2 . Further, when the transmission path of the DMX signal S is wireless, there is a possibility that communication failure of the DMX signal S occurs due to poor reception of the wireless DMX signal S by the signal receiver 32 of each lighting fixture L. Furthermore, regardless of whether the communication is wired or wireless, noise may be superimposed on the DMX signal S, which may cause a communication abnormality of the DMX signal S.

Therefore, in the lighting control system 1 of the present embodiment, the idle channel CH of the frame F is used to continuously dynamically change the lighting state of each lighting fixture L even during the abnormal reception period of the DMX signal S. The data are sent in the DMX signal S together with the control data D1-D3. For example, in the DMX signal S shown in FIG. 4, the vacant channels CH are located after address 31 of the frame F. Using this empty channel CH, the data used for the lighting control of the lighting fixture L during the abnormal reception period of the DMX signal S is transmitted during the normal reception period of the DMX signal S and stored in the storage unit 35 of the lighting fixture L. Keep

In the example shown in FIG. 6, for lighting fixture L of fixture 1, together with the first 4-byte control data D1, in each empty channel CH at addresses 35-38 of frame F, the second 4-byte Send control data D4. Also, in each empty channel CH of addresses 509 and 510 near the end of frame F, 1-byte time and pattern data D5 and D6 used when changing the lighting state of lighting fixture L of fixture 1 are controlled. It is transmitted together with data D1 to D4.

Of these, the second control data D4 transmitted on each of the empty channels CH of addresses 35 to 38 has different content from the illumination state corresponding to the first control data D1 transmitted on the channels CH of addresses 5 to 8. and The data of each channel CH of the second control data D4 is, for example, the same as the control data D1, as an 8-bit pixel value for each RGBW color of the light source in the lighting load 31 of the lighting fixture L of the fixture 1, lighting control can be used for

The control data D1 is used to control the lighting state of each lighting fixture L during the normal reception period during which the lighting fixture L of the fixture 1 can normally receive the DMX signal. On the other hand, the control data D4 is used together with the control data D1 to control the lighting state of each lighting fixture L during the abnormal reception period in which the lighting fixture L of the fixture 1 cannot receive the DMX signal S normally. The two control data D1 and D4 are used for controlling the transition of the lighting state of each lighting fixture L between the state corresponding to the first control data D1 and the state corresponding to the second control data D4.

Also, the time data D5 transmitted through the empty channel CH (corresponding to the time setting channel) of the address 509 is used to determine the required time t required for the lighting state transition of the lighting fixture L. FIG. The time data D5 can be, for example, an 8-bit value representing the required time t required for the lighting state transition.

Furthermore, the pattern data D6 transmitted on the empty channel CH (corresponding to the pattern setting channel) of the address 510 changes the lighting state of the lighting fixture L between the state corresponding to the control data D1 and the state corresponding to the control data D4. It is used to determine the pattern that causes In this embodiment, a plurality of power curves with different multipliers (n) (eg, Y=X̂n) are used as transition pattern candidates. Individual addresses associated with the power curves of the respective candidates are used as the values of the pattern data D6.

When the power curve as the transition pattern of the illumination state is specified by the pattern data D6, the control unit 34 specifies the transition pattern of the illumination state during the required time t from the graph shown in FIG. 8 of the specified power curve. be able to. The graph of FIG. 8 shows the case where the specified power curve is the 2.7th power curve.

The vertical axis of the graph in FIG. 8 represents the state corresponding to the control data D1 and the state corresponding to the control data D4 when the lighting state of the lighting fixture L is transitioned from the other to the other lighting state after the transition. It is the lighting level of the light source of the lighting load 31 . The horizontal axis of the graph in FIG. 8 is the elapsed time since the lighting state of the lighting fixture L began to transition from one of the state corresponding to the control data D1 and the state corresponding to the control data D4 to the other.

The end point of the transition when the lighting level of the light source in the lighting state after the transition is 100% is the refresh period of the DMX signal S, that is, the reciprocal of the refresh frequency of the DMX signal S from the start point of the transition of the lighting state. The time has passed. For example, when the elapsed time is t0 (0≤t0≤t), the lighting level of the light source in the post-transition illumination state is P(t0)% (0≤P(t0) ≤ 100).

If the required time t of the time data D5 is shorter than the refresh cycle of the DMX signal S, the control unit 34 may adjust the lighting level of the light source according to the ratio between the required time t and the refresh cycle. . Further, when the time data D5 is not defined in the DMX signal S, the control unit 34 may cause the lighting state of the lighting fixture L to transition according to the power curve specified by the pattern data D6. Furthermore, if the pattern data D6 is not defined in the DMX signal S, the control unit 34 may cause the lighting state of the lighting fixture L to transition, for example, with the characteristics of a straight line of Y=X.

In the lighting control system 1 of this embodiment, the controller 2 shown in FIG. 2 intermittently and repeatedly transmits the DMX signal S shown in FIG. do. When dynamically changing the lighting state of each lighting fixture L, the controller 2 in FIG. 2 changes the control data D1 to D3 of the DMX signal S shown in FIG. 6 over time.

The content of the control data D4 of the DMX signal S shown in FIG. 6 does not necessarily have to change over time as long as it differs from the content of the control data D1.

Further, in the lighting control system 1 of the present embodiment, the second control of the DMX signal S shown in FIG. The address of channel CH for transmitting data D4 is stored as setting information. As with the setting information of the control data D1 to D3, this setting information may also be composed of, for example, a set of the first address and the address length among consecutive addresses corresponding to the control data D4. When the setting information is composed of a set of the top address and the address length, the setting information of the channel CH for transmitting the control data D4 is composed of the top address=35 and the address length=4.

Further, in the storage unit 35 of the lighting fixture L of the fixture 1 of FIG. 5, information of the address of the channel CH for transmitting the time data D5 and the pattern data D6 of the DMX signal S shown in FIG. 6 is also stored. These pieces of address information are stored in the storage section 35 as the channel CH from which the control section 34 of the lighting fixture L of the lighting fixture L of the fixture 1 acquires the data corresponding to its own lighting fixture L in the frame F of the DMX signal S.

The address information of the channel CH for transmitting each data D5 and D6 is also the same as the setting information of the control data D1 to D3, for example, by a set of the first address and the address length among the addresses corresponding to each data D5 and D6. may be configured. When the address information is composed of a set of the head address and the address length, the address information of the channel CH transmitting the time data D5 is composed of the head address=509 and the address length=1. The address information of the channel CH for transmitting the pattern data D6 is composed of the head address=510 and the address length=1.

The setting information or address information of each of the data D4 to D6 to be stored in the storage unit 35 is, for example, sent from a setting device (not shown) connected to the control unit 34 to the control unit 34 in the same manner as the setting information of the control data D1 to D3. It can be input and stored in the storage unit 35 . Further, when the signal output unit 21 of the controller 2 and the signal reception unit 32 of the lighting fixture L are of specifications compatible with the RDM communication protocol, the setting information or the address of each data D4 to D6 can be remotely controlled from the controller 2. Information may be input to the control unit 34 .

Next, the lighting control method according to the present embodiment performed in each lighting fixture L of the lighting fixture 1 receiving the DMX signal S of FIG. 6 intermittently and repeatedly transmitted by the controller 2 every refresh cycle will be described. As shown in the flowchart of FIG. 7, the lighting control method of this embodiment includes steps of reception, acquisition, storage, normal control, and transition control (steps S1 to S9).

Among these steps, the receiving step of step S1 is a step of receiving the DMX signal S of FIG.

The acquisition step of step S3 in FIG. 7 is that in each lighting fixture L of the fixture 1 during the normal reception period of the DMX signal S in FIG. , respectively. At this time, the control unit 34 acquires data from addresses corresponding to the setting information and the address information of the DMX signal S stored in the storage unit 35 .

The storage step of step S5 in FIG. 7 is a step in which the controller 34 in each lighting fixture L of the fixture 1 stores the data acquired from the DMX signal S in FIG.

Here, the control unit 34 distinguishes the control data D1 acquired from each channel CH of addresses 5 to 8 of the DMX signal S and the control data D4 acquired from each channel CH of addresses 35 to 38 from each other. Each of them is stored in the storage unit 35 . When the past control data D1 and D4 are stored in the storage unit 35, the control data D1 and D4 in the storage unit 35 are updated from the past data to the currently acquired data.

Further, the control unit 34 distinguishes the time data D5 and the pattern data D6 obtained from each channel CH of the addresses 509 and 510 of the DMX signal S from each other and from the control data D1 and D4, and stores them in the storage unit 35. store each.

In the normal control step of step S7 in FIG. 7, during the normal reception period of the DMX signal S in FIG. is a step of controlling the lighting state of the lighting load 31 of the lighting fixture L. This normal control step is not executed during the abnormal reception period in which the signal receiver 32 of each lighting fixture L of the fixture 1 cannot receive the DMX signal S normally.

In the transition control step of step S9 in FIG. 7, the control unit 34 controls the latest control data D1 stored in the storage unit 35 in each lighting fixture L of the fixture 1 during the abnormal reception period of the DMX signal S in FIG. , D4 to control the lighting state of the lighting load 31 of the lighting fixture L. FIG.

Here, the control unit 34 determines the required time t for the transition of the lighting state and the transition pattern of the lighting state according to the contents of the latest time data D5 and the pattern data D6 stored in the storage unit 35. The content changes the lighting state of the lighting fixture L of the fixture 1 . As a result, even if the DMX signal S in FIG. 6 cannot be received normally, the lighting condition of the lighting fixture L of the fixture 1 can continue to dynamically change. This normal control step is not executed during the normal reception period during which the signal receiver 32 can normally receive the DMX signal S in each lighting fixture L of the fixture 1 .

As is clear from the above description, in the lighting control system 1 of the present embodiment, by executing the processing of step S1 in FIG. A receiving step in the control program is implemented. That is, step S1 in FIG. 7 is a process corresponding to the receiving section of the lighting fixture according to the first aspect.

Further, in the present embodiment, the acquisition step in the lighting control method according to the second aspect and the lighting control program according to the third aspect is realized by executing the process of step S3 in FIG. That is, step S3 in FIG. 7 is processing corresponding to the acquisition unit of the lighting fixture according to the first aspect.

Furthermore, in the present embodiment, the storage step in the lighting control method according to the second aspect and the lighting control program according to the third aspect is realized by executing the process of step S5 in FIG. In step S5 of FIG. 7, the storage section 35 for storing the data acquired from the DMX signal S of FIG. 6 corresponds to the storage section of the lighting fixture according to the first aspect.

Further, in the present embodiment, the normal control step in the lighting control method according to the second aspect and the lighting control program according to the third aspect is realized by executing the process of step S7 in FIG. That is, step S7 in FIG. 7 is processing corresponding to the normal control section of the lighting fixture according to the first aspect.

Furthermore, in this embodiment, the transition control step in the lighting control method according to the second aspect and the lighting control program according to the third aspect is realized by executing the process of step S9 in FIG. That is, step S9 in FIG. 7 is processing corresponding to the transition control section of the lighting fixture according to the first aspect.

In the lighting control system 1 described above, the controller 2 provides each lighting fixture L with the control data D1 to D3 used for lighting control during the normal reception period, together with control data D1 to D3 used for lighting control of the fixture 1 during the abnormal reception period. The data D4 is transmitted by the DMX signal S. Also, the control section 34 of the lighting fixture L of the fixture 1 that has received the DMX signal S during the normal reception period acquires the control data D1 and D4 and stores them in the storage section 35 . Then, during the abnormal reception period, the control unit 34 causes the lighting state of the lighting fixture L to transition between the states corresponding to the control data D1 and D4 in the storage unit 35 . Since the contents of the control data D1 and D4 are different from each other, the lighting state of the lighting device L dynamically changes when the lighting state of the lighting device L is changed between the states corresponding to the control data D1 and D4.

Therefore, even if the signal receiving unit 32 cannot intermittently and repeatedly receive the DMX signal S in which the content of the control data D1 changes, the control unit 34 can control the lighting load 31 to correspond to the control data D1 and D4. You can transition between states to dynamically change the lighting state. Therefore, the lighting condition of the lighting load 31 can be dynamically changed during the abnormal reception period of the DMX signal S as well as during the normal reception period.

In addition, in the lighting control system 1 of the present embodiment, the setting information of the control data D1 and D4 stored in the storage unit 35 of the lighting fixture L of the fixture 1 is a set of the head address and address length of the corresponding channel CH. Therefore, if the amount of control data D1 and D4 is large and a large number of channels CH are required to transmit the control data D1 and D4, the setting information is configured by a set of the head address and the address length. By doing so, it is possible to suppress an increase in the data amount of the setting information.

The address information of the time data D5 and the pattern data D6 to be stored in the storage unit 35 of the lighting fixture L of the fixture 1 is also a set of the head address and address length of the corresponding channel CH. The same effect as setting information can be obtained.

Further, in the lighting control system 1 of the present embodiment, together with the control data D4, time data D5 defining a transition pattern and a required time t for transitioning the lighting state of the lighting fixture L of the fixture 1 during the abnormal reception period. and pattern data D6 are transmitted by the DMX signal S. Also, the controller 34 of the lighting fixture L of the fixture 1 that received the DMX signal S during the normal reception period acquires the time data D5 and the pattern data D6 together with the control data D1 and D4, and stores them in the storage section 35. . Then, during the abnormal reception period, the control unit 34 causes the lighting state of the lighting fixture L to transition according to the required time t and the transition pattern corresponding to the time data D5 and the pattern data D6 of the storage unit 35 .

For this reason, it is possible to set the required time t for the transition of the lighting state and the transition pattern when the lighting state of the lighting fixture L of the fixture 1 is changed during the abnormal reception period. It is possible to increase the variation of the dynamic change of

Either one or both of the time data D5 and the pattern data D6 may be excluded from the targets to be transmitted by the DMX signal S.

Further, in the lighting control system 1 of the present embodiment, each time the signal receiving unit 32 of the lighting fixture L of the fixture 1 receives the DMX signal S during the normal reception period, it is used to control the lighting state of the lighting load 31, and , the control unit 34 acquires the control data D1 and stores it in the storage unit 35 . Then, it is used together with the control data D4 to change the lighting state of the lighting fixture L under the control of the control unit 34 during the abnormal reception period.

Therefore, the control data D1 used for dynamically changing the lighting state of the lighting fixture L during the normal reception period is effective for dynamically changing the lighting state of the lighting fixture L during the abnormal reception period. can be utilized.

The embodiments described above disclose the following aspects of the invention.

First, as an invention according to a first aspect, a lighting fixture L including a receiving section 32, an address setting section 35, an acquiring section 34, and a transition control section 34 is disclosed.

Here, the receiver 32 receives the DMX signal S provided with a plurality of channels CH for transmitting the control data D1 to D4 of the lighting load 31. FIG. In the address setting unit 35, a plurality of sets of consecutive channels CH from which the control data D1 and D4 in the DMX signal S are to be obtained are set. The acquiring unit 34 acquires the control data D1 and D4 from each set of consecutive channels CH set in the address setting unit 35 of the DMX signal S received by the receiving unit 32 . The transition control unit 34 causes the lighting state of the lighting load 31 to transition between states respectively corresponding to the control data D1 and D4 of each set of consecutive channels CH acquired by the acquisition unit 34 . The transition control unit 34 causes the lighting state of the lighting load 31 to transition during abnormal reception periods in which the receiving unit 32 cannot receive the DMX signal S normally.

Further, as an invention according to a second aspect, a lighting control method is disclosed that includes a reception step S1, an acquisition step S3, and a transition control step S9. Furthermore, as an invention according to a third aspect, a lighting control program is disclosed that causes a computer to execute a reception step S1, an acquisition step S3, and a transition control step S9.

Here, in the receiving step S1, the DMX signal S provided with a plurality of channels CH for transmitting the control data D1 to D4 of the lighting load 31 is received. In the obtaining step S3, the control data D1 and D4 are respectively obtained from a plurality of sets of consecutive channels CH from which the control data D1 and D4 are obtained in the DMX signal S received in the receiving step S1. In the transition control step S9, the lighting state of the lighting load 31 is transitioned between states respectively corresponding to the control data D1 and D4 of each set of continuous channels CH acquired in the acquisition step S3. This transition is performed during an abnormal reception period during which the DMX signal S cannot be received normally in the reception step S1.

In the invention according to the first to third aspects, when the abnormal reception period in which the DMX signal S cannot be received normally occurs, the illumination is switched between the states corresponding to the respective control data D1 and D4 obtained by the obtaining unit 34 from the DMX signal S. The lighting state of the load 31 is changed. Therefore, even if the receiver 32 cannot intermittently and repeatedly receive the DMX signal S in which the content of the control data D1 changes, transition control can be performed by the transitions between the states corresponding to the control data D1 and D4. The unit 34 can dynamically change the lighting state of the lighting load 31 . Therefore, even during the abnormal reception period of the DMX signal S, the lighting state of the lighting load 31 can be dynamically changed by the transition control section 34 as during the normal reception period.

Moreover, the transition control unit 34 dynamically changes the lighting state of the lighting load 31 not only when the receiving unit 32 cannot receive the DMX signal S normally, but also after disconnection of the controller 2 from each lighting fixture L. can be changed to Therefore, it is possible to realize a system in which the lighting state of the lighting load 31 dynamically changes without laying wires to transmit the DMX signal S.

In addition, in the lighting fixture L of the invention according to the first aspect, each set of consecutive channels CH may be set in the address setting unit 35 by a set of a leading address and an address length. Here, the leading address can be an address indicating the leading channel CH, for example. Also, the address length can be, for example, the number of consecutive channels from the leading channel CH.

Further, in the lighting control method of the invention according to the second aspect, in the acquisition step S3, each set of continuous channels CH for which the control data D1 and D4 are respectively obtained is defined by a set of a top address and an address length. good too. Here, the head address can be, for example, a head address indicating the head channel CH. Also, the address length can be, for example, the number of consecutive channels from the leading channel CH. The same applies to the lighting control program of the invention according to the third aspect.

If the amount of control data D1 and D4 is large and a large number of channels CH are required to transmit the control data D1 and D4, the setting information can It is possible to suppress an increase in the data amount of the setting information.

Furthermore, in the inventive luminaire L according to the first aspect, the DMX signal S has a timing channel CH for time data D5 indicating the required time t spent transitioning between states corresponding to the control data D1 and D4 respectively. You may have For example, the time setting channel CH may be arranged in a channel CH outside the selection range of the channel CH set in the address setting section 35 as a continuous channel CH. If the DMX signal S has a time setting channel CH for the time data D5, the obtaining unit 34 may further obtain the time data D5 from the time setting channel CH of the DMX signal S received by the receiving unit 32. Further, the transition control unit 34 may transition the lighting state of the lighting load 31 between the states corresponding to the control data D1 and D4 by spending the required time t indicated by the time data D5 acquired by the acquisition unit 34. good.

Also, in the lighting control method of the invention according to the second aspect, the DMX signal S has a time setting channel CH for the time data D5 indicating the required time t for the transition between the states corresponding to the control data D1 and D4. You may have The timed channels CH may, for example, be located in channels CH outside the selection range of each set of consecutive channels CH.

If the DMX signal S has a time setting channel CH for the time data D5, the obtaining step S3 may further obtain the time data D5 from the time setting channel CH of the DMX signal S received in the receiving step S1. Further, in the transition control step S9, the lighting state of the lighting load 31 may be transitioned between the states corresponding to the control data D1 and D4 by spending the required time t indicated by the time data D5 acquired in the acquisition step S3. good. The same applies to the lighting control program of the invention according to the third aspect.

In the invention according to the first to third aspects, when the time data D5 is further acquired from the time setting channel CH of the DMX signal S, the required time t required to transition the lighting state of the lighting load 31 during the abnormal reception period is It can be set by data D5. For this reason, it is possible to increase the variation of dynamic changes in the lighting state during the abnormal reception period by providing a degree of freedom for setting the time t required for the transition of the lighting state.

Furthermore, in the lighting fixture L of the invention according to the first aspect, the DMX signal S may have a pattern setting channel CH for pattern data D6 indicating transition patterns between states respectively corresponding to the control data D1 and D4. good. For example, the pattern setting channel CH may be arranged in a channel CH outside the selection range of the channel CH set in the address setting section 35 as a continuous channel CH.

If the DMX signal S has a time setting channel CH for the pattern data D6, the obtaining unit 34 may further obtain the pattern data D6 from the time setting channel CH of the DMX signal S received by the receiving unit 32. Further, the transition control unit 34 may transition the lighting state of the lighting load 31 between the states corresponding to the control data D1 and D4 according to the transition pattern indicated by the pattern data D6.

Further, in the lighting control method of the invention according to the second aspect, the DMX signal S has a pattern setting channel CH for transmitting pattern data D6 indicating transition patterns between states respectively corresponding to the control data D1 and D4. good too. The timed channels CH may, for example, be located in channels CH outside the selection range of each set of consecutive channels CH.

If the DMX signal S has a time setting channel CH for the pattern data D6, the obtaining step S3 may further obtain the pattern data D6 from the pattern setting channel CH of the DMX signal S received in the receiving step S1. Further, in the transition control step S9, the lighting state of the lighting load 31 may be transitioned between the states corresponding to the control data D1 and D4 according to the transition pattern indicated by the pattern data D6 acquired in the acquisition step S3. The same applies to the lighting control program of the invention according to the third aspect.

In the invention according to the first to third aspects, when the pattern data D6 is further acquired from the pattern setting channel CH of the DMX signal S, the pattern for transitioning the lighting state of the lighting load 31 during the abnormal reception period is set in the pattern data D6. It can be a transition pattern. For this reason, it is possible to increase the variation of dynamic changes in the lighting state during the abnormal reception period by providing a degree of freedom for setting the transition pattern of the lighting state.

Furthermore, the lighting fixture L of the invention according to the first aspect may be configured to further include the storage unit 35 and the normal control unit 34 . The storage unit 35 can store the data D1 to D6 acquired by the acquisition unit 34 . In addition, the normal control unit 34 may control the illumination state of the lighting load 31 while the receiving unit 32 intermittently and repeatedly receives the DMX signal S during the normal reception period other than the abnormal reception period. can.

Here, the normal control unit 34 uses the control data D1 of a specific single set of consecutive channels CH among the sets set in the address setting unit 35 in the latest DMX signal S received by the receiving unit 32. , the lighting state of the lighting load 31 may be controlled. Further, each time the receiving unit 32 receives the DMX signal S, the storage unit 35 updates the stored data D1 to D6 to the data D1 to D6 in the latest DMX signal S received by the receiving unit 32. may

Moreover, the lighting control method of the invention according to the second aspect may further include a storage step S5 and a normal control step S7. Here, in the storing step S5, for example, each data D1 to D6 acquired in the acquiring step S3 can be stored in the storage unit . Further, the normal control step S7 controls the illumination state of the lighting load 31 while the DMX signal S is intermittently and repeatedly received in the receiving step S1 during the normal reception period other than the abnormal reception period. can do.

At this time, the lighting condition of the lighting load 31 is, for example, the control data D1 of a specific single set of consecutive channels CH among the sets of consecutive channels CH in the latest DMX signal S received in the receiving step S1. can be controlled by Each time the DMX signal S is received in the receiving step S1, the data D1 to D6 stored in the storage unit 35 in the storing step S5 are updated to the data D1 to D6 obtained from the latest received DMX signal S. may

In the invention according to the first to third aspects, when the control data D1 used for lighting control of the lighting fixture L during the normal reception period is stored in the storage unit 35, the lighting state of the lighting fixture L is changed during the abnormal reception period. can be used as one of the two control data D1 and D4 required to control the Therefore, the control data D1 used to dynamically change the lighting state of the lighting fixture L during the normal reception period is effectively used to dynamically change the lighting state of the lighting fixture L during the abnormal reception period. can do.

Reference Signs List 1 lighting control system 2 controller 21 signal output unit 22 timer unit 23 storage unit 24 control unit 25 display unit 26 touch panel unit 27 display driver unit 31 lighting load 32 signal reception unit (reception unit)
33 lighting circuit unit 34 control unit (acquisition unit, transition control unit, normal control unit)
35 storage unit (address setting unit)
B break period CH channel (time setting channel, pattern setting channel)
D1~D4 Control data D5 Time data D6 Pattern data F Frame L, L11~L1n, L21~L2n, L31~L3n Lighting equipment S DMX signal t Required time

Claims (15)

a receiver for receiving a DMX signal provided with a plurality of channels for transmitting control data of the lighting load;
an address setting unit in which a plurality of sets of consecutive channels from which the control data is acquired in the DMX signal are set;
an acquisition unit configured to acquire the control data from each set of consecutive channels set in the address setting unit of the DMX signal received by the reception unit;
During a reception abnormal period in which the receiving unit cannot normally receive the DMX signal, the lighting state of the lighting load is transitioned between states corresponding to the control data of the respective sets of consecutive channels acquired by the acquiring unit. a transition control unit that causes
A lighting fixture with 2. The address setting unit according to claim 1, wherein each set of consecutive channels is set by a set of a head address indicating the head channel and an address length indicating the number of consecutive channels from the head channel. Luminaire as described. The DMX signal has a time setting channel for time data indicating the time required for transition between the states outside the selection range of channels set in the address setting unit as the continuous channel, The acquisition unit further acquires the time data from the time setting channel of the DMX signal received by the reception unit, and the transition control unit determines the lighting state of the lighting load from the time data acquired by the acquisition unit. 3. The lighting fixture according to claim 1 or 2, wherein the required time indicated by is spent to transition between the states. The DMX signal has a pattern setting channel for pattern data indicating a transition pattern between the states outside the selection range of channels set in the address setting unit as the continuous channels, and the obtaining unit , further acquiring the pattern data from the pattern setting channel of the DMX signal received by the receiving unit; 4. The lighting fixture according to any one of claims 1 to 3, wherein transition patterns are used to transition between the states. a storage unit for storing each data acquired by the acquisition unit; a normal control unit for controlling the lighting state of the lighting load by the control data of the continuous channels of a specific single set out of the sets set in the address setting unit in the latest DMX signal received from the wherein the storage unit updates each of the stored data to the data in the latest DMX signal received by the receiving unit each time the receiving unit receives the DMX signal. 5. The luminaire according to any one of 1 to 4. a receiving step of receiving a DMX signal having a plurality of channels for transmitting control data of the lighting load;
an acquiring step of respectively acquiring the control data from a plurality of sets of continuous channels targeted for acquisition of the control data in the DMX signal received in the receiving step;
During a reception abnormal period in which the DMX signal cannot be normally received in the receiving step, the lighting states of the lighting load are determined between the states respectively corresponding to the control data of the sets of consecutive channels obtained in the obtaining step. a transition control step for transitioning;
lighting control method including; In the obtaining step, the control data is obtained from each set of consecutive channels defined by a set of a head address indicating the head channel and an address length indicating the number of consecutive channels from the head channel. 7. A lighting control method according to claim 6, wherein The DMX signal has, outside the selected range of each set of consecutive channels, a timed channel carrying time data indicative of the amount of time spent transitioning between the states, and in the acquiring step, the receiving The time data is further acquired from the time setting channel of the DMX signal received in the step, and the lighting state of the lighting load is determined in the transition control step for the required time indicated by the time data acquired in the acquisition step. 8 . The DMX signal has a pattern setting channel transmitting pattern data indicating a transition pattern between the states outside the selection range of each set of consecutive channels, and is received in the receiving step in the obtaining step. The pattern data is further acquired from the pattern setting channel of the DMX signal acquired in the acquisition step, and in the transition control step, the illumination state of the lighting load is determined by the transition pattern indicated by the pattern data acquired in the acquisition step. The lighting control method according to any one of claims 6 to 8, wherein transition is made between. a storing step of storing each data acquired in the acquiring step in a storage unit; a normal control step of controlling the lighting state of the lighting load according to the control data of a specific single set of the consecutive channels among the sets of consecutive channels in the latest DMX signal; Each time the DMX signal is received in the receiving step, in the storing step, the data to be stored in the storage unit is changed from the latest DMX signal received in the receiving step to the data obtained in the obtaining step. The lighting control method according to any one of claims 6 to 9, wherein the lighting control method is updated to . to the computer,
a receiving step of receiving a DMX signal having a plurality of channels for transmitting control data of the lighting load;
an acquiring step of respectively acquiring the control data from a plurality of sets of continuous channels targeted for acquisition of the control data in the DMX signal received in the receiving step;
During a reception abnormal period in which the DMX signal cannot be normally received in the receiving step, the lighting states of the lighting load are determined between the states respectively corresponding to the control data of the sets of consecutive channels obtained in the obtaining step. a transition control step for transitioning;
A lighting control program that runs In the acquisition step, a computer is provided with a set of consecutive channels each defined by a set of a head address indicating the head channel and an address length indicating the number of consecutive channels from the head channel, and the control 12. The lighting control program according to claim 11, which acquires data respectively. said DMX signal has a timed channel carrying time data indicative of the time taken to transition between said states outside the selected range of each said set of contiguous channels; and further obtaining the time data from the time setting channel of the DMX signal received in the receiving step, and, in the transition control step, determining the lighting state of the lighting load from the time data obtained in the obtaining step. 13. The lighting control program according to claim 11 or 12, wherein transition is made between the states by spending the required time indicated by . The DMX signal has a pattern-setting channel carrying pattern data indicative of a transition pattern between the states outside the selected range of each set of contiguous channels, and a computer, in the acquiring step, comprising the receiving further acquiring the pattern data from the pattern setting channel of the DMX signal received in step; 14. The lighting control program according to any one of claims 11 to 13, wherein transitions are made between the states according to a transition pattern. a storing step of causing a computer to store each data acquired in the acquiring step in a storage unit; and a normal control step of controlling the lighting state of the lighting load according to the control data of the continuous channel of a specific single set out of the respective sets of continuous channels in the most recently received DMX signal. Further executed, and each time the DMX signal is received in the receiving step, in the storing step, each of the data to be stored in the storage unit is obtained from the latest DMX signal received in the receiving step. 15. The lighting control program according to any one of claims 11 to 14, wherein each data obtained in the above is updated.

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