JPH0594703A - Illumination system - Google Patents

Abstract

PURPOSE:To simplify a transmission circuit between a transmission means and multiple terminals by providing a signal detection section detecting the presence of the action signal output from other terminals and controllers outputting the self action signals when no output is detected. CONSTITUTION:When the shift of an illumination apparatus optical system is completed based on the control signal at a terminal 5 having a controller 11 (CPU 1), a signal detection section 12 detects whether the reply presence signal is outputted to a transmission means 4 from the controller 11 (CPU 2) of another terminal 5 or not, and it waits for a preset period if the signal is outputted. If no signal is outputted, it performs the same detection on the next terminal 5. If no signal is outputted on the controller 11 (CPUn), it outputs the action signal of the action data to the transmission means 4 together with the self reply presence signal. The collision of the action signals from the terminals 5 is prevented, and the transmission circuit to the transmission means 4 can be made one channel and simplified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting system for a stage of a television studio or a theater, for example.

[0002]

2. Description of the Related Art In this type of lighting system, a lighting apparatus having a plurality of terminals such as a terminal having a pan motor for automatically controlling the irradiation direction of light and a terminal having a tilt motor is installed on a ceiling or the like. .. The luminaire having the plurality of terminals is used as a slave unit, and the plurality of slave units are connected via a transmission line to a master unit that centrally controls the illumination state.

Then, when a command is output from the master unit to each slave unit and each slave unit receives a corresponding command, each terminal in the slave unit operates the lighting fixture to automatically control the light irradiation direction. It

Further, after the operation of each terminal of the slave unit, the operating state of the luminaire by each terminal is detected, and the operation signal is transmitted to the master unit through the transmitting means, and the master unit operates the operating state of each slave unit, that is, lighting. The condition is monitored.

[0005]

By the way, in the slave unit, when the operation signal is output from the plurality of terminals to the transmission means,
If the transmission circuit between the transmission means and the plurality of terminals has one channel, the operation signals from the respective terminals may collide.

Therefore, in the conventional lighting system, a transmission circuit of a plurality of channels corresponding to the number of terminals is provided between the transmission means and the plurality of terminals, and the transmission circuit is complicated and the transmission circuit is complicated. There is also a need for control means for controlling the.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an illumination system capable of simplifying a transmission circuit between a transmission means and a plurality of terminals.

[0008]

The invention according to claim 1 has a plurality of terminals for operating the luminaire, and a transmission means for transmitting an operation signal output from the terminals. In the monitoring illumination system, each of the terminals detects a presence or absence of an output of an operation signal from another terminal, and a signal detection section detects that the other terminal does not output an operation signal. And a control unit for outputting its own operation signal.

According to a second aspect of the present invention, in the first aspect of the present invention, the main unit, a plurality of terminals, and a transmission unit are provided, and a plurality of slave units that transmit operation signals from each terminal to the main unit through the transmission unit. It is equipped with and.

[0010]

According to the first aspect of the invention, when each terminal outputs its own operation signal to the transmission means, it detects whether the other terminal outputs the operation signal, and only when it does not output the own operation signal. Therefore, even if the transmission circuit between the plurality of terminals and the transmission means has one channel, the operation signals can be transmitted without collision.

According to a second aspect of the present invention, in the first aspect of the present invention, the operation signal output from the terminal of each slave unit is transmitted to the master unit through the transmission means, and the master unit indicates the operating state of each slave unit terminal. Monitor.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows the entire lighting system, and 1 is a master unit comprising a microcomputer or the like for controlling the entire system, and a plurality of slave units 3 each having its own address via the transmission line 2 to this master unit 1. Are connected.

In the master unit 1, data such as the irradiation direction and the light distribution pattern stored in the database are input online, by a floppy disk or the like, or individual data are input by a keyboard or the like. Control data for controlling each slave unit 3 is calculated based on the input data, and an address and a control signal are transmitted to each slave unit 3. Also, each child device 3
It has a function of inputting the operation signal returned from, and monitoring the current lighting condition.

Each slave unit 3 is an illuminator having an optical system including at least a lamp and a reflector, and is capable of automatically controlling the irradiation direction of the light and the position of the fixture, and is connected to the transmission line 2 for signal transmission. And a plurality of terminals 5 for operating the optical system.

Each terminal 5 has a pan motor for rotating the optical system about an axis in the vertical direction to change the irradiation direction in the pan direction and a pan device having a pan sensor for detecting its operating state, and the optical system for the optical system in the horizontal direction. A tilting device having a tilt motor that rotates about the axis of the axis to change the irradiation direction of the tilt direction and a tilt sensor that detects the operating state of the tilt motor, and moves the optical system position in the X-axis, Y-axis, and Z-axis directions. It is composed of a moving device having a moving motor and a position sensor, a dimmer, and the like.

FIG. 1 shows a control block diagram of one slave unit 3, which comprises a transmission means 4 composed of an LSI and a plurality of control units 11 (CPUs 1, 2, ... N) provided for each terminal 5. Between the transmission means 4 and each control section 11, a pair of transmission lines for transmitting data from the transmission means 4 to each control section 11 and from each control section 11 to the transmission means 4, and from each control section 11. A transmission circuit or the like for transmitting the return-present signal is formed in the means 4.

The control unit 11 of each terminal 5 controls the motor to operate the optical system of the lighting fixture based on the control signal input through the transmission means 4, and the sensor detects the operating state of the optical system. Then, the return enable signal is output to the transmission means 4 and the operation signal of the operation data is output.

The control unit 11 controls the control unit 11 of another terminal 5.
It has a function of a signal detection unit 12 that is connected to the other terminal 5 and detects the presence or absence of a return presence signal from the control unit 11 of another terminal 5, that is, an operation signal. When it is detected that the signal, that is, the operation signal is not output, the self-returned presence signal and the operation signal are output.

Next, the operation of this embodiment will be described.

In the master unit 1, data such as the irradiation direction and the light distribution pattern stored in the database are input online, by a floppy disk or the like, or individual data are input by a keyboard or the like. Control data for controlling each slave unit 3 is calculated based on the input data, and an address and a control signal are transmitted to each slave unit 3.

Then, each child device 3 inputs only the control signal corresponding to its own address through the transmitting means 4 and transmits it to each terminal 5. The control unit 11 of each terminal 5 controls the motor to operate the optical system of the lighting fixture, detects the operating state of the optical system with the sensor, outputs a return enable signal to the transmission unit 4, and outputs the operation data. The operation signal is output and returned to the master device 1 through the transmission means 4.

The master device 1 receives the operation signal returned from each slave device 3 and monitors the current lighting condition.

Next, the control when the operation signal is output from the terminal 5 having the control unit 11 (CPU 1) will be described with reference to the flowchart of FIG.

In the terminal 5 having the control unit 11 (CPU1),
When the movement of the optical system based on the control signal is completed (step 1), the function of the signal detection unit 16 causes the control unit 11 of another terminal 5 to operate.
It is detected whether or not the return presence signal is output from the (CPU 2) to the transmission means 4 (step 2), and if it is output, a predetermined time is waited (step 3).

If the return signal is not output from the control unit 11 (CPU 2), the control unit (CPU of the next other terminal 5)
From 3), it is detected whether or not the return presence signal is output to the transmission means 4 (step 4).

In this way, the control units 11 (CPUn) of all the other terminals 5 are detected and, if necessary, stand by (steps 6 and 7).

Then, if the return enable signal is not output from the control unit 11 (CPUn), its own return enable signal is output to the transmission means 4 and the operation signal of the operation data is output to the transmission means 4 (step 8, 9).

Therefore, each terminal 5 is connected to the transmission means 4.
Since it is possible to prevent the operation signals output from the terminals from colliding with each other, the transmission circuit of the transmission means 4 and the plurality of terminals 5 can be one channel, and the transmission circuit can be simplified.

[0030]

According to the first aspect of the present invention, when each terminal outputs its own operation signal to the transmission means, it is detected whether or not the operation signal is output from another terminal, and only when it is not output. Since it outputs its own operation signal, even if the transmission circuit between the plurality of terminals and the transmission means has only one channel, the operation signal can be transmitted without collision, and the transmission circuit can be simplified.

According to the invention of claim 2, in the invention of claim 1, the operation signal output from the terminal of each child device is transmitted to the parent device through the transmitting means, and the parent device operates the terminal of each child device. The condition can be monitored.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a lighting system of the present invention.

FIG. 2 is a block diagram of the entire illumination system.

FIG. 3 is a flowchart showing a control operation of the terminal.

[Explanation of symbols]

 1 parent device 3 slave device 4 terminal 5 transmission means 11 control unit 12 signal detection unit

Claims (2)

[Claims] 1. A lighting system, comprising: a plurality of terminals for operating a lighting fixture; and a transmission means for transmitting an operation signal output from the terminals, wherein the lighting system monitors an operating state of the lighting fixture. A signal detection unit that detects whether or not an operation signal is output from another terminal, and a control unit that outputs its own operation signal when this signal detection unit detects that there is no operation signal output from another terminal. A lighting system comprising: 2. A master unit, a plurality of terminals having a plurality of terminals and transmission means, and a plurality of slave units for transmitting operation signals from each terminal to the master unit through the transmission means.
Illustrated lighting system.