JPH05258868A - Lighting system for plant control room - Google Patents

Abstract

PURPOSE:To prevent the occurrence of erroneous j judgment and erroneous operation by controlling the luminescence color temperature from a luminaire made of a light source capable of changing the color temperature based on the state of a plant. CONSTITUTION:A luminaire 2 is installed as the illumination of a control room where operators of a plant reside, and a control device 4 is installed in the control room. When the plant is normal, electric power is fed to a fluorescent lamp 7 which is a light source of the daylight color by a dimming device 10 in the control device 4. The illumination in the control room is illuminated by the daylight color type having a high color temperature suitable for the normal service. When the plant becomes an abnormal state, an abnormality signal is generated and inputted to the control device 4, a resistance changing mechanism 11 is operated, and values of variable resistors in phase controllers 8, 9 are changed. The power fed to the fluorescent lamp 7 which is the light source of the daylight color having a high color temperature is reduced, and the power fed to an incandescent lamp 6 which is a light source of the daylight color having a low color temperature is increased. The strain of the operators is mitigated, and the occurrence of the erroneous judgment and erroneous operation can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to lighting in a control room or the like of a plant in which an operator is stationed, and relates to a lighting device in a plant control room for changing a color temperature according to an operating state of the plant or the like.

[0002]

2. Description of the Related Art A conventional lighting device in a control room of a plant or the like has a specification of the lighting device in which the illuminance is uniquely followed by the color rendering property, and first, the appropriate brightness is kept in mind. In general, daylight type fluorescent lamps are often used as illuminators. Further, even when a lighting control device is provided, it is a mechanism that simply controls the brightness.

[0003]

When an abnormality occurs during operation of a plant or the like, the plant operator is suddenly placed in a state that he does not experience during normal times, and immediately
Since the operation work must be performed to cope with this abnormal condition, the person is rapidly in a tense state. Usually, there is not enough time for the operation to be performed at this time, especially when an urgent operation is required, the tension increases further, and it is psychologically upset, which is different from normal operation. Judgment and erroneous operations tend to occur.

A control room is one of the environments in which operators of plants under such a situation work permanently. However, the lighting in the control room and the like has not heretofore been considered according to the operating conditions of the plant. In particular, in the case of daylight type lighting with a high color temperature, which uses a fluorescent lamp as the illuminator, it tends to increase tension by stimulating the autonomic nervous system of the driver. Although the lighting is appropriate in terms of maintenance, there is a problem that in an emergency, an effect opposite to that of suppressing psychological agitation occurs.

The object of the present invention is to focus on the fact that the psychological state and the degree of tension of the operator influence the color temperature of the environmental lighting, and to appropriately adjust the color temperature of the lighting according to the operating conditions of the plant or the like. An object of the present invention is to provide a lighting device for a plant control room, which is changed to provide appropriate tension in normal times and to relieve operator's tension in an emergency when an abnormal state occurs to prevent misjudgment and erroneous operation.

[0006]

In a lighting device of a control room in which an operator is stationed and equipped with a function of detecting an abnormal state of a plant, an illuminator including a light source whose color temperature can be changed, and the illuminator It is characterized by comprising a control device for controlling the emission color temperature of the above according to the state of the plant.

[0007]

In the normal operation, the control room is illuminated by increasing the color temperature of the light source in the illuminator to give appropriate tension to the operator. When an abnormality occurs in the plant, this abnormality signal is input to the control device to change the color temperature of the light source to a relatively low color temperature. This softens the operator's unnecessary tension and prevents erroneous determination and erroneous operation during emergency work.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration diagram of a lighting device. The lighting device 1 is a control for controlling a color temperature of the lighting device 2 by inputting a lighting device 2 including a light source having a variable color temperature and a plant abnormality signal 3. The control device 4 is supplied with a power source 5.

The illuminator 2 has the function of changing the color temperature, and an example of the illuminator that realizes this function is shown in the perspective view of FIG. The illuminator 2 comprises a plurality of incandescent lamps 6 having a relatively low color temperature as a light source and a plurality of straight tube type daylight color type fluorescent lamps 7 having a high color temperature, and is composed of a plurality of light sources having different color temperatures. Has been done.

By controlling these light sources having different color temperatures,
The control device 4 for changing the color temperature as the illuminator 2 is shown in the block diagram of FIG. This control device 4 uses the illuminator 2
Incandescent lamp 6 and fluorescent lamp 7 which are two types of light sources equipped in
Corresponding to the above, the phase control is performed by a dimming device 10 including two phase controllers 8 and 9 for controlling the electric power supplied to each of them to dimming the respective light sources, and an abnormal signal 3 of the plant. The resistors 8 and 9 are composed of a resistance variable mechanism 11 that changes the resistance value of the variable resistors.

Next, the operation of the above configuration will be described. The illuminator 2 is provided as lighting for a control room in which a plant operator is resident, and the control device 4 is installed in the control room. When the plant is in a normal state, the dimming device 10 in the control device 4 supplies power to the fluorescent lamp 7, which is a daylight color light source. Therefore, the lighting in the control room is illuminated with a daylight color type with a high color temperature, which appropriately stimulates the autonomic nervous system of the operator to increase tension,
Proper lighting is provided during normal work.

An abnormal signal 3 is generated when the plant is in an abnormal state. The control device 4 inputs the abnormal signal 3 and the resistance variable mechanism 11 operates to change the variable resistance value in the phase controllers 8 and 9, and the fluorescent lamp 7 serving as a daylight color light source having a high color temperature. Reduce the power that was being supplied to. Then, conversely, the power supplied to the incandescent light bulb 6, which is an incandescent light source having a low color temperature, is increased.

Thus, the light emitted from the illuminator 2 is changed from a pale daylight color having a high color temperature to a reddish incandescent light bulb color having a low color temperature, and is used for lighting when the plant is in a normal state. By gradually switching the conventional light source having a high color temperature to the light source having a low color temperature, the illumination of the control room can be continuously changed to the low color temperature.

As a result, the operator in the control room shifts to lighting with a low color temperature without making the light source of the lighting and the change in color temperature uncomfortable, and creates an environment in which the independent nervous system is relaxed, and the plant It is possible to relieve the operator's tension without being conscious of the abnormal situation, and to prevent erroneous determination and operation of the plant operation due to unnecessary tension in an emergency.

The perspective view of FIG. 4 shows another embodiment of the illuminator according to the present invention. The illuminator 12 is a light bulb color type fluorescent lamp 13 instead of the incandescent bulb 6 as a light source having a low color temperature.
It is configured using. Also by this, the same operation and effect as in the above-described one embodiment can be obtained. Further, a light source having a low color temperature can be obtained by covering a daylight type fluorescent lamp 7 having a high color temperature with a filter having a low color temperature, for example, a red color filter.

Further, the present invention is not limited to the above-mentioned one embodiment and other embodiments, and the color temperature and the changing process of the illuminator 2 are appropriately set according to the working situation of the operator in the control room. Selecting the color temperature and the changing speed by considering the configurations and functions of the illuminator 2 and the control device 4,
And one or more light sources,
Further, in order to obtain a predetermined color temperature, a single light source may be used, or a plurality of light sources may be used, and the proportion distribution of each light source may be appropriately selected and implemented.

[0017]

As described above, according to the present invention, the lighting of the control room of the plant is equipped with the lighting that changes according to the operating condition of the plant, and the tension of the operator who is working at normal time is increased. Is properly maintained, and in particular, in an emergency of the plant, it is effective in improving the safety of the plant operation as an environment in which it is possible to soften without being aware of the uplifting tenderness and to perform sound operation.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a lighting device showing an embodiment of the present invention.

FIG. 2 is a perspective view of an illuminator according to an embodiment of the present invention.

FIG. 3 is a block configuration diagram of a control device according to an embodiment of the present invention.

FIG. 4 is a perspective view of an illuminator showing another embodiment of the present invention.

[Explanation of symbols]

1 ... Lighting device, 2, 12 ... Illuminator, 3 ... Abnormal signal, 4 ... Control device, 5 ... Power supply, 6 ... Incandescent light bulb, 7 ... Daylight color type fluorescent lamp, 8, 9 ... Phase controller, 10 ... Adjustment Optical device, 11 ... Variable resistance mechanism, 13 ... Light bulb color type fluorescent lamp.

Claims (1)

[Claims] 1. An illuminator of a control room in which an operator is stationed and equipped with a function of detecting an abnormal state of a plant, and an illuminator including a light source whose color temperature can be changed, and a color temperature emitted from the illuminator. An illumination device for a plant control room, which comprises a control device for controlling the above according to the state of the plant.