JPH0676959A - Lighting and air-conditioning integrated system - Google Patents

Abstract

PURPOSE:To realize mutually multipliable comfortableness and an energy saving effect by adopting a color temperature as a common item between visual environment and air environment. CONSTITUTION:When a light source color temperature is raised, bodily sensible brightness of color can be sensed bright, and a bodily sensible temperature can be sensed cool. When the light source color temperature is lowered, the bodily sensible brightness of color can be sensed dark, and the bodily sensible temperature can be sensed warm. In the summertime, the light source color temperature of a lighting load 2 is raised, and the lighting load 2 is controlled in a direction for lowering lighting setting by means of a control part 3. Setting of an air-conditioning temperature of an air-conditioning load 4 is raised. In the wintertime, the light source color temperature is lowered similarly, and the lighting load 2 is controlled in a direction for raising the lighting setting, and the air-conditioning load 4 is also controlled in a direction for lowering the setting of the air-conditioning temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated lighting / air conditioning system that comprehensively considers lighting and air conditioning.

[0002]

2. Description of the Related Art Conventionally, lighting control (light control, color control) and air conditioning control (temperature / humidity) are independent controls in pursuit of their respective comfort and convenience. In this case, comfort from lighting (visual environment) and comfort from air conditioning (air environment) are individually controlled, and mutual causal relationships are not pursued.

Also, in terms of energy saving effect, each effect can be expected, but synergistic effect cannot be expected. It is considered that the color temperature is used as a common item and the ambiguity of the five senses of illuminance and temperature is used to pursue integrated comfort and energy saving effects.

[0004]

The comforts of lighting (visual environment) and air conditioning (air environment) have been researched and developed and put into practical use. However, since there is no common item in the visual environment and the air environment, little comfort has been pursued by integrating the two.

The present invention is provided in view of the above points, and adopts a color temperature as a common item of the visual environment and the air environment, and aims to achieve mutual synergistic comfort and energy saving effect.・ Provides an integrated air conditioning system.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a first control means that is provided with a lighting load and an air conditioning load, and that changes the light source color temperature of the lighting load depending on the season, and when the light source color temperature is raised, Second control means for lowering the illumination setting of the lighting load and raising the air conditioning temperature setting of the air conditioning load, and third control means for raising the illumination setting of the lighting load and lowering the air conditioning temperature setting of the air conditioning load when the light source color temperature is lowered. And a control means.

[0007]

Thus, for example, in summer, by increasing the color temperature of the light source, the sensible temperature feels cool, and the sensation lightness feels bright. It is possible to control to increase the setting, and in winter, by lowering the color temperature of the light source, the sensible temperature feels warmer, and the sensation brightness becomes darker. It becomes possible to control so that the air conditioning temperature setting is lowered. Therefore,
By controlling the illuminance according to the light source color temperature,
It is possible to reduce the power cost of lighting and the power cost of the air conditioning load by controlling the room temperature.
In addition, as a secondary factor, we will reduce the amount of heat generated by lighting in the summer.
Considering the increase in the amount of heat generated by lighting in winter, the air conditioning load can be reduced. As a result, it is possible to directly or indirectly reduce the power consumption when using the equipment.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In a conventional study, a qualitative relationship as shown in FIG. 3 has been reported regarding the body sensation at the color temperature of the light source. That is, if the color temperature of the light source is increased, the sensation lightness feels bright and the sensation temperature feels cool. Further, if the color temperature of the light source is lowered, the sensible brightness feels dark and the sensible temperature feels warm.

By utilizing the ambiguity of lightness and temperature due to human sensation as described above, the color temperature of the lighting is changed depending on the season such as summer and winter, and accordingly, the illumination illuminance and the air-conditioning temperature are made more comfortable than before. In addition, it is to pursue a further energy saving effect. Fig. 4 shows a conceptual diagram of integrated lighting / air conditioning control. By increasing the color temperature of the light source during cooling in the summer, the perceived temperature feels cool and the perceived lightness feels bright. Can be lowered, and the air conditioning temperature setting for the simultaneous air conditioning load can be increased.

Therefore, the illumination load can be reduced by lowering the illuminance setting, and the heat generation amount of the illumination is reduced with the reduction of the illumination load, and at the same time, the air conditioning load can be reduced by increasing the air conditioning temperature setting. Energy saving effect. At the same time, comfort can be pursued. Also, when heating in winter, lowering the color temperature of the light source makes the sensible temperature feel warmer and the sensational brightness becomes darker.Therefore, by increasing the illuminance setting of the lighting load, the heating value of the lighting increases, and By lowering the air conditioning temperature setting, the air conditioning load can be reduced.

It should be noted that an energy saving effect can be achieved in the portion marked with a rice mark in FIG. FIG. 1 shows a block diagram of this integrated lighting / air conditioning system. The lighting load 2 of R, G, B configuration and this lighting load 2 are controlled, that is, the color temperature and illuminance are controlled by an RGB independent inverter ballast. A control unit 3, an air conditioning load 4, a control unit 5 that controls the temperature of the air conditioning load 4 by controlling a three-way valve, a valve, and a compressor, a room temperature sensor 6 that senses the room temperature, and an indoor illuminance. It is composed of an indoor illuminance sensor 7 that senses, and a microcomputer 1 that integrally controls these.

The microcomputer 1, the control unit 3,
5 constitutes the first to third control means. Figure 2
Shows a flow chart of the control system, in which the sensor measures the outdoor temperature and the outdoor illuminance, and performs control as described above in the summer and winter. In the summer, the color temperature is determined in the direction of increasing the light source color temperature, and the illuminance of the lighting load 2 is set by the signal from the indoor illuminance sensor 7. The lighting load 2 is the control unit 3
The color temperature and illuminance are controlled by the RGB independent inverter ballast, and the illuminance setting is lowered.

Further, in response to the signal from the room temperature sensor 6, the control unit 5 controls the valve (VAV) and the three-way valve (3WA).
Y), the compressor (COMP) is controlled, the temperature of the air conditioning load 4 is controlled, and the setting of the air conditioning temperature is increased. In winter, similarly, the color temperature is determined to decrease the light source color temperature, the illuminance setting of the lighting load 2 is increased, and the air conditioning temperature setting of the air conditioning load 4 is decreased.

The above-mentioned color temperature is controlled by RGB (practically, a combination of white color, light bulb color, etc. may be used), and the color adjustment and the light adjustment are performed by an inverter ballast independently installed in RGB. As mentioned above, air-conditioning control also controls the valves, three-way valve, and compressor inverter (in order to improve control accuracy,
PID control is effective. ) And so on.

[0015]

As described above, the present invention is provided with the lighting load and the air-conditioning load, and the first control means for changing the light source color temperature of the lighting load according to the season, and when the light source color temperature is raised, Second control means for lowering the illumination setting of the lighting load and raising the air conditioning temperature setting of the air conditioning load, and third control means for raising the illumination setting of the lighting load and lowering the air conditioning temperature setting of the air conditioning load when the light source color temperature is lowered. Since it has a control means, for example, in summer, by increasing the color temperature of the light source, the sensible temperature feels cool, and the sensation lightness feels bright, so that the illuminance setting of the lighting load is reduced, and at the same time air conditioning is performed. It is possible to control to increase the air conditioning temperature setting of the load, and in winter, by reducing the color temperature of the light source, the sensible temperature feels warm, and the sensation lightness feels dark. simultaneous Control to decrease the air-conditioning temperature setting of the air conditioning load becomes possible. Therefore, by controlling the illuminance by the color temperature of the light source, it is possible to reduce the power cost of the lighting and the power cost of the air conditioning load by controlling the room temperature. Further, as the secondary factors, considering the reduction of the amount of heat generated by illumination in the summer and the increase of the amount of heat generated by illumination in the winter, it is possible to reduce the air conditioning load. As a result, it is possible to directly and indirectly reduce the power consumption when using the equipment.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing a control system of the above.

FIG. 3 is an explanatory diagram of body sensation at the color temperature of the light source of the above.

FIG. 4 is a conceptual diagram of integrated control of lighting and air conditioning of the above.

[Explanation of symbols]

 1 Microcomputer 2 Lighting load 3 Control part 4 Air conditioning load 5 Control part 6 Room temperature sensor 7 Indoor illuminance sensor

Claims (1)

[Claims] 1. A first control means comprising a lighting load and an air conditioning load, which changes the light source color temperature of the lighting load depending on the season; and when the light source color temperature is raised, the illuminance setting of the lighting load is lowered. A second control means for increasing the air conditioning temperature setting of the air conditioning load and a third control means for increasing the illuminance setting of the lighting load and lowering the air conditioning temperature setting of the air conditioning load when the light source color temperature is lowered are provided. Characteristic lighting / air conditioning integrated system.