JPH05270314A - Interior lighting system for bus - Google Patents

Abstract

PURPOSE:To provide a bus interior lighting system which executes an illumination having cool feeling when outside temperature is high and that having warm feeling when it is low by providing a daytime lighting control circuit to changingly control a changeover circuit to a set-up color according to the detected temperature of a temperature sensor when the output of an illuminance sensor is above fixed value. CONSTITUTION:A daytime lighting control circuit 6 takes in brightness outside a car detected by an illuminance sensor 4, and a lighting switch 2 is then operated to light a standard color illuminating lamp 15. When the daytime lighting control circuit 6 is above 2 fixed value, the detected output of a temperature sensor 5 is taken in from the value of the illuminance sensor 4, and a change- over circuit 3 is controlled according to the above detected output. The color sending unit 3b of the change-over circuit 3 inputs one of the illuminating lamps having each previously set up color into a lighting unit 8. Namely, the illuminating lamp pertinent to the above matter among an orange colored illuminating lamp 1a, a white colored one 1b and a blue colored one 1c is lighted. In this case, a color selecting switch 3a automatically selects the pertinent color according to temperature outside a car.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for controlling indoor lighting of a bus. INDUSTRIAL APPLICABILITY The present invention is suitable for use in a bus in which dimming glass is used for window glass. The present invention relates to a device that lights an interior light in the daytime and automatically controls switching of its color.

[0002]

2. Description of the Related Art In large buses used for sightseeing buses and long-distance buses, it is popular to use a dimming glass as a window glass to darken the room and turn on an indoor light during the day.
In such a bus, it is considered that an interior light is provided with a plurality of types of illumination lights having different colors and the color is selected according to preference. This is a device for making the inside of the bus comfortable.

On the other hand, a control circuit provided with an illuminance sensor for detecting the brightness outside the vehicle and controlling the illumination lamp to automatically turn on at night is widely used as a lighting circuit for automobiles. Is a circuit for lighting and controlling the illumination lamp at night, which is different from the circuit for lighting and controlling the indoor lamp during the daytime according to the present invention.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to automatically control indoor lighting in the daytime. When the outside temperature is high, a cool feeling lighting is turned on, and when the outside temperature is low, a warm feeling lighting is provided. It is an object of the present invention to provide a device that automatically switches a lighting so that the lighting is turned on.

[0005]

SUMMARY OF THE INVENTION The present invention is an apparatus provided with a plurality of types of indoor illumination lamps of different colors, a lighting switch of the indoor illumination lamp, and a switching circuit for selecting the color of the indoor illumination lamp. It is provided with an illuminance sensor that detects the brightness outside the vehicle and a temperature sensor that detects the temperature outside the vehicle, and in a state where the lighting switch is turned on, the output of the illuminance sensor is equal to or more than a predetermined value. At some point, during the day,
And a daytime lighting control circuit for fetching the temperature detected by the temperature sensor and controlling the switching circuit to switch to a pre-programmed color.

The selection of colors may be performed by switching all of the illumination lamps. However, as a practical method, a basic illumination lamp is continuously lit and a color lamp to which color is added is switched and lit. Good.

[0007]

This device is a lighting circuit for an indoor illumination lamp,
Lighting at night is basically done manually or by another night circuit. When it comes to turning on the interior light in the daytime,
It was devised to automatically select that color.

When the output of the illuminance sensor for detecting the brightness outside the vehicle is equal to or higher than a predetermined value, that is, during the daytime, a plurality of types of indoor illumination lights having different colors are automatically selected. In this case,
The temperature outside the vehicle is detected by a temperature sensor, and the switching circuit is controlled to switch to a preset color according to the detected temperature. That is, when the temperature outside the vehicle is high, the lighting is switched to a cool feeling, and when the temperature outside the vehicle is low, the lighting is switched to a warm feeling to give passengers a comfortable feeling.

One practical method is to continuously turn on an illumination lamp of a basic standard color as a color selection, and use a color sensor for adding a special color to the standard color as a temperature sensor. A method of switching according to the detected temperature is preferable. In such a system, a constant illuminance is maintained even when a color is not selected, and when the color is switched, a change in the illumination environment does not become extreme, so that there is a sense of stability.

This device is an automatic device, and when an automatic state is to be canceled and a manual operation is to be performed, the automatic device can be disabled by the operation and the desired illumination lamp can be freely turned on by the operation switch. ..

[0011]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG.
FIG. 3 is an external view of a bus showing a mounting state of an illuminance sensor and a temperature sensor in the embodiment of the present invention.

In the embodiment of the present invention, a plurality of types of illuminating lamps 1 and standard color illuminating lamps 1 having different colors, lighting switches 2 of the illuminating lamps 1 and 15 and a color of the illuminating lamp 1 are selected. A switching circuit 3, an illuminance sensor 4 that detects the brightness outside the vehicle, a temperature sensor 5 that detects the temperature outside the vehicle,
When the output of the illuminance sensor 4 is equal to or higher than a predetermined value, the lighting switch 2 is turned on, and the daytime lighting control circuit 6 that controls switching of the switching circuit 3 to a preset color according to the temperature detected by the temperature sensor 5 is provided. Prepare

The switching circuit 3 includes a color selection switch 3 for operation.
a and a color selection unit 3b for selecting a color are included, and the color selection unit 3b is controlled by the illuminance control circuit 7,
It is connected to a lighting unit 8 which lights the illumination lamp 1. The operation color selection switch 3a is arranged on the dashboard of the driver's seat. In addition, in this embodiment, the illumination lamp 1 includes an orange illumination lamp 1a, a white illumination lamp 1b, and a blue illumination lamp 1c.

Next, the operation of the embodiment of the present invention thus constructed will be described. The apparatus of this embodiment has a configuration in which the daytime is automatic, the nighttime is manual, and the dusk is in a lighting state immediately before that. FIG. 3 is a flow chart showing the flow of control operation of the daytime lighting control circuit in the embodiment of the present invention.

The daytime lighting control circuit 6 includes a power switch 11
When is turned on, the brightness outside the vehicle detected by the illuminance sensor 4 is taken in and it is determined whether or not the output is equal to or higher than a predetermined value. When the lighting switch 2 is turned on in this state, the daytime lighting control circuit 6 operates. When the lighting switch 2 is turned on by operation, the standard color illumination lamp 15 is turned on. When it is determined from the value of the illuminance sensor 4 that the daytime lighting circuit 6 is equal to or higher than a predetermined value (daytime), the detection output of the temperature sensor 5, that is, the temperature outside the vehicle is taken in, and the switching circuit 3 is controlled according to the detection output. To do.

The color selection unit 3b of the switching circuit 3 selects one system of the illumination lamp 1 of a preset color according to the instruction of the daytime lighting control circuit 6 and inputs the output to the lighting unit 8. That is, the corresponding illumination light of the orange illumination light 1a, the white illumination light 1b, and the blue illumination light 1c is turned on. In this case, it is not necessary to operate the operation color selection switch 3a, and the color is automatically selected according to the temperature outside the vehicle.

When the lighting switch 2 is turned on and the daytime lighting control circuit 6 determines that the brightness outside the vehicle taken in from the illuminance sensor 4 is below a predetermined value, that is, twilight or night, the lighting switch 14 is turned on. It is detected whether or not the headlight 13 of the vehicle is turned on by operation at that time. here,
If the headlight 13 is not lit, it is determined that it is dusk. In the twilight state, the new control is stopped and the lighting of the color that has been lit up to that point is continued. When the headlight 13 is on, it is determined that it is night.
In the case of night, the illumination light of the color (one of orange (A), white (B), and blue (C) in this embodiment) selected by the operation color selection switch 3a is turned on. At this time, if none of the operation color selection switches 3a is in the conductive state,
The standard color illumination lamp 15 is simply turned on continuously.

Although the color selection unit 3b is effectively operating in the daytime automatic control state described above, in the case where the automatically controlled color does not suit the taste, the operation color selection switch 3a is operated. The automatic control state can be forcibly stopped by setting one of them in the conductive state. The operation of the operation color selection switch 3a is set so as to have priority over the control of the color selection depth 3b. Color selection switch 3 for this operation
It is possible to turn on the illumination of the desired color by operating a.

[0019]

As described above, according to the present invention, in a vehicle such as a bus which is driven by turning on an interior light in the daytime, it is possible to automatically switch the lighting to a color according to the brightness outside the vehicle and the temperature. It is possible to provide passengers with a comfortable feeling.

[Brief description of drawings]

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

FIG. 2 is an external view of a bus showing states of an illuminance sensor and a temperature sensor according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a flow of control operation of a daytime lighting control circuit in the embodiment of the present invention.

[Explanation of symbols]

 1 Lighting lamp 1a Orange lighting lamp 1b White lighting lamp 1c Blue lighting lamp 2 Lighting switch 3 Switching circuit 3a Color selection switch for operation 3b Color selection unit 4 Illuminance sensor 5 Temperature sensor 6 Daytime lighting control circuit 7 Illuminance control circuit 8 Lighting unit 11 Power switch 12 Power supply 13 Headlight 14 Lighting switch 15 Standard color lighting

Claims (1)

[Claims] 1. An interior lighting device for a bus, comprising a plurality of types of interior illumination lights of different colors, a lighting switch for the interior illumination light, and a switching circuit for selecting the color of the interior illumination light. An illuminance sensor that detects the temperature, a temperature sensor that detects the temperature outside the vehicle, and an output of the illuminance sensor that is greater than or equal to a predetermined value with the lighting switch being turned on, depending on the temperature detected by the temperature sensor. An interior lighting device for a bus, comprising: a daytime lighting control circuit that controls switching of a switching circuit to a preset color.