JPH0549497U - Light / dark warning device for automobiles - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The present invention aims to provide a vehicle with a brightness and darkness that allows a driver of a vehicle to see ahead and a vehicle or pedestrian to see the vehicle. This is a device that determines the conditions and makes the driver hear an appropriate warning sound for turning on and off to improve the mutual safety of cars and cars, cars and pedestrians. [Structure] (b) An optical sensor measures the brightness and darkness that can be seen in front of the driver, and the measured value, the position of the engine key, and the ON / OFF of the light switch. Logically operate to meet the purpose of. (B) Based on the result of the logical operation in (a), a warning sound, which is an electronic sound of lightness and darkness, is generated to warn the turning on and off.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device is fixed near the driver's seat of an automobile, and the condition of the light and dark that a driver can see ahead and the light and dark that a pedestrian can see the car can be determined. It is a device that sounds an appropriate warning light that turns on and off.

[0002]

[Prior Art]

 The technology related to turning on and off the vehicle is equipped with only a warning device that sounds a buzzer when the vehicle is parked and the door is opened without forgetting to turn off the light to prevent battery discharge. However, in the daytime, it is overlooked by checking whether the light switch is turned on and off by checking the switch position or turning on and off the illumination lights of the meters. Also, the timing and place of turning on and off the side lights and headlights differ depending on the driver's sense of eyes and experience. Therefore, a specific problem arises when traveling as follows. In the daytime, in front of the tunnel, check the illuminated sign, turn on the headlight, and if there are multiple signs when exiting the tunnel, be careful of the front confirmation and forget to turn off the light. .. Even in the daytime, it is difficult for pedestrians to see a particularly dark car at an intersection with a pedestrian underpass and a roadway, but the driver passes through the intersection without turning on the side lights. It is difficult for the driver to see the car because the pedestrian may not be able to turn on the side lights until it is dark from the evening and it is difficult for pedestrians to see the surroundings. Even if it becomes bright enough in the morning, a driver running from night to morning may turn off the light and forget. During the daytime, the driver frequently turns the light on and off depending on the brightness and darkness, and forgets whether the light is on or off. Therefore, there may be a psychological resistance to the frequently lit operation. The dimness in dim light is not the dimness measured by an illuminometer, so if the driver's eyes adapt to the dimness, it may not illuminate, but pedestrians who go out of a bright room on a dimly lit road Sometimes it doesn't adapt to the darkness.

[0003]

[Problems to be solved by the device]

 The condition of the brightness when the car is turned on and off depends on the driver's judgment according to the Road Traffic Law. But,

2. Description of the Related Art As described in the concrete problem example of "Prior Art", there are sometimes mistakes in human judgment. Therefore, in this invention, the driver turns on / off the light according to the judgment of the driver, but if the judgment is not appropriate, he / she hears a warning sound and turns on / off the light appropriately.

There is an audible warning sound when there is no light on a dark road and an audible warning sound when it is on a bright road. For example, during the daytime, if there is no light in the tunnel, there is a warning sound that lights up, and if it exits the tunnel and is on, there is a warning sound that lights out.

There is an audible dark warning sound from an optical sensor, whether or not the eye adapts to the dimness during twilight.

There is a warning sound depending on the brightness and darkness, so there is no psychological burden of forgetting to turn on and off. Therefore, during the daytime, even on short dark roads, the lights can be turned on and off appropriately and quickly.

[0007] Additionally, if the light is appropriately turned on and off during traveling, the light is not turned on unnecessarily, so that the service life of the light and the battery is not shortened.

Therefore, the present invention can improve the mutual safety between cars and cars, cars and pedestrians, etc. from a soft aspect.

[0009]

[Means for Solving the Problems]

 This device

[Document name] The operation of each part will be described with reference to the electric circuit diagram. It is assumed that the battery voltage is 12V and the power supply voltage of the device is 12V for convenience of description. (A) When the engine key position is ON, ACC has a voltage of 12V for a car radio, etc., and when that position is OFF, LOCK has a voltage of 0V for the car radio. This voltage is taken from the part of the wiring to which this voltage comes. For convenience of explanation, this is the radio frequency voltage. (B) With only the headlight switch, the side lights can be turned on and off. Take this voltage from the part of the wiring where 12V is turned on when the side lights are turned on and 0V is turned off. For convenience of explanation, this is used as the width lamp voltage.

Brightness / darkness discrimination of an optical sensor. Depending on the type of optical sensor used, the electrical circuit for light / dark discrimination is partly different. Figure 1 When the solar cell is used as an optical sensor (claim a). (B) The optical sensor is a solar cell. (B) Inside the broken line is a low-pass filter that removes noise. (C) The diode inside the broken line is a solar cell that passes the surplus power generated to the positive pole of the battery and charges it. (D) The inverter of I ₁ is the light output of the solar cell. When the light intensity changes from bright to dark, an analog voltage of 0V to 12V is output. (E) S is a Schmitt trigger gate, which converts the analog output of (d) to digital and cuts the fluctuation of the minute light and dark output. The light-dark transition is around 6V, and is adjusted by the variable resistance of I ₁ , and when the brightness is 1 hour before the evening, the light-dark transition is set to output 12V when dark. This output is inverted by the I ₂ inverter to be a brightness output.

FIG. 2 In the case where Cds is used as an optical sensor (claim a). (B) The optical sensor is Cds. (B) Remove noise from the car radio voltage with a low-pass filter within the broken line. (C) The operation principle is the same as (Fig. 1 Niho), only by replacing the solar cell with Cds.

FIG. 3 When the light is bright, it is determined whether the light switch is ON or OFF (Claim B 1). (B) of the side marker lamp voltage 12V and 0V, in FIG. 1 or 2, Ming 12V and 0V, the two voltages as logical product by the AND gates of _{A 1,} to generate an electronic sound 1 in the block. (B) Electronic sound 1 is an electronic sound that warns (Claim B 1), and includes a sound of about 10 Hz, a synthesized sound, and the like (claim C).

[0013]

FIG. 4 is a light switch ON / OFF discrimination when it is dark (Claim B). (B) the vehicle width lamp voltage and a 12V inverted by inverter _{I 3} 0V, 12V and 0V of Karaji Oh voltage, in FIG. 1 or 2, dark 12V and 0V, the three in AND gate _{A 2} The logical product is used to generate electronic sound 2 in the block. (B) The electronic sound 2 is an electronic sound that warns (Claim b 2) and includes a popping sound of about 2 Hz, a synthesized sound, and the like. (Claim c)

[0014]

[Device body]

 According to the electric circuit diagrams of FIG. 1 or FIG. 2, FIG. 3, and FIG. 4, electronic parts are constructed and mounted inside the body. When using a solar cell as an optical sensor. (B) (1) The solar cell panel is placed on the top surface when the body is placed. (2) The dial for adjusting the sensitivity of light and dark is placed on the opposite side when the main body is placed. (3) Battery positive, negative battery, car radio voltage, car side light voltage 4-core wire is placed on either side when the body is placed. (B) The shape of the main body is the same as the shape of the solar cell panel, with the solar cell panel on the top and the electronic components on the bottom. (C) Fix the main body near the driver's seat where direct sunlight outside the vehicle enters the solar panel of the main body and is not affected by the light of the car lights.

When Cds is used as an optical sensor. (A) (1) A small window with a transparent cover that allows light to enter the optical sensor. (2) Dial to adjust the sensitivity of light and dark. (3) Battery negative, car radio voltage, car side light voltage 3 core wire. However, the car radio voltage and the car width lamp voltage are ORed with a diode and used as the positive power supply voltage of the IC. (B) The shape of the main body is smaller than the cigarette box. (C) Fix the main body near the driver's seat where the light from outside the vehicle is not incident on the light sensor and is not affected by the light from the car light.

[0016]

[Action]

Claims are as follows.

[0017]

【Example】

 When driving with a passenger car equipped with this device, (a) If you forget to turn on the light in the tunnel during the daytime, you will hear a warning sound in the dark (Fig. There is no sound (Fig. 4, claim b 2-d). When it comes out of the tunnel, there is a warning sound when it is bright (Claim 1-a of FIG. 3) and the light is turned off (Claim 1-b of FIG. 3). When passing through the tunnel in the same way during the daytime, when the lights are turned on and off properly, check the signs that are lit in front of the tunnel and turn on the lights. Claim c). When you enter the tunnel, there is no warning sound. Upon exiting the tunnel, there will be a bright warning sound again and the lights will turn off. (B) When it approaches the evening, there is an early warning sound when it is dark (Fig. 4, claim b2-c), and when the side lights are turned on, there is no warning sound (Fig. 4, claim b2-d). ). Especially when entering the roadway under the viaduct, it is dim even near the evening, but the side lights have already been turned on, so after entering the lane and driving for a while, I notice that it is quite dark and do not turn on. Even at night, there is no warning sound when it is dark (Fig. 4, claim b2-d), and when it becomes bright enough at dawn, there is a bright warning sound (Fig. 3, claim b1-a). Although it is turned off (Fig. 3, claim b 1-b), if it is turned off early, there is a warning sound in the dark (Fig. 4, claim b 2-c). (C) When the daylight is bright, when it is snowing, or when there is turbulence in the fog, and when the side lights are turned on, there is a warning sound when it is bright (Fig. 1-a). However, since the warning sound is not offensive to the ears (claim C), the driver can drive while listening to the warning sound. (D) When parking with the engine key in the OFF and LOCK positions. When it is lit during daytime and when it is bright, there is a warning sound when it is bright (Fig. 3, claim b 1-a) and it is turned off (Fig. 3, claim b 1-b).

[0018]

[Effect of the device]

As described in the examples, the following effects could be confirmed by hearing the warning sound of this device. (B) In the daytime, you can turn on and off the light switch, or turn on and off the illumination lights of the meters, so you can concentrate on checking the front. (B) It does not overuse the battery with unnecessary lighting or shorten the life of the light bulb with unnecessary lighting. Therefore, it is possible to meet the standard service life of the battery and the light bulb. (C) Regardless of whether or not your eyes are accustomed to the dimness, you can turn on the side lights by hearing the warning sound of the light sensor when it is dark. (D) In the daytime, it can be turned on and off properly and quickly on a dark or bright road, so there is no psychological resistance to the lighting operation.

Therefore, mutual safety between cars and cars and between cars and pedestrians can be improved.

[Brief description of drawings]

From Figure 1

FIG. 4 is an electric circuit diagram in which each part operates in the device of the present invention.

[Explanation of symbols]

Logic IC is an idiomatic symbol. The element is a C-MOS (C
complementary MOS). The arrow indicates the path of the electrical signal. The electric circuit diagram is the basic circuit diagram of this device.

Claims (1)

[Scope of utility model registration request] (1) (b) The condition that the driver can check the obstacles for the brightness and darkness, and the condition for the pedestrians to check the vehicle for the brightness and darkness is measured by an optical sensor. Brightness and darkness are determined by a logic IC. (Figs. 1 and 2) (b) The discriminant value of (a), lights that turn on when it is dark, such as car width lights and headlights, electricity when these switches are turned on and off, and the engine key is turned on. , ACC, OFF, electricity at the position of LOCK, the presence or absence of these three electricity logic I
At C, logical operation is performed as in the following (1) and (2), and the driver hears a warning sound for turning on and off. (1) Irrespective of the position of the engine key, when it is bright (Fig. 3), (a) When the light switch is turned on, there is a warning sound indicating the brightness. (B) When the light switch is turned off, there is no warning sound indicating the brightness. (2) When the engine key is in the ON or ACC position and it is dark (FIG. 4), (c) When the light switch is turned off, there is a warning sound indicating the darkness. (D) When the light switch is turned on, there is no warning sound indicating darkness. (C) The electronic sound as a warning sound has a sound quality without harshness. The bright electronic sound and the dark electronic sound can be distinguished, and the former is easier to hear than the latter. A light / dark warning device for a vehicle configured and operating as described above.