JPS6317138A - Apparatus for automatically lighting up light of automobile driven on sunset or at night and alarming for no-light drive - Google Patents

Abstract

PURPOSE:To prevent the no-light drive particularly on sunset by using a photosemiconductor which generates an output at the time when the natural light in a car compartment reduces to a certain illumination intensity and generating the alarm for urging the lighting up of the lamps when an output is generated from the semiconductor. CONSTITUTION:When the environment becomes gradually dark on sunset, also the illumination intensity of the natural light 2 in the car compartment reduces, and the resistance value of a photosemi-conductor CDS becomes high. Then, the electric current (i) which flows in a variable resistor R starts to flow in the base of a transistor TR1. When the illumination intensity of the natural light 2 lowers to a certain value, each collector current of TR1 and TR2 which are darlington-connected generates the saturated state, and TR3 and TR4 are turned ON, and a buzzer 6 and an alarm lamp 7 are intermittently connected and disconnected alternately, and electric conduction is carried out. Therefore, a driver is informed of the no-light drive.

Description

[Detailed Description of the Invention] (a) Industrial Application Field This invention enables self-excited lighting of a light stipulated by law,
It also relates to a device that warns drivers about driving without lights to ensure road traffic safety.

(b) Conventional technology Lights in vehicles, etc. are turned on by operating a light switch when the driver deems it necessary based on the sense of the driver, as required by law.

(c) Problems that the 0 invention attempts to solve Road Traffic Law No. 1
According to Section 0, Article 52, Paragraph 1 and Article 19 of the Enforcement Order, it is mandatory to turn on lights such as headlights of vehicles.

However, drivers have different sensibilities, personalities, and manners, and the weather changes from sunny to cloudy to rainy, the brightness of natural light at sunset and dawn is different, and recently, road lighting has become fully equipped. If you operate the light switch based on your senses, there is a strong tendency that the obligation to turn on the light will not be complied with even though it is stipulated by law.

The law defines nighttime as the period from sunset to sunrise, but currently it is extremely rare for drivers to turn on their lights with accurate judgment, and the authorities do not allow this. ing. Furthermore, since the duty to turn on the lights is stipulated by law,
Even though it is illegal to drive without lights at night, it is still common to see drivers openly driving without lights when the sun has already set and it is already dark enough to prevent visibility. It is.

Needless to say, the lights of vehicles and other vehicles traveling on the road are very important devices not only for drivers but also for pedestrians, and it is impossible to ensure safety in night traffic without lights.

On the other hand, statistical data clearly shows that many traffic accidents occur during the twilight hours, and it can be easily inferred that a considerable number of accidents are caused by driving without lights.

In any case, unlit lights when driving at night are most often caused by driver negligence, such as turning on the lights incorrectly or forgetting to turn them on.

In order to improve the current situation as described above, this invention automatically turns on the lights at sunset or at night, regardless of the driver's sense of difference, and at the same time warns the driver of driving without lights. With the goal.

(d) Means for Solving Problem 0 The present invention has a structure that operates by detecting a decrease in natural light inside a vehicle such as a running vehicle. Embodiments of the present invention will be described below with reference to the drawings.

a. As shown in Fig. 4, it is installed at the bottom of the dash board, where it is difficult for natural light to reach the interior of the vehicle. In other words, choose a location where it will not be affected by other lights at sunset or at night, and a location where the brightness will be lost quickly at sunset.

b. The operating system of this invention will be explained using FIG. 2.

As the sun sets, natural light disappears, or in other words, the illuminance of natural light decreases with the driving environment, and the device operates when the illuminance of natural light inside the vehicle decreases to a state to which the device of the present invention is sensitive.

When the original +1IIfi of a vehicle, etc. is rotating and in operation, 1
1 is generating power, and regardless of whether 12 is in operation or not, power is passed to 8, and 15 is ready for operation at any time. In that case, if 2 is ONL, 5.6. is closed and 9 is energized, so this device ;j/? The mechanism is such that the system either does not operate or the operation is stopped.

Therefore, when 15 is in a state where it can be activated, when the natural light inside the vehicle decreases to a certain level of illuminance, it will be activated and 1 will turn on, and at the same time 21 will be activated. Therefore, it is possible to prevent vehicles, etc., from driving without lights at sunset or at night.

(E) 9 Effects Regarding the embodiments of this invention, FIGS. 3, 4, 5,
The operation will be explained using FIG.

a. The operation of this invention when the engine is stopped and the vehicle etc. is not in operation will be explained with reference to FIG.

When the engine is stopped, the generator is not generating electricity, so power is not applied to 8, and neither 17 nor 18 operates.

Therefore, 21 through which ■ passes through 10 also does not operate.

-b. The operation of the device of the present invention during daytime driving of a vehicle will be explained with reference to FIG. When the engine rotates and the generator generates electricity, 8 is energized and 17 is electromagnetized, so 22
When 23 and 23 are closed, the current is applied until 19. However, during daytime driving, the illuminance of natural light inside the vehicle is high, so using the effect of 24, Q3. Q4. 18 is electromagnetized by operating a switch circuit using . So, 19.20. remains open. Therefore, since 21 is not activated and 10 is not energized, the lamp is not lit.

The operation of the device of the present invention during C0 sunset and night driving is illustrated in FIG. As the illuminance of 25 decreases from the state in the previous section, the action of 24 changes to dark current, and when the illuminance changes to a certain level, 18 is no longer electromagnetic.1.1
9.20. closes, 21 is activated, 26 warns the driver of driving without lights, and at the same time 10 is energized and the lights are turned on.

d. A situation in which the driver notices the alarm issued by the device of the present invention and turns on the light switch will be explained with reference to FIG. When the light switch is turned on, e is energized to 9, so 27 is electromagnetized and 28.29. will be released. Therefore, since e of the device of the present invention is cut off, 17 is not electromagnetized, operation of 21 is stopped, and e is no longer energized to 10 as well. In this case, the light is turned on because e is energized from the light switch.

(F), Example a, even when the driver starts the engine at night, the state shown in Fig. 5 explained in the previous section C0 will occur, so the driver must always turn on the light switch and drive in the state shown in Fig. 6. There must be.

b. Places specified in Article 19 of the Road Traffic Law Enforcement Order;
In other words, when driving inside a tunnel or inside a factory, the illuminance of natural light decreases, so the state described in FIG. 5 is automatically established, and driving without lights can be similarly prevented.

C6 The circuit that operates 17 using the generator's power generation, as explained in each section above, may be input from the engine switch, but in that case, the light will automatically turn on and the power supply voltage will drop when the engine starts. Normally, when starting an engine, the start switch is operated to reduce power consumption from the battery. The design was designed so that it can be operated with ease.

d. 21 in each of the above-mentioned figures is a dial display along with an alarm sound at 26. For example, a method of warning by displaying "Please turn on the lights" is also considered.

(G) 0 Effects of the Invention The effects of this invention are that by equipping each vehicle involved in road traffic with this device, the lights of each vehicle can be uniformly turned on without delay at sunset or at night; The driver of each vehicle will be warned of driving without lights, so please make sure the driver of each vehicle operates the light switch correctly. Of course, there will be no careless driving without lights on brightly lit roads at night, and the operation of lights in dark places as required by law will become more accurate. Therefore, the effect of instruction regarding lighting of lamps is very large. On the other hand, since it can be used as a device for automatically flashing the lights inside cars and passenger trains, it is useful for improving service and saving energy.

In any case, if all vehicles could be equipped with the device according to this invention, most of the provisions of the Road Traffic Act, Article 52, etc., would be met, and this would greatly contribute to ensuring road traffic safety. can.

[Brief explanation of the drawing]

FIG. 1 is a drawing showing an example of the mounting position of the device of the present invention in an automobile. 15 is the device of the invention. FIG. 2 is a diagram illustrating the system of operation of automatically turning on the lights of a car and warning of driving with the lights on by the device of the invention. 1
is a light, 2 is a light switch, 3.4.5.6. are light switch contacts, 7.8.9.10.11. 12 is a terminal of the device of the invention, 12 is a generator of the automobile, 13 is a voltage regulating relay of the automobile, 14 is a power source battery of the automobile, 15 is the device of the invention, and 21 is an alarm. Figure 3 shows the wiring diagram of the device of the invention and when the engine is stopped. Drawing explaining the state where there is no rIJj. 7 is the input terminal from the battery, 8 is the input terminal from the generator, 9 is the input terminal from the light switch, 10 is the positive output terminal for lighting the light when the device of the invention is activated, and 11 is the negative terminal. Terminal R1 is a variable resistor, Ql
, Q2. is a transistor, 17.18. is an electromagnetic relay,
19.20. is the 18 contacts, and 21 is the alarm. Figure 4 shows the situation when driving a car during the daytime.
Drawings explaining the operation of the device of the invention. 7, 8, 9.1
0.11 are terminals of the device of the invention, R1, R2 are variable resistors, Ql, Q2 . Q3. Q4. is a transistor, 17.1
8. is an electromagnetic relay, 19. ．． 20. is 18 contacts, 21
22.2.32 is the 17 contacts, 24 is the optical semiconductor (SPD), and 25 is the natural light inside the vehicle. FIG. 5 is a diagram illustrating how the device of the present invention operates when driving a car at sunset or at night. 7.8.9
．． 10゜11 is the terminal of the device of the invention, ■ is the positive power supply, e
is ground power supply 1?1. R2, is a variable resistor, Ql, Q2.
Q3. Q4. is a transistor, 17.18° is an electromagnetic relay, 19.20. 18 contacts, 21 an alarm, 22.
23. -17 is the contact point, 24 is the SPD, 25 is the natural light inside the vehicle, and 26 is the alarm sound. FIG. 6 is a diagram illustrating the situation when the driver notices the alarm sound emitted by the device of the invention and turns on the light switch while driving the vehicle at sunset or at night. 7, 8, 9.
10.11 is the terminal of the device of the invention, ■ is the positive power supply, e is the negative power supply, r? IJ? 2° is variable resistance, Ql, Q2
．． Q3. Q4. is a transistor, 17.18.27 is an electromagnetic relay, 19.2 skin is a contact point of 18, 21 is an alarm, 2
2.23. is the contact point of 17, 24 is the SPD, 25 is the natural light inside the vehicle, 26 is the alarm sound, edict, and 29° is the contact point of 27.

Claims (1)

[Claims] A device that uses optical semiconductor elements to detect a decrease in natural light in the interior of a vehicle, etc., and automatically turns on the lights and warns of driving without lights.