KR101108099B1 - Multi-function auto light device for automobile - Google Patents

Abstract

The present invention relates to a multifunction auto light device for an automobile, comprising: a controller configured with a microprocessor-based (ATmega) CPU; A power switch connected to an input of the controller, the power switch capable of turning on / off all functions of an auto light device, and a security switch configured to generate an alarm in response to an external shock applied to the vehicle; It is connected to the input terminal of the controller, has an illuminance sensor and is connected to an illuminance detector for use in automatically controlling on / off of tail lights and headlights according to external illuminance, and connected to a vehicle speed sensor installed in the vehicle, Vehicle speed sensor connection for the automatic on / off function of the headlight, which automatically turns off the headlights and turns on the headlights automatically when the vehicle starts.It is connected to the starting line of the vehicle. Or a start line detector for automatically turning on the headlights when the vehicle is started, connected to the battery side installed in the vehicle, and detecting and warning the low and high voltage and the normal voltage by detecting the battery voltage of the vehicle or when the battery voltage falls below a certain voltage. Battery voltage detector to prevent battery discharge by turning off the headlights and taillights A shock sensing unit for flashing the headlights and taillights and generating an alarm sound when an impact is applied to the vehicle from the outside; Connected to the output terminal of the controller, consisting of a plurality of LEDs and a status value display unit for displaying the status value for monitoring the status of the battery, the lighting state of the headlights and taillights and the security operation status, the headlight relay and taillights installed in the vehicle It is characterized in that it is connected to the relay in parallel is provided with a headlight driver and taillight driver for ON / OFF control of the driving of the headlights and taillights, and a buzzer driver for generating a warning sound.
The present invention can be implemented not only precisely and various functions by configuring a digital circuit, but also can perform a stable operation, and can provide a multi-functional service with a low price.

Description

MULTI-FUNCTION AUTO LIGHT DEVICE FOR AUTOMOBILE

The present invention relates to a car auto light device that automatically turns on or off the tail light or headlight according to the external brightness, and more particularly, to improve the function of the product to improve the function of the product as well as environmental protection and energy saving In addition, the present invention relates to a multi-function auto light device for a vehicle that can prevent traffic accidents.

In general, an auto light device for a vehicle is a device that automatically turns on or off a tail light or a headlight according to an external brightness (illuminance) while driving a vehicle.

The auto light device for a vehicle may be mounted at the time of shipment of a vehicle or may be mounted at an online or offline vehicle supply store. The electronic auto light device is a simple function of turning on or off a tail light and a headlight according to external illumination. The latter auto light device is almost identical to the function applied at the time of shipment from the vehicle, and some intelligent auto light products do not implement additional functions besides the basic functions, and the price is hindering the popularization. It is becoming.

According to a report published by the Korea Institute of Environmental Research, the study found that headlights not only increase fuel consumption but also increase pollutants.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and is a multi-functional auto light device for automobiles that is capable of realizing precise and diverse functions by implementing digital circuits by applying a microprocessor-based CPU and enabling stable operation. The purpose is to provide.

The present invention is configured to automatically turn off the headlights when the vehicle is stopped at night, in conjunction with the vehicle speed sensor, so that it is possible to expect a fuel savings and emission reduction effect, and can provide a variety of services by implementing a multi-function at an affordable price To provide a multifunctional auto light device for a vehicle.

The present invention provides a controller comprising a microprocessor-based (ATmega) CPU;

A power switch connected to an input of the controller, the power switch capable of turning on / off all functions of an auto light device, and a security switch configured to generate an alarm in response to an external shock applied to the vehicle;

It is connected to the input terminal of the controller, has an illuminance sensor and is connected to an illuminance detector for use in automatically controlling on / off of tail lights and headlights according to external illuminance, and connected to a vehicle speed sensor installed in the vehicle, Vehicle speed sensor connection for the automatic on / off function of the headlight, which automatically turns off the headlights and turns on the headlights automatically when the vehicle starts.It is connected to the starting line of the vehicle. Or a start line detector for automatically turning on the headlights when the vehicle is started, connected to the battery side installed in the vehicle, and detecting and warning the low and high voltage and the normal voltage by detecting the battery voltage of the vehicle or when the battery voltage falls below a certain voltage. Battery voltage detector to prevent battery discharge by turning off the headlights and taillights A shock sensing unit for flashing the headlights and taillights and generating an alarm sound when an impact is applied to the vehicle from the outside;

Connected to the output terminal of the controller, consisting of a plurality of LEDs and a status value display unit for displaying the status value for monitoring the status of the battery, the lighting state of the headlights and taillights and the security operation status, the headlight relay and taillights installed in the vehicle It is characterized in that it is connected to the relay in parallel is provided with a headlight driver and taillight driver for ON / OFF control of the driving of the headlights and taillights, and a buzzer driver for generating a warning sound.

The present invention can be implemented not only precisely and various functions by configuring a digital circuit, but also can perform a stable operation, and can provide a multi-functional service with a low price.

The present invention can reduce the driver's discomfort and concentrate on safe driving with the function that the headlights are automatically turned on at the same time as starting and automatically turned off at the start and stop, and in conjunction with the vehicle speed sensor The headlights can be turned off automatically so that fuel savings and emissions can be reduced, and generators and batteries, which are one of the most important functions of the vehicle, can be monitored to check their operating conditions to detect abnormalities. It can warn you and help you to drive the vehicle safely, as well as prevent inconvenience and excessive repair costs in advance, and provide convenience by illuminating the lighting for a certain time when the ignition key is turned off after parking. In addition, it is convenient to prevent crime of female drivers, especially in dark parking lots. Safety can be provided, and the application of the security function provides an effective effect of performing the anti-theft function by generating an alarm in response to an external shock.

1 is a block diagram showing a multi-function auto light device for a vehicle according to the present invention.
2 and 3 is a circuit diagram showing a multi-function auto light device for automobiles according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, a multi-function auto light device for an automobile according to an embodiment of the present invention is a controller comprising a microprocessor-based (ATmega) CPU as a control unit to configure a digital circuit that can implement a precise and various functions (U2) is provided, and the power switch (SW1) for turning on and off all functions of the auto light device, and the security (security) function to generate an alarm in response to an external shock applied to the vehicle Secure switch (SW2) for each provided at the input terminal of the controller (U2) is provided.

An input terminal of the controller U2 includes an illumination intensity detection unit 11 for an auto light function, a vehicle speed sensor connection unit 12 for automatic headlight on / off function, an escort function, and a daytime running light. a start line detection unit 13 for a light function, a battery voltage detector 14 for a generator monitoring function and a battery save function, an impact sensing unit 15 for a secure function, and a constant voltage The driver 16 is provided with connection, respectively.

The illuminance detection unit 11 has an illuminance sensor RV1 for detecting the brightness (illuminance) of the outside of the vehicle, and transmits an external illuminance detection value to the controller U2 and taillights according to the external illuminance input from the controller U2. It is to be used to realize basic auto light function by automatically turning on / off control of lights and headlights.

The vehicle speed sensor connector 12 is connected to a vehicle speed sensor installed in the vehicle and amplifies the vehicle traveling speed detection value and sends the detected value to the controller U2. The transistors Q6 and Q7 and the resistors R21 to R24 and Consists of a combination of condensers (C14) and (C16), and implements a headlight automatic ON / OFF function that automatically turns off the headlights in the ON state when the vehicle is stopped by a signal wait, etc. It is to use.

The starting line detecting unit 13 is composed of a combination of a zener diode D9, a condenser C10, and a resistor R17 and R18, and is connected to the starting line of the vehicle, and starts after parking according to the end of vehicle operation at night. When the key is removed, this signal is sent to the controller (U2) side, and the headlight and taillight are turned on for 30 seconds under the control of the controller, which is used to implement the escort function. It is also used to implement running light function.

For reference, most of the vehicle starting line is a power line necessary for starting the car, and + 12V flows in the second stage through the IG1 power line, which is + 12V, and auxiliary power line such as an air conditioner or heater when the two stages and the start motor are rotated. It is divided into IG2 power line, which is the power line that rotates the car start motor, start power line that flows + 12V only when the key is started, and ACC power line which is connected to the radio as a power line for car accessories.

The battery voltage detector 14 is composed of a combination of a zener diode D10, a capacitor C18, and a resistor R25, R26, and is connected to a battery side installed in the vehicle. It is used to implement the generator monitoring function that can display or warn low voltage, high voltage and normal voltage through the monitor of the battery voltage by sending it to the U2) side, and control the controller (U2) when the battery voltage falls below a certain voltage. This is to use the battery save function to prevent the battery discharge due to excessive current consumption by turning off the headlights and taillights.

The shock sensing unit 15 is composed of a combination of transistors Q10 and Q11, resistors R30 to R34, and a capacitor C23. When an impact is applied to the vehicle from the outside, the shock sensing signal is amplified and the controller ( It is sent to the U2) side, and is intended to be used to implement a security function that generates an alarm sound while flashing the headlights and taillights through the control of the controller U2.

The constant voltage driver 16 is configured to enable the operation of the apparatus by receiving power from the vehicle battery even after removing the vehicle's ignition key, and to supply a driving voltage of 5V to the circuit of the apparatus.

In addition, the output terminal of the controller U2 receives a control output of the controller and displays a status value for displaying a status value for the monitor 21, and the headlight driver 22 for the ON / OFF control of the headlights and taillights installed in the vehicle And taillights driving unit 23, and the buzzer driving unit 24 for generating a warning sound are provided.

The state value display unit 21 is composed of a plurality of LEDs to monitor the state of the battery, to monitor the lighting state of the lamps (headlights and taillights), and to monitor the operation state of the security.

For example, the status value display for monitoring the battery status may be displayed as red light when the low voltage (12.4V or less), red blinking and warning sound when the high voltage (14.7V or more), and green light when normal. will be.

Status value display for monitoring the status of the lamp is off when the tail light and headlight are off, green light is on the tail light, red light on the head light, and orange light on the tail light and headlight You can do it.

In order to display the operation state of the security, it may be displayed in the boundary release state when it is turned off, in the standby state when the red light is turned on, and in the boundary mode state when the red blinks.

The headlight driver 22 includes a combination of a resistor R28, a capacitor C21, and a transistor Q8 and is connected in parallel to a headlight relay installed in a vehicle, and drives the headlamp according to the output of the controller U2. It is for ON / OFF control.

The taillight driver 23 is composed of a combination of a resistor R29, a capacitor C22, and a transistor Q9, and is connected in parallel to a taillight relay installed in a vehicle. The taillight driver 23 drives the taillight according to the output of the controller U2. It is for ON / OFF control.

The buzzer driver 24 preferably includes an internal driver 24a including an internal buzzer LS1 and an external driver 24b connected to the external buzzer LS2 to increase the recognition efficiency of the alarm sound. .

Referring to the operation of the multi-function auto light device for a vehicle according to the present invention having the above-described configuration is as follows.

When the power switch SW1 is pressed once, the apparatus of the present invention can be used, and the detected value for the external illuminance from the illuminance detection unit 11 is input to the controller U2 and the illuminance detected value is compared at the controller U2. The auto light function is executed by automatically turning on / off the headlights and taillights according to the external illumination.

The controller U2 receives the driving speed value of the vehicle from the vehicle speed sensor connecting unit 12, and when the vehicle stops while driving at night, the control command is given to the headlight driving unit 22 to turn off the headlight in the ON state. When the vehicle starts, the headlights are automatically turned on again to prevent unnecessary power consumption and save energy.

In addition, when the security switch (SW2) is pressed once in the ON state of the ignition key, the headlight is controlled to be OFF. Therefore, it is possible to use it when it is necessary to turn off the headlight in the ON state while driving.In this case, the status value display unit 21 is It turns on security related LED.

Then, if the security switch (SW2) is pressed once more or the ignition key is turned off and on, the headlight off function can be canceled.

The controller U2 checks the starting state at all times through the input signal input from the start line detecting unit 13, and outputs the control to automatically turn on the headlights when the vehicle starts. If the ignition key is removed during parking after driving a vehicle including night, the controller U2 controls the headlight driving unit 23 and the taillight driving unit 23 to turn on the headlight and the taillight for 30 seconds. It will execute the escort function.

Here, in the existing vehicle to turn on the daytime headlights, the taillights must be turned on to feel uncomfortable as a structural disadvantage that can turn on the headlights, and at the same time, it is possible to reduce energy waste due to unnecessary lighting of taillights.

In addition, through the escort function, because the lamp is enlarged in the vehicle, it can be very useful for dark places or female drivers, and will prevent inadvertent attacks.

The controller U2 receives the checked battery voltage from the battery voltage detector 14. When the generator is charged at a low voltage (12.4 V or less), the red LED is turned on by controlling the status value display unit 21, and the high voltage ( 14.7V or more) to control the status value display unit 21 to flash the red LED and to control the internal drive unit (24a) to generate a warning sound, if the normal to turn on the green LED to execute the generator monitor function.

In addition, when the battery voltage falls below 11.4V, the controller U2 sends a control output to the headlight driving unit 22 and the taillight driving unit 23 to control the headlights and taillights to be OFF to prevent battery discharge due to excessive current consumption. The save function will be executed.

The controller (U2) receives a signal from the impact sensing unit 15 that the external shock is applied to the vehicle. When 60 seconds elapse after the start key is removed while the security switch (SW2) is turned on, the controller switches to the alert mode. While the red LED is flashing through the status value display unit 21, if an impact is applied from the outside, the controller U2 controls the buzzer driver 24, but both the internal driver 24a and the external driver 24b. By sending a control output to control the internal buzzer (LS1) and the external buzzer (LS2) to generate an alarm sound at the same time to send a control output to the headlight driving unit 22 and taillight driving unit 23 is executed so that the headlight and taillight flash.

At this time, it will be preferable to generate an alarm sound of 90db or more through the external buzzer LS2. When the security switch SW2 is pressed again, the security function can be released.

U2: Controller SW1: Power Switch
SW2: Security switch LS1, LS2: Buzzer
11: Illumination detection part 12: Vehicle speed sensor connection part
13: start line detection unit 14: battery voltage detection unit
15: shock sensing unit 21: status value display unit
22: headlight driving unit 23: taillight driving unit
24: buzzer driving part

Claims (3)

In the automotive auto light device,
A controller configured with a microprocessor-based (ATmega) CPU;
A power switch connected to an input of the controller, the power switch capable of turning on / off all functions of an auto light device, and a security switch configured to generate an alarm in response to an external shock applied to the vehicle;
It is connected to the input terminal of the controller, has an illuminance sensor and is connected to an illuminance detector for use in automatically controlling on / off of tail lights and headlights according to external illuminance, and connected to a vehicle speed sensor installed in the vehicle, Vehicle speed sensor connection for the automatic on / off function of the headlight, which automatically turns off the headlights and turns on the headlights automatically when the vehicle starts.It is connected to the starting line of the vehicle. Or a start line detector for automatically turning on the headlights when the vehicle is started, connected to the battery side installed in the vehicle, and detecting and warning the low and high voltage and the normal voltage by detecting the battery voltage of the vehicle or when the battery voltage falls below a certain voltage. Battery voltage detector to prevent battery discharge by turning off the headlights and taillights A shock sensing unit for flashing the headlights and taillights and generating an alarm sound when an impact is applied to the vehicle from the outside;
Connected to the output terminal of the controller, consisting of a plurality of LEDs and a status value display unit for displaying the status value for monitoring the status of the battery, the lighting state of the headlights and taillights and the security operation status, the headlight relay and taillights installed in the vehicle A multi-function auto light device for automobiles, comprising: a headlight driving unit and a taillight driving unit for turning on / off control of headlights and taillights connected in parallel to a relay, and a buzzer driving unit for generating a warning sound. The method of claim 1,
The input terminal of the controller is a multi-function auto light device for a vehicle, characterized in that the constant voltage driving unit for supplying a driving voltage to receive the power from the vehicle battery and to perform the operation of the device even after removing the vehicle's start key. The method of claim 1,
The buzzer drive unit is a multi-function auto light device for an automobile, characterized in that it comprises an internal drive unit including an internal buzzer, and an external drive unit connected to the external buzzer.

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