SMART HEADLIGHT SYSTEM FOR VEHICLES

Abstract

Abstract The present invention discloses a smart headlight system for vehicles. The system (1) utilizes a light sensor (3), ignition key (4), LED panel (5), and a microcontroller (2) to achieve energy efficiency and safety. The controller (2) monitors ambient light levels and adjusts the LED panel's (5) brightness accordingly, turning off the headlights when lighting conditions improve or when the ignition is turned off after a 5-minute delay. This innovative solution addresses common issues with traditional headlights, such as forgetfulness and unnecessary energy consumption, to enhance road safety and reduce energy waste.

Specification

Description:SMART HEADLIGHT SYSTEM FOR VEHICLES

Field of Invention
The present invention relates to the smart headlight system for vehicles. More particularly, a smart headlight system for vehicles that automatically adjusts its intensity based on ambient light conditions, providing an energy-efficient and safe solution for vehicles.

Background of the Invention
The headlight is a lamp attached to the front of a vehicle to illuminate the road ahead. The vehicle accidents which are related to high beam vehicle headlights have led to massive human and financial losses over the year, the safety of people are the most significant issues around the world while driving specially at night due to these high beams. The people have developed smart vehicle headlights to protect human life and prevent dangers during night driving. Most of headlights control systems in the recent vehicles are designed to control the headlight intensity manually in On and Off modes, and there is no moderate level to control the headlights intensity according to the surrounding lighting condition.
In the context of smart vehicle headlights, prior art includes various research and technological advancements related to vehicle lighting systems and automation. Here are some relevant references and their associated drawbacks:
Journal Article: G. K. Parker and M. R. Anderson, "Adaptive Headlight Systems for Enhanced Road Safety," IEEE Transactions on Intelligent Transportation Systems, vol. 15, no. 3, pp. 1234-1245, 2014.
Technical Drawback: While adaptive headlight systems can adjust the direction of headlights based on steering and speed, they do not address the issue of automatic activation and deactivation based on ambient light conditions or battery management.
Conference Paper: H. S. Lee and J. H. Kim, "Energy-Efficient LED Headlights for Automotive Applications," in Proceedings of the International Conference on Automotive Lighting Systems, 2017, pp. 45-50.
Technical Drawback: Although this paper discusses energy-efficient LED headlights, it primarily focuses on the efficiency of the LEDs themselves rather than a comprehensive automated system for controlling headlight activation and deactivation based on real-time environmental conditions.
The prior art related to the proposed invention can be found in granted and published patent applications focused on adaptive headlight systems. One such example is US Patent 9,432,632 B2, titled "Adaptive Headlight System and Method" granted to Ford Global Technologies, LLC in 2016.
The prior art discusses an adaptive headlight system that adjusts its intensity based on ambient light conditions detected by a camera. However, one of the technical drawbacks of this system is that it requires complex image processing algorithms to detect the ambient light conditions, which can increase the system's computational load and power consumption.
The primary technical drawback across these prior arts is the lack of integration between automatic headlight activation based on ambient light levels and an automated system to prevent battery drain. Most existing solutions focus either on adaptive lighting or energy efficiency but do not combine both features with automated control to enhance overall vehicle safety and battery management.
The present invention aims to overcome these technical drawbacks by using a combination of a light sensor and a microcontroller to provide a more efficient, reliable, and accurate solution for adaptive headlight control.

Objectives of the Invention
The prime objective of the present invention is to provide a smart headlight system for vehicles.

Another object of this invention is to provide the smart headlight system for vehicles that automatically adjusts its intensity based on ambient light conditions.
Another object of this invention is to provide the smart headlight system for vehicles where the light sensor and microcontroller are designed to operate effectively across a broader range of ambient light conditions, including extreme lighting conditions such as heavy rain, fog, or direct sunlight.
Another object of this invention is to provide the smart headlight system for vehicles where the system automatically activates headlights at night, adjusts their brightness based on ambient light to save energy, and turns them off after five minutes if the ignition is off.
Yet another object of this invention is to provide the smart headlight system for vehicles that enhances safety and efficiency by automating headlight operation in response to real-time lighting conditions.
These and other objects of the present invention will be apparent from the drawings and descriptions herein. Every object of the invention is attained by at least one embodiment of the present invention.
Summary of the Invention
In one of the aspects of the invention, it provides the smart headlight system for vehicles that improve energy efficiency and safety by automating headlight operation.
In one of the aspects of the present invention, the smart headlight system for vehicles comprises of microcontroller, Light Sensor, Ignition Sensor, LED Panel (Headlight), MOSFETs, Transformer and Rectifier, Buzzer and camera.
In another aspect of the invention, the smart headlight system for vehicles automates the process of headlight activation and deactivation and allows for continuous adjustments in light intensity, providing the driver with optimal visibility while conserving energy.
Brief Description of Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure. Further objectives and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawing and wherein:
Figure 1 illustrates the block diagram according to preferred embodiment of the present invention.

DETAIL DESCRIPTION OF INVENTION
Unless the context requires otherwise, throughout the specification which follow, the word "comprise" and variations thereof, such as, "comprises" and "comprising" are to be construed in an open, inclusive sense that is as "including, but not limited to".
In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. It should also be noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

The headings and abstract of the invention provided herein are for convenience only and do not interpret the scope or meaning of the embodiments. Reference will now be made in detail to the exemplary embodiments of the present invention.
The present invention discloses a smart headlight system for vehicles that automate the process of switching on and off, as well as adjusting light intensity based on environmental conditions.
In describing the preferred embodiment of the present invention, reference will be made herein to like numerals refer to like features of the invention.
According to preferred embodiment of the invention, referring to Figure 1, the smart headlight system (1) for vehicles comprises of a microcontroller (2), Light Sensor (3), Ignition Sensor (4), LED Panel (Headlight) (5), MOSFETs (6), Transformer (7), Rectifier (8), Buzzer (9) and camera (10).
Microcontroller (2) serves as the brain of the system, orchestrating all operations by receiving inputs from the light sensor (3), ignition sensor (4), and other peripherals. The controller (2) processes this data to make real-time decisions about the status and brightness of the headlights.
Light Sensor (3): The light sensor detects ambient light levels. When the external light falls below a certain threshold (e.g., during nighttime or low-visibility conditions), it sends a signal to the microcontroller (2) to activate the headlights. If the ambient light increases (e.g., during the day), the controller (2) dims or turns off the headlights, contributing to energy savings.
Ignition Sensor (4): The ignition sensor detects the state of the vehicle's ignition system. When the vehicle is turned on, the controller (2) ensures that the headlight system is active. Once the vehicle is turned off, the controller delays turning off the headlights by 5 minutes to ensure visibility for a short duration after the car stops, enhancing safety.
LED Panel (Headlight) (5): The headlights consist of an LED panel, which is managed by MOSFETs (6) connected to the microcontroller (2). The controller (2) adjusts the brightness of the LED panel based on real-time environmental data from the light sensor (3). This dynamic adjustment ensures that the headlights provide optimal illumination without consuming excess energy.
MOSFETs (6): The MOSFETs function as switches that control the flow of current to the LED panel. The controller (2) activates or deactivates the MOSFETs (6) based on the ambient light levels and ignition sensor (4) data, effectively managing the power supplied to the headlights.
Transformer (7) and Rectifier (8): A transformer (7) and rectifier (8) provide the necessary power conversion and regulation for the system (1). The rectifier (8) converts the AC power from the transformer (7) to DC, and a regulator (11) ensures stable voltage is supplied to the microcontroller (2) and other components.
Buzzer (9): The buzzer, connected to the controller (2), provides audible feedback in certain situations, such as when the headlights are left on, or if any malfunction is detected. This feature enhances user interaction and system transparency.
Cameras (10): Optional cameras can be integrated into the system (1) for advanced functionalities like adaptive lighting, where the system adjusts the headlights based on the distance to oncoming vehicles or other objects, further improving safety.
According to another embodiment of the invention, the smart headlight system (1) for vehicles operates by integrating a light sensor (3), a controller (2), and an LED panel (5) to create a smart headlight system.
• Initially, when the vehicle's ignition is started, the system (1) activates and begins monitoring ambient light levels through the light sensor (3);
• If the light intensity falls below a predefined threshold, the controller (2) turns on the LED headlights (5);
• The system (1) then continuously adjusts the brightness of the headlights using a MOSFET (6) driver to match the external lighting conditions, ensuring optimal illumination while conserving energy;
• Additionally, the controller (2) automatically deactivates the headlights when ambient light levels improve or after a five-minute delay if the ignition is turned off, preventing unnecessary battery drain.
According to another embodiment of the invention, in the smart headlight system (1) for vehicles, the automated control of headlights based on environmental conditions ensures that the driver does not have to manually switch the lights on and off, addressing common problems like forgetfulness. The delay mechanism after ignition shutdown prevents sudden loss of illumination when exiting the vehicle at night. The integration of MOSFETs (6) and LED panels (5) improves energy efficiency by only supplying the necessary power, reducing overall energy consumption and extending the life of the headlight system.
According to another embodiment of the invention, the system (1) combines automatic activation, dynamic brightness adjustment, and battery management into a cohesive system, enhancing both vehicle safety and energy efficiency. It significantly improves road safety and reduces energy waste compared to traditional headlight systems. It automates the process of headlight activation and deactivation and allows for continuous adjustments in light intensity, providing the driver with optimal visibility while conserving energy.
According to another embodiment of the invention, the smart headlight system (1) for vehicles has following features that sets it apart from prior arts:
1. Simplified Algorithm for Ambient Light Detection: The invention's algorithm eliminates the need for complex image processing, reducing computational load and power consumption, and enabling faster and more efficient processing of ambient light conditions.
2. Light Sensor-Based Ambient Light Detection: The use of a light sensor (3), rather than cameras or complex sensors, provides a cost-effective and efficient solution for detecting ambient light conditions, reducing the overall system cost and increasing its feasibility for mass production.
3. Microcontroller for Real-Time Processing: The invention's use of microcontroller (2) enables real-time processing of ambient light data, ensuring accurate and timely adjustments to the headlight system, and improving driver safety and convenience.
4. Broader Ambient Light Range and Adaptability: The invention's design enables it to operate effectively across a broader range of ambient light conditions, including extreme lighting conditions, and adapt to various driving scenarios, making it a more versatile solution.
5. Modular Design for Easy Customization: The invention's modular design and use of a programmable controller (2) enable easy customization and adaptation to various vehicle types and driving scenarios, increasing its flexibility and applicability.
6. Reduced Maintenance and Calibration Requirements: The invention's design eliminates the need for frequent software updates and calibration, reducing maintenance costs and ensuring optimal performance in all driving conditions.
7. Improved Reliability and Fault Tolerance: The invention's simplified design and reduced reliance on complex sensors and cameras increase its overall reliability, reducing the likelihood of system failures and improving driver safety.
According to another embodiment of the invention, the smart headlight system (1) for vehicles has following advantages:
1. Dynamic Intensity Adjustment: Unlike traditional automatic headlights that simply activate or deactivate based on ambient light, the present system (1) continuously monitors external lighting conditions and adjusts the LED panel's (5) brightness to match the required illumination level. This dynamic adjustment ensures optimal visibility while conserving energy.
2. Automatic Shutdown and Timeout: The system (1) incorporates a safety timeout feature that automatically turns off the headlights after a specified period if the ignition is off, preventing accidental battery drain. This feature addresses a common user oversight.
3. Integrated Control System: The use of an microcontroller (2) provides a centralized control platform for managing the light sensor (3), ignition key, and LED panel (5). This integration enables seamless communication and coordination between the system components.
4. Energy Efficiency: By optimizing light intensity based on environmental conditions and implementing an automatic shutdown feature, the system (1) promotes energy conservation and extends battery life.
According to another embodiment of the invention, the smart headlight system (1) for vehicles has application in the development of Advanced Driver-Assistance Systems (ADAS) and Autonomous Vehicles. The automotive industry can benefit from the invention's novel features, including its simplified algorithm, reduced system cost, and improved reliability, to develop more advanced and efficient ADAS and autonomous vehicles. The invention's industrial use can lead to improved road safety, reduced accidents, and enhanced driver experience.
Although a preferred embodiment of the invention has been illustrated and described, it will at once be apparent to those skilled in the art that the invention includes advantages and features over and beyond the specific illustrated construction. Accordingly, it is intended that the scope of the invention be limited solely by the scope of the hereinafter appended claims, and not by the foregoing specification, when interpreted in light of the relevant prior art.

List of Reference Numbers

1. Smart headlight system 2. Microcontroller
3. Light Sensor 4. Ignition Sensor
5. LED Panel (Headlight) 6. MOSFETs
7. Transformer 8. Rectifier
9. Buzzer 10. Camera


, Claims:We Claim;
1. A smart headlight system (1) for vehicles comprises of a microcontroller (2), a Light Sensor (3), an Ignition Sensor (4), a LED Panel (Headlight) (5), a MOSFETs (6), a Transformer (7), a Rectifier (8), a Buzzer (9) and a camera (10), wherein the system (1) automate the process of switching on and off headlight, adjusts light intensity based on environmental conditions.
2. The smart headlight system (1) for vehicles as claimed in claim 1, wherein
• The Microcontroller (2) manages all operations by receiving inputs from the light sensor (3), ignition sensor (4), and other peripherals, then processes this data to make real-time decisions about the status and brightness of the headlights;
• The light sensor (3) detects ambient light levels, when the external light falls below a certain threshold, it sends a signal to the microcontroller (2) to activate the headlights, if the ambient light increases, the controller (2) dims or turns off the headlights, contributing to energy savings;
• The ignition sensor (4) detects the state of the vehicle's ignition system, when the vehicle is turned on, the controller (2) ensures that the headlight system is active, once the vehicle is turned off, the controller delays turning off the headlights by 5 minutes to ensure visibility for a short duration after the car stops, enhancing safety;
• The LED Panel (Headlight) (5) is is managed by MOSFETs (6) connected to the microcontroller (2), the controller (2) adjusts the brightness of the LED panel based on real-time environmental data from the light sensor (3);
• MOSFETs (6) function as switches that control the flow of current to the LED panel, the controller (2) activates or deactivates the MOSFETs (6) based on the ambient light levels and ignition sensor (4) data, effectively managing the power supplied to the headlights;
• The Transformer (7) and Rectifier (8) provide the necessary power conversion and regulation for the system (1), the rectifier (8) converts the AC power from the transformer (7) to DC, and a regulator (11) ensures stable voltage is supplied to the microcontroller (2) and other components;
• The Buzzer (9) is connected to the controller (2), provides audible feedback in certain situations, such as when the headlights are left on, or if any malfunction is detected;
• The cameras (10) can be integrated into the system (1) for advanced functionalities, where the system adjusts the headlights based on the distance to oncoming vehicles or other objects, further improving safety.
3. The smart headlight system (1) for vehicles as claimed in claim 1, wherein the system (1) operates in the following steps:
• Initially, when the vehicle's ignition is started, the system (1) activates and begins monitoring ambient light levels through the light sensor (3);
• If the light intensity falls below a predefined threshold, the controller (2) turns on the LED headlights (5);
• The system (1) then continuously adjusts the brightness of the headlights using a MOSFET (6) driver to match the external lighting conditions, ensuring optimal illumination while conserving energy;
• Additionally, the controller (2) automatically deactivates the headlights when ambient light levels improve or after a five-minute delay if the ignition is turned off, preventing unnecessary battery drain.
4. The smart headlight system (1) for vehicles as claimed in claim 1, wherein the driver does not have to manually switch the lights on and off.
5. The smart headlight system (1) for vehicles as claimed in claim 1, wherein the delay mechanism after ignition shutdown prevents sudden loss of illumination when exiting the vehicle at night.

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