WO2018176944A1 - 一种基于不可见光判定行车环境的双色温车灯及判定方法 - Google Patents

一种基于不可见光判定行车环境的双色温车灯及判定方法 Download PDF

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Publication number
WO2018176944A1
WO2018176944A1 PCT/CN2017/118854 CN2017118854W WO2018176944A1 WO 2018176944 A1 WO2018176944 A1 WO 2018176944A1 CN 2017118854 W CN2017118854 W CN 2017118854W WO 2018176944 A1 WO2018176944 A1 WO 2018176944A1
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Prior art keywords
light
lamp
invisible light
color temperature
invisible
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PCT/CN2017/118854
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English (en)
French (fr)
Inventor
童建华
林育成
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东莞市莱曼光电科技有限公司
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Publication of WO2018176944A1 publication Critical patent/WO2018176944A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/125—Coloured light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/18—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors using comparison with a reference electric value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/28—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source
    • G01J1/30—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors
    • G01J1/32—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using variation of intensity or distance of source using electric radiation detectors adapted for automatic variation of the measured or reference value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/312—Adverse weather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2900/00—Features of lamps not covered by other groups in B60Q
    • B60Q2900/30—Lamps commanded by wireless transmissions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4242—Modulated light, e.g. for synchronizing source and detector circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/4446—Type of detector
    • G01J2001/4473—Phototransistor

Definitions

  • the invention relates to the field of automobile lighting, in particular to a vehicle lamp having a function of judging a current driving environment and realizing an automatic color temperature switching function, and a driving environment determining method based on invisible light.
  • the headlights are the main source of illumination when driving.
  • the difference of the headlights plays an important role in driving safety, especially in different usage scenarios and usage periods of wind, rain, night, fog, etc. Observation plays an extremely important role.
  • Color temperature and brightness are the two main performance indicators of the lamp. Among them, the brightness is limited by the work rate of the lamp body and the working mode. At present, the more popular LED-type lamp has been able to meet the driving performance well.
  • Need, and another main parameter color temperature will affect people's visual perception, which in turn affects people's observation of driving road conditions, while color temperature is also related to the environmental penetration of lighting, in the rain, fog, smog, snow, etc., low color temperature
  • the high color temperature can effectively improve the environmental penetration of light, thereby improving the safety of the vehicle in the above environment.
  • the high color temperature In the sunny environment, the high color temperature is more suitable for the road condition observation because it is closer to the sunlight.
  • the color temperature of the lights needs to be different.
  • the current car lights generally do not have a color temperature conversion function, and can not well meet the different use needs of different use scenarios in driving.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a two-color warm vehicle lamp and a determination method for realizing low-cost driving environment determination by using visible light invisible light of a specific wavelength.
  • the technical solution adopted by the present invention is: a two-color warm vehicle lamp that determines a driving environment based on invisible light, including a vehicle body, a lamp body in the form of an LED, and a lighting unit in the body of the lamp.
  • At least two color temperature light conversions at least one invisible light emitting source and at least one reflected light receiver are disposed on the front end surface of the lamp body, and a partition plate is disposed between the invisible light emitting source and the reflected light receiver;
  • the invisible light emitting source is embedded in the slot provided at the front end of the lamp body, and the front end does not expose the front end surface of the lamp body;
  • the lamp body is provided with a preamplifier circuit connected to the reflected light receiver, and is connected to the preamplifier circuit.
  • MCU and the wireless transceiver module connected to the MCU.
  • the invisible light emitting source is a light emitting diode, and the emitted light has a wavelength of less than 400 nm or higher than 760 nm.
  • the reflected light receiver is a phototransistor.
  • the vehicle body is provided with two sets of LED light-emitting beads of different color temperatures.
  • the headlight body is provided with an LED light-emitting lamp bead having a dual color temperature switching function.
  • the wireless transceiver module is an RF433 module.
  • Still another embodiment of the present invention includes: a lamp body, a control box, and a wireless radio frequency signal between the lamp body and the control box, and the light emitting unit in the lamp body can perform at least two color temperature light conversions.
  • the lamp body has an illumination control circuit and a wireless transceiver module;
  • the control box is provided with at least one invisible light emitting source and at least one reflected light receiver, and a partition plate is disposed between the invisible light emitting source and the reflected light receiver.
  • the control box is provided with a preamplifier circuit connected to the reflected light receiver, an MCU connected to the preamplifier circuit, and a wireless transceiver module connected to the MCU.
  • control box has a built-in battery.
  • control box is mounted on the front windshield of the car.
  • the invention also discloses a method for adjusting the color temperature of a vehicle lamp based on invisible light, which comprises the following steps:
  • Step 1 When the vehicle light is turned on, the invisible light emitting source emits an invisible light of the eye having a wavelength of less than 400 nm or higher than 760 nm, and the identification signal of 38 KHZ is loaded in the invisible light;
  • Step 2 When the vehicle light is turned on, the reflected light receiver receives and receives ambient light, and converts the received ambient light information into an electrical signal for signal amplification, with 5V as the maximum amplification value, and the amplified information is Processing, identifying a target light signal carrying a mark of 38 kHz, and calculating a voltage intensity value of the received target light signal;
  • Step 3 The processing chip compares the voltage intensity values obtained in the third step. When the voltage intensity value is lower than 1V, the signal value is ignored. When the voltage intensity value is 1-2V, it is determined as rain and fog weather, and The control lamp adjusts the working color temperature. When the voltage intensity value is higher than 2V, the signal value is ignored.
  • Step 4 The processing chip will obtain a control judgment through step three, and convert the control judgment into a control signal and send it to the vehicle lamp to control the working color temperature among the lamps.
  • processing chip in step 4 may be sent to each of the vehicle body by means of a wireless radio frequency signal, or may be sent to the lamp body by means of a wired connection.
  • the invisible light in the first step is ultraviolet light.
  • the working color temperature of the lamp is a low color temperature value.
  • the automatic detection and determination of the light driving environment is realized by using the invisible light of the naked eye, and the light transmittance of the front of the current vehicle is quickly judged by using the characteristic of poor transmittance of the invisible light, thereby judging whether or not it is It is necessary to cut the color temperature of the penetrating color to ensure safe driving.
  • the invention has simple structure and reasonable design, and has lower cost, better effect and higher accuracy than other determination schemes, and is favorable for promotion and use.
  • FIG. 1 is a schematic view showing the structure of a two-color warm light lamp of Embodiment 1 of the present invention.
  • Figure 2 is a schematic view showing the structure of Embodiment 2 of the present invention.
  • Figure 3 is a flow chart of the operation of the present invention.
  • the present invention includes a lamp body 1 .
  • the lamp body 1 is a lamp in the form of an LED.
  • the light-emitting unit 2 in the lamp body 1 can perform at least two color temperature light conversions; the front end of the lamp body 1 At least one invisible light emitting source 3 and at least one reflected light receiver 4 are disposed on the surface, and a partitioning plate 5 is disposed between the invisible light emitting source and the reflected light receiver; the invisible light emitting source 3 is embedded in the vehicle body 1 In the slot provided at the front end, the front end does not expose the front end surface of the lamp body 1; the lamp body 1 is provided with a preamplifier circuit connected to the reflected light receiver 4, an MCU connected to the preamplifier circuit, and connected to the MCU.
  • the invisible light source 3 is an ultraviolet light emitting diode emitting light having a wavelength of 400 nm.
  • the reflected light receiver 4 is a phototransistor.
  • the headlight body 1 is provided with an LED light-emitting bead having a dual color temperature switching function.
  • the wireless transceiver module is an RF433 module.
  • the phototransistor is used to receive and receive the obstruction of particles and water droplets in the air and the ambient light of the environment itself, and convert the obtained signal into an electronic signal and send it to the amplifying circuit, and the amplifying circuit amplifies the signal by a preset multiple.
  • the amplified electrical signal is sent to some pins of the MCU, and the MCU analyzes the electrical signal to determine the electrical signal of 38KHZ, and the voltage intensity value of the signal value is recorded, and the voltage intensity value is compared according to the voltage intensity value.
  • the working color temperature of the light-emitting unit in the lamp body is controlled.
  • the RF433 module is used to wirelessly control the lamp with another R433 module and the dual-color temperature conversion function to realize the synchronization of the double lamp of the automobile. Color temperature switching.
  • the present invention includes a lamp body 6 and a control box 7.
  • the lamp body 6 and the control box 7 are exchanged by radio frequency signals, and the light unit in the lamp body 6 can perform at least two color temperature light.
  • the light source control unit 6 is provided with an illumination control circuit and a wireless transceiver module;
  • the control box 7 is provided with at least one invisible light emitting source and at least one reflected light receiver, and the invisible light emitting source and the reflected light receiver are disposed between An isolation board;
  • the control box 7 is provided with a preamplifier circuit connected to the reflected light receiver, an MCU connected to the preamplifier circuit, and a wireless transceiver module connected to the MCU.
  • the invisible light emitting source in the control box 7 is used to emit ultraviolet light of 350 nm, and the obtained signal is converted into an electronic signal and sent to an amplifying circuit, and the amplifying circuit amplifies the signal by a preset multiple, and the amplified electric signal is sent to the MCU.
  • the MCU analyzes the electrical signal to determine the electrical signal of 38KHZ, and records the voltage intensity value of the signal value, compares the voltage intensity value, and transmits the contrast structure to the lamp body 6 through the RF433. In turn, synchronous color temperature conversion between the two lamp bodies 6 is realized.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

一种基于不可见光判定行车环境的双色温车灯，包括车灯本体(1)，车灯本体(1)为LED形式的车灯，车灯本体(1)中的发光单元(2)至少可进行两种色温光线的变换；车灯本体(1)的前端面上设有至少一个不可见光发射源(3)、至少一个反射光接收器(4)，不可见光发射源(3)与反射光接收器(4)间设置有一块隔离板(5)；不可见光发射源(3)埋嵌入在车灯本体(1)前端设置的槽中，前端不露出车灯本体(1)的前端表面；车灯本体(1)内设有与反射光接收器(4)相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。

Description

一种基于不可见光判定行车环境的双色温车灯及判定方法 技术领域
本发明涉及汽车照明领域，具体的说是一种具备判断当前行车环境进而实现色温自动切换功能的车灯及其基于不可见光的行车环境判定方法。
 背景技术
车灯是行车时的主要照明光源，车灯的好差对行车安全起着极为重要的作用，特别是风、雨、夜、雾等不同使用场景和使用时段中，车灯对行车时的路况观察起着极为重要的作用。色温、亮度是车灯的主要两个性能指标，其中，亮度由灯体工作工率以及工作方式所限，目前较流行的LED式的车灯，在亮度上已能很好的满足行车使用的需要，而另一个主要参数色温会影响人的视觉感知，进而影响人对行车路况的观察，同时色温还关乎着照明光线的环境穿透性，在雨、雾、霾、雪等，低色温较高色温可有效提高光线的环境穿透性，进而提高在上述环境下行车的安全性，而在晴天环境下，高色温由于更为接近日光，有利于进行路况观察，综合所述即为在不同的使用环境下，对车灯的色温需要也不同。但，目前的车灯一般不具备有色温变换功能，不能很好的满足行车中不同使用场景的不同使用需要。
 技术问题
虽然有少部分车灯装置具备有色温切换功能，但仅能实现手动的切换，且在操作上存在一定的不便，在行车过程中手动切换灯车色温还可能千万驾驶者分神，存在一定的安全隐患。
 技术解决方案
本发明的目的在于克服现有技术所存在的不足，提供一种利用特定波长的肉眼不可见光，实现低成本行车环境判断的双色温车灯及判定方法。
为实现上述目的，本发明所采用的技术方案是：一种基于不可见光判定行车环境的双色温车灯，包括车灯本体，车灯本体为LED形式的车灯，车灯本体中的发光单元至少可进行两种色温光线的变换；车灯本体的前端面上上设有至少一个不可见光发射源、至少一个反射光接收器，不可见光发射源与反射光接收器间设置有一块隔离板；不可见光发射源埋嵌入在车灯本体前端设置的槽中，前端不露出车灯本体的前端表面；车灯本体内设有与反射光接收器相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。
进一步的说，不可见光发射源为发光二极管，发出的光线波长低于400nm或高于760nm。
进一步的说，反射光接收器为光敏三极管。
进一步的说，车灯本体上设置有两组不同色温的LED发光灯珠。
进一步的说，车灯本体上设置有一颗具备有双色温切换功能的LED发光灯珠。
进一步的说，无线收发模组为RF433模块。
本发明还有另一种实施方式，其包括：车灯本体、控制盒，车灯本体与控制盒间通过无线射频信号进行交互, 车灯本体中的发光单元至少可进行两种色温光线的变换，车灯本体内设有发光控制电路以及无线收发模组；控制盒上设有至少一个不可见光发射源、至少一个反射光接收器，不可见光发射源与反射光接收器间设置有一块隔离板；控制盒内设有与反射光接收器相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。
进一步的说，控制盒内置有电池。
进一步的说，控制盒安装在汽车前挡风玻璃上。
本发明还公开了一种基于不可见光调节车灯色温的方法，其包括以下步骤：
步骤一：在车灯被开启处于工作状态时，不可见光发射源发射出光线波长低于400nm或高于760nm的眼肉不可见光，在不可见光中载入38KHZ的标识信号；
步骤二：在车灯被开启处于工作状态时，反射光接收器接收接收环境光线，并将接收的环境光线信息转换为电信号进行信号放大，以5V作为最大放大值，被放大后的信息经处理，识别出载有38KHZ的标识的目标光线信号，计算出所接收的该目标光线信号的电压强度值；
步骤三：处理芯片对经步骤三中得到的电压强度值进行对比，当电压强度值低于1V时，忽略该信号值 ，当电压强度值为1-2V时，判断为雨、雾天气，并控制车灯调整工作色温，当电压强度值 高于2V时，忽略该信号值。
步骤四：处理芯片将通过步骤三得到控制判断，并将控制判断转为控制信号发送给车灯，控制各车灯当中的工作色温。
进一步的的说，步骤四中的处理芯片可以是通过无线射频信号方式发送给各车灯本体，也可以是通过有线连接的方式发送给车灯本体。
进一步的说，作为一种优选，步骤一中的不可见光为紫外线。
进一步的说，步骤三中，判断为雨雾天气时，车灯工作色温为低色温值。
本发明工作时，利用肉眼不可见光实现对光前行车环境的自动侦测判定，利用不可见光的穿透性差的特点，可对当前车灯前方的透光性进行一个快速判断，进而判断其是否需要切色穿透性强的色温，以保证行车安全。
 有益效果
本发明的结构简单，设计合理，相较于其它判定方案，使用的成本低，效果好，判定的准确性高，有利于推广和使用。
 附图说明
图1是本发明中实施例1的双色温车灯的结构示意图。
图2是本发明中实施例2的结构示意图。
图3是本发明的工作流程图。
 本发明的实施方式
为方便对本发明作进一步的理解，现结合附图举出实施例，对本发明作进一步的说明。
实施例1：
如图1所示，本发明包括车灯本体1，车灯本体1为LED形式的车灯，车灯本体1中的发光单元2至少可进行两种色温光线的变换；车灯本体1的前端面上上设有至少一个不可见光发射源3、至少一个反射光接收器4，不可见光发射源与反射光接收器间设置有一块隔离板5；不可见光发射源3埋嵌入在车灯本体1前端设置的槽中，前端不露出车灯本体1的前端表面；车灯本体1内设有与反射光接收器4相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。不可见光发射源3为紫外线发光二极管，发出的光线波长为400nm。反射光接收器4为光敏三极管。车灯本体1上设置有一颗具备有双色温切换功能的LED发光灯珠。无线收发模组为RF433模块。
工作时，利用光敏三极管接收接收因空气中的颗粒和水珠的阻碍以及环境本身的环境光线，并将所得到的信号转换成电子信号发送给放大电路，放大电路将信号进行预设倍数放大，放大后的电信号发送给MCU中部分引脚 ，MCU通过对电信号进行分析，判断出38KHZ的电信号，将记录下该信号值的电压强度值，根据该电压强度值进行对比，通过对比结果对车灯本体内的发光单元的工作色温进行控制，同时，利用RF433模块对另一内置有R433模块的并具备双色温变换功能的车灯进行工作状态的无线遥控，实现汽车双车灯的同步色温切换。
实施例2：
如图2所示，本发明包括车灯本体6、控制盒7，车灯本体6与控制盒7间通过无线射频信号进行交互, 车灯本体6中的发光单元至少可进行两种色温光线的变换，车灯本体6内设有发光控制电路以及无线收发模组；控制盒7上设有至少一个不可见光发射源、至少一个反射光接收器，不可见光发射源与反射光接收器间设置有一块隔离板；控制盒7内设有与反射光接收器相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。
工作时，利用控制盒7内的不可见光发射源发射350nm的紫外线，将所得到的信号转换成电子信号发送给放大电路，放大电路将信号进行预设倍数放大，放大后的电信号发送给MCU中部分引脚 ，MCU通过对电信号进行分析，判断出38KHZ的电信号，将记录下该信号值的电压强度值，根据该电压强度值进行对比，将对比结构通过RF433发送给车灯本体6，进而实现两车灯本体6间的同步色温变换。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或修饰为等同变化的等效实施例，但是凡未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种基于不可见光判定行车环境的双色温车灯，其特征在于：包括车灯本体，车灯本体为LED形式的车灯，车灯本体中的发光单元至少可进行两种色温光线的变换；车灯本体的前端面上上设有至少一个不可见光发射源、至少一个反射光接收器，不可见光发射源与反射光接收器间设置有一块隔离板；不可见光发射源埋嵌入在车灯本体前端设置的槽中，前端不露出车灯本体的前端表面；车灯本体内设有与反射光接收器相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。
  2. 一种基于不可见光判定行车环境的双色温车灯，其特征在于：其包括：车灯本体、控制盒，车灯本体与控制盒间通过无线射频信号进行交互, 车灯本体中的发光单元至少可进行两种色温光线的变换，车灯本体内设有发光控制电路以及无线收发模组；控制盒上设有至少一个不可见光发射源、至少一个反射光接收器，不可见光发射源与反射光接收器间设置有一块隔离板；控制盒内设有与反射光接收器相连的前置放大电路、与前置放大电路相连的MCU，以及与MCU相连的无线收发模组。
  3. 一种基于不可见光调节车灯色温的方法，其特征在于：包括以下步骤：步骤一：在车灯被开启处于工作状态时，不可见光发射源发射出光线波长低于400nm或高于760nm的眼肉不可见光，在不可见光中载入38KHZ的标识信号；步骤二：在车灯被开启处于工作状态时，反射光接收器接收接收环境光线，并将接收的环境光线信息转换为电信号进行信号放大，以5V作为最大放大值，被放大后的信息经处理，识别出载有38KHZ的标识的目标光线信号，计算出所接收的该目标光线信号的电压强度值；步骤三：处理芯片对经步骤三中得到的电压强度值进行对比，当电压强度值低于1V时，忽略该信号值 ，当电压强度值为1-2V时，判断为雨、雾天气，并控制车灯调整工作色温，当电压强度值 高于2V时，忽略该信号值；步骤四：处理芯片将通过步骤三得到控制判断，并将控制判断转为控制信号发送给车灯，控制各车灯当中的工作色温。
  4. 如权利要求1中所述的一种基于不可见光判定行车环境的双色温车灯，其特征在于：不可见光发射源为发光二极管，发出的光线波长低于400nm或高于760nm。
  5. 如权利要求1中所述的一种基于不可见光判定行车环境的双色温车灯，其特征在于：反射光接收器为光敏三极管。
  6. 如权利要求1中所述的一种基于不可见光判定行车环境的双色温车灯，其特征在于：车灯本体上设置有两组不同色温的LED发光灯珠或车灯本体上设置有一颗具备有双色温切换功能的LED发光灯珠。
  7. 如权利要求1中所述的一种基于不可见光判定行车环境的双色温车灯，其特征在于：无线收发模组为RF433模块。
  8. 如权利要求2中所述的一种基于不可见光判定行车环境的双色温车灯，其特征在于：控制盒安装在汽车前挡风玻璃上。
  9. 如权利要求3中所述的一种基于不可见光调节车灯色温的方法，其特征在于：步骤四中的处理芯片可以是通过无线射频信号方式发送给各车灯本体，也可以是通过有线连接的方式发送给车灯本体。
  10. 如权利要求3中所述的一种基于不可见光调节车灯色温的方法，其特征在于：步骤一中的不可见光为紫外线。
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