CN203832335U - Three-primary-color LED car light control system - Google Patents
Three-primary-color LED car light control system Download PDFInfo
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- CN203832335U CN203832335U CN201420248919.8U CN201420248919U CN203832335U CN 203832335 U CN203832335 U CN 203832335U CN 201420248919 U CN201420248919 U CN 201420248919U CN 203832335 U CN203832335 U CN 203832335U
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Abstract
The utility model discloses a three-primary-color LED car light control system. The three-primary-color LED car light control system comprises a central controller, an LIN/CAN gateway, a car light controller and car lights, wherein a color diagram is stored in the central controller, the LIN/CAN gateway is connected with the central controller through a CAN bus, the car light controller receives output signals of the LIN/CAN gateway through an LIN bus, matches the three primary colors of red, green and blue and controls the on-off state of a high-beam light, a dipped headlight and a fog light and switching of the high-beam light and the dipped headlight, and the car lights display the color matched through the car light controller. The three-primary-color LED car light control system is not limited by the types of the car lights, a tail light can achieve different functions through the same assembly, the actual control thought of a driver can be imitated, the control effect is made to approximate the actual operation to the maximum extent, interference from various kinds of stray light can be eliminated, the misjudgment rate is low, the anti-interference capacity is high, and the three-primary-color LED car light control system is widely applicable to various cars.
Description
Technical field
The utility model belongs to LED lamp control field, specifically relates to a kind of three-primary color LED automotive lamp control system.
Background technology
LED light source is long light source of a kind of energy-conservation, efficient, life-span, used more and more widely now, current LED light source is on the market solid color mostly, its glow color is comparatively dull not to be changed, general only as simple illumination or indication use, and due to photochromic constant, also give in use the machine-made sensation of people, there is no new meaning, can not bring better result of use to people, simultaneously owing to being subject to various car lights to count quantitative limitation, restricting developer vehicle appearance is designed to diversified needs.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of three-primary color LED automotive lamp control system is provided, and this system is not used by the restriction of car, and taillight can adopt same assembly to realize difference in functionality; And can be able to imitate driver's working control thinking, make to control effect and approach to greatest extent practical operation, can get rid of the interference of various parasitic lights simultaneously, False Rate is low, and strong interference immunity is widely used in various vehicles.
To achieve these goals, the utility model is achieved through the following technical solutions:
A three-primary color LED automotive lamp control system, comprises central controller, and central controller has chromaticity diagram; LIN/CAN gateway, is connected with described central controller by CAN bus; Lighting Controller, receives the output signal of LIN/CAN gateway by LIN bus, the good and long-and-short distant light switching of long-and-short distant light, the fog lamp opening and closing of car light is matched colors, controlled to red-green-blue; Car light, shows the color after being matched colors by Lighting Controller; Described Lighting Controller, comprise illumination and rainfall detecting sensing device, modulate circuit, MCU controller, switch, LED driver module and red-green-blue LED lamp, described illumination and rainfall detecting sensing device are that the external environment light detecting, the variation of rainfall and the state of running car are converted into voltage signal the signal receiving; Described modulate circuit, is that the voltage signal receiving is mated with prior ready-portioned class, the residing environment of judgement automobile; Described MCU controller receives output signal and the receiving conditioning circuit signal of LIN/CAN gateway by LIN bus, for regulate the pwm signal take up space of red-green-blue than and drive car lamp control switch complete car light unlatching, close and distance-light converts; Switch, for receiving or disconnect the pwm signal of MCU controller output; LED driver module, for the space ratio shared according to the pwm signal of red-green-blue, drives red-green-blue LED lamp; Between described MCU controller and LED driver module, be provided with driving detection module, when being short-circuited or opening circuit for detection of car light, according to the data judgement automatic detection vehicle lamp failure feeding back.If there is situation about opening circuit, the resistance of left side lamp increases, and electric current reduces, and feedback current also reduces, and feedback resistance RIS ground is as pull down resistor, and feedback voltage reduces, and the voltage of port PTAO reduces; Situation if there is short circuit is on the contrary, and feedback current increases, and port PTAO voltage also increases.If two, left side car light all opens circuit, IL is 0, and feedback voltage is 0; While having one to open circuit, IL is P/VOUT (P is 21 watts).If all short circuits of car light of two, left side, I } often large, feedback voltage is also very large; While having a short circuit, IL is also very large, and feedback voltage is also very large.When if two, left side car light is all normally worked, IL is that 2P/VOUT is 7.5 A (P is 21 watts).When two car lights of homonymy are normally worked, (working environment is 25 ℃) has certain error according to actual track situation, normal IL is 7.5 A, and feedback proportional (kILIS=IL:IIS) kILIS is normally 9700, and minimum is 8000, be up to 10800, end 1 ~ PTA0; GJ A/D, the analog quantity voltage gathering is 6.944V～9.375V, the feedback voltage analog quantity recording is changed into digital quantity (two scale notation) for 0110.11l1～1001.0110, hexadecimal system is 0x06.F1A9～0x09.6 and next data and the normal range of conversion is compared, if in normal range, MCU controller sends corresponding signal and makes car light low frequency flicker, otherwise high frequency flicker.(flicker frequency of normally working is 40 times/Min, and during fault, flicker frequency is 80 times/Min) reports to the police to chaufeur.For guaranteeing the satisfied requirement of car light power, to a BTS6143D chip controls for left side car light (forward and backward), BTS6143D chip is connected on MCU controller, right side car light is in like manner.
The above MCU controller is selected MC9S12DG128 chip.
The above switch is smart power switch, and chip is selected BTS6143D.
The above LED driver module model is MAX16831.
The above LED driver module is constant current source driving circuit.
The above illumination and rainfall detecting sensing device also comprise manual parameters load module, can manually input the variation of car light CF.
The utility model adds modulate circuit, and sensor senses ambient light line power, light real-time change situation and extraneous weather condition by external, be converted into voltage signal the signal sensing, as the input of neural network.By neural network according in advance to data measured ready-portioned class analyze classification, judge the residing environment of automobile (daytime, misty rain weather, the urban district at night, the countryside at night, night meeting, enter tunnel etc.), after the characteristic parameter with built-in contrasts, send light control command to switch.If the voltage that optical detector output detected is during higher than certain value, Single-chip Controlling switch is closed, and automobile becomes passing light; If the voltage of optical detector is during lower than certain value, automobile becomes country beam; If voltage is between between the two, switch keeps original state, and automobile lamp does not change, and so just realizes the full automatic control of front lamp of vehicle.
Wherein, PWM described in the utility model is the abbreviation of Pulse Width Modulation, and the Chinese meaning is pulse width modulation, be called for short, and be the gray scale regulative mode of LED the best.The easy understanding that PWM says is a little, controls exactly the time scale that LED opens and closes, and the time scale of opening and closing is divided into some grades, and LED will demonstrate the GTG of respective numbers.
PWM frequency: the above-mentioned time scale of mentioning PWM opening and closing LED realizes, too low but on-off times can not make, and will cheat eyes at least.Suggestion design is comparatively reasonable at 300-500Hz.
In three primary colours design application, normally, by regulating LED electric current to reach white balance and maximum expectation brightness, by controlling PWM, realize greyscale level.LED field gray level number has respectively several modes such as 7 looks, 8 grades, 16 grades, 32 grades, 64 grades, 128 grades, 256 grades, 512 grades.Also can be the different orders of magnitude, these quantity grades be to be mainly convenient to digital circuit data processing. such as leaveing no choice but to be divided into 100 grades, that is also fine.
The gray level product of three primary colours, it is the number of colors that the utility model product can reproduce, monochrome of the present utility model is 256 looks, and the number of colors that can reproduce is so red 256 (levels) * green 256 (levels) * indigo plant 256 (level)=16777216 (16KK kind color).
Compared with prior art, the beneficial effects of the utility model are: the utility model system is not subject to the restriction of car light function, and taillight can adopt same assembly to realize difference in functionality; And can be able to imitate driver's working control thinking, make to control effect and approach to greatest extent practical operation, can get rid of the interference of various parasitic lights simultaneously, False Rate is low, and strong interference immunity is widely used in various vehicles.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of the utility model three-primary color LED automotive lamp control system;
Fig. 2 is the utility model modulate circuit schematic diagram;
Fig. 3 is the utility model LED driver module circuit diagram.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to the scope that embodiment represents.
embodiment 1:
A three-primary color LED automotive lamp control system, comprises central controller, and central controller has chromaticity diagram; LIN/CAN gateway, is connected with described central controller by CAN bus; Lighting Controller, receives the output signal of LIN/CAN gateway by LIN bus, the good and long-and-short distant light switching of long-and-short distant light, the fog lamp opening and closing of car light is matched colors, controlled to red-green-blue; Car light, shows the color after being matched colors by Lighting Controller; Described Lighting Controller, comprise illumination and rainfall detecting sensing device, modulate circuit, MCU controller, switch, LED driver module and red-green-blue LED lamp, described illumination and rainfall detecting sensing device are that the external environment light detecting, the variation of rainfall and the state of running car are converted into voltage signal the signal receiving; Described modulate circuit, is that the voltage signal receiving is mated with prior ready-portioned class, the residing environment of judgement automobile; Described MCU controller receives output signal and the receiving conditioning circuit signal of LIN/CAN gateway by LIN bus, for regulate the pwm signal take up space of red-green-blue than and drive car lamp control switch complete car light unlatching, close and distance-light converts; Switch, for receiving or disconnect the pwm signal of MCU controller output; LED driver module, for the space ratio shared according to the pwm signal of red-green-blue, drives red-green-blue LED lamp; Between described MCU controller and LED driver module, be provided with driving detection module, when being short-circuited or opening circuit for detection of car light, according to the data judgement automatic detection vehicle lamp failure feeding back.The above MCU controller is selected MC9S12DG128 chip.Described switch is smart power switch, and chip is selected BTS6143D.Described LED driver module model is MAX16831.Described LED driver module is constant current source driving circuit.If there is situation about opening circuit, the resistance of left side lamp increases, and electric current reduces, and feedback current also reduces, and feedback resistance RIS ground is as pull down resistor, and feedback voltage reduces, and the voltage of port PTAO reduces; Situation if there is short circuit is on the contrary, and feedback current increases, and port PTAO voltage also increases.If two, left side car light all opens circuit, IL is 0, and feedback voltage is 0; While having one to open circuit, IL is P/VOUT (P is 21 watts).If all short circuits of car light of two, left side, I } often large, feedback voltage is also very large; While having a short circuit, IL is also very large, and feedback voltage is also very large.When if two, left side car light is all normally worked, IL is that 2P/VOUT is 7.5 A (P is 21 watts).When two car lights of homonymy are normally worked, (working environment is 25 ℃) has certain error according to actual track situation, normal IL is 7.5 A, and feedback proportional (kILIS=IL:IIS) kILIS is normally 9700, and minimum is 8000, be up to 10800, end 1 ~ PTA0; GJ A/D, the analog quantity voltage gathering is 6.944V～9.375V, the feedback voltage analog quantity recording is changed into digital quantity (two scale notation) for 0110.11l1～1001.0110, hexadecimal system is 0x06.F1A9～0x09.6 and next data and the normal range of conversion is compared, if in normal range, MCU controller sends corresponding signal and makes car light low frequency flicker, otherwise high frequency flicker.(flicker frequency of normally working is 40 times/Min, and during fault, flicker frequency is 80 times/Min) reports to the police to chaufeur.For guaranteeing the satisfied requirement of car light power, to a BTS6143D chip controls for left side car light (forward and backward), BTS6143D chip is connected on MCU controller, right side car light is in like manner.
When driving, if turn to, central controller exports yellow map, simultaneously incoming signal light, through the analysis of LIN/CAN gateway, be sent to MCU controller, by MCU controller to regulating the pwm signal take up space of red-green-blue than regulating, output pwm signal redness dutycycle 100% then, green dutycycle 100%, blue dutycycle 0, through switch, be sent to LED driver module, drive red green LED lamp, at this moment car light can show yellow light; The like, adjustment red-green-blue dutycycle, exports different pwm signals, can realize the adjusting of color.
The utility model adds modulate circuit, by external sensor senses ambient light line power, light, misty rain real-time change situation and extraneous weather condition, the signal sensing is converted into voltage signal, as the input of neural network.By neural network according in advance to data measured ready-portioned class analyze classification, judge the residing environment of automobile (daytime, misty rain weather, the urban district at night, the countryside at night, night meeting, enter tunnel etc.), after the characteristic parameter with built-in contrasts, send light control command to switch, thereby control the different brightness of car light.User can to day portable lighter color and brightness set, shape and the size that also can show according to individual demand equipment steering indicating light.If the voltage that optical detector output detected is during higher than certain value, Single-chip Controlling switch is closed, and automobile becomes passing light; If the voltage of optical detector is during lower than certain value, automobile becomes country beam; If voltage is between between the two, switch keeps original state, and automobile lamp does not change, and so just realizes the full automatic control of front lamp of vehicle.
These are only preferred embodiment of the present utility model; be not intended to limit protection domain of the present utility model; therefore, all any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (6)
1. a three-primary color LED automotive lamp control system, is characterized in that: comprise central controller, central controller has chromaticity diagram; LIN/CAN gateway, is connected with described central controller by CAN bus; Lighting Controller, receives the output signal of LIN/CAN gateway by LIN bus, the good and long-and-short distant light switching of long-and-short distant light, the fog lamp opening and closing of car light is matched colors, controlled to red-green-blue; Car light, shows the color after being matched colors by Lighting Controller; Described Lighting Controller, comprise illumination and rainfall detecting sensing device, modulate circuit, MCU controller, switch, LED driver module and red-green-blue LED lamp, described illumination and rainfall detecting sensing device are that the external environment light detecting, the variation of rainfall and the state of running car are converted into voltage signal the signal receiving; Described modulate circuit, is that the voltage signal receiving is mated with prior ready-portioned class, the residing environment of judgement automobile; Described MCU controller receives output signal and the receiving conditioning circuit signal of LIN/CAN gateway by LIN bus, for regulate the pwm signal take up space of red-green-blue than and drive car lamp control switch complete car light unlatching, close and distance-light converts; Switch, for receiving or disconnect the pwm signal of MCU controller output; LED driver module, for the space ratio shared according to the pwm signal of red-green-blue, drives red-green-blue LED lamp; Between described MCU controller and LED driver module, be provided with driving detection module, when being short-circuited or opening circuit for detection of car light, according to the data judgement automatic detection vehicle lamp failure feeding back.
2. three-primary color LED automotive lamp control system according to claim 1, is characterized in that: described MCU controller is selected MC9S12DG128 chip.
3. three-primary color LED automotive lamp control system according to claim 1, is characterized in that: described switch is smart power switch, and chip is selected BTS6143D.
4. three-primary color LED automotive lamp control system according to claim 1, is characterized in that: described LED driver module model is MAX16831.
5. three-primary color LED automotive lamp control system according to claim 4, is characterized in that: described LED driver module is constant current source driving circuit.
6. three-primary color LED automotive lamp control system according to claim 1, is characterized in that: described illumination and rainfall detecting sensing device also comprise manual parameters load module, can manually input the variation of car light CF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248919.8U CN203832335U (en) | 2014-05-15 | 2014-05-15 | Three-primary-color LED car light control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248919.8U CN203832335U (en) | 2014-05-15 | 2014-05-15 | Three-primary-color LED car light control system |
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| CN203832335U true CN203832335U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420248919.8U Withdrawn - After Issue CN203832335U (en) | 2014-05-15 | 2014-05-15 | Three-primary-color LED car light control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978925A (en) * | 2014-05-15 | 2014-08-13 | 柳州天运寰通科技有限公司 | Three-primary color LED (light emitting diode) vehicle lamp control system |
-
2014
- 2014-05-15 CN CN201420248919.8U patent/CN203832335U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978925A (en) * | 2014-05-15 | 2014-08-13 | 柳州天运寰通科技有限公司 | Three-primary color LED (light emitting diode) vehicle lamp control system |
| CN103978925B (en) * | 2014-05-15 | 2015-12-02 | 柳州天运寰通科技有限公司 | A kind of three-primary color LED automotive lamp control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |