CN106559934B - Control method, device, system and the rail vehicle of rail vehicle lighting system - Google Patents
Control method, device, system and the rail vehicle of rail vehicle lighting system Download PDFInfo
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- CN106559934B CN106559934B CN201611028247.XA CN201611028247A CN106559934B CN 106559934 B CN106559934 B CN 106559934B CN 201611028247 A CN201611028247 A CN 201611028247A CN 106559934 B CN106559934 B CN 106559934B
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- 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]
- H05B45/10—Controlling the intensity of the light
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of control method, device, system and the rail vehicles of rail vehicle lighting system.Wherein, this method includes：The total current of cool colour temperature LED and warm colour temperature LED are determined according to object brightness, wherein object brightness is determined according to the illuminance of rail vehicle local environment；The luminous ratio of cool colour temperature LED and warm colour temperature LED are determined according to target colour temperature, wherein target colour temperature is determined according to current time；According to total current and luminous ratio control cool colour temperature LED and the LED operations of warm colour temperature.The present invention solve rail vehicle in the prior art light source energy consumption is big and technical problem that comfort level is low.
Description
Technical field
The present invention relates to rail vehicle control fields, in particular to a kind of controlling party of rail vehicle lighting system
Method, device, system and rail vehicle.
Background technology
With the development of the society, energy saving, environmental protection has been the trend in the world.In lighting area, Lighting control
It plays an important role to this.Traditional Lighting control is to control illumination by switching plus switch at lighting loop.Again
Dimming function is then added in further person, by silicon-controlled or PWM technical controllings come the brightness of lamps and lanterns.
Although present newly-designed vehicle nearly all uses LED light source, the guest room illumination of rail vehicle still consumes
A big chunk energy；For this mobile environment of compartment, even if being also complete in sunny ground run
Cheng Kaiqi key lightings, it is controlled unless there are driver or crew member.And the illuminating effect of train passenger compartment is unsatisfactory, illumination
Brightness and the major opticals parameter such as colour temperature it is very crucial to illumination comfort level, different period, temperature, season people are to illumination
Demand would also vary from, so how further to reduce key lighting energy consumption after having used LED light source, and significantly improve
Illuminating effect by bus becomes a new project.
Problem big for the light source energy consumption of rail vehicle in the prior art and that comfort level is low not yet proposes effective at present
Solution.
Invention content
An embodiment of the present invention provides a kind of control method, device, system and the rail vehicle of rail vehicle lighting system,
The technical problem that light source energy consumption at least to solve rail vehicle in the prior art is big and comfort level is low.
One side according to the ... of the embodiment of the present invention provides a kind of control method of rail vehicle lighting system, track
Lights of vehicle system includes：Cool colour temperature LED and warm colour temperature LED, the above method include：Cool colour temperature LED is determined according to object brightness
With the total current of warm colour temperature LED, wherein object brightness is determined according to the illuminance of rail vehicle local environment；According to aim colour
Temperature determines the luminous ratio of cool colour temperature LED and warm colour temperature LED, wherein target colour temperature is determined according to current time；According to total current
Cool colour temperature LED and the LED operations of warm colour temperature are controlled with luminous ratio.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of rail vehicle lighting system, including：Cool colour temperature
The same anode of the anode of LED and warm colour temperature LED, the cool colour temperature LED and the warm colour temperature LED common connection and power supply, institute
The cathode for stating cool colour temperature LED and the warm colour temperature LED is separately connected the first cathode and the second cathode with the power supply；Control
Device is connected with the cool colour temperature LED and the warm colour temperature LED respectively, for according to object brightness determine the cool colour temperature LED and
The total current of the warm colour temperature LED determines the luminous ratio of the cool colour temperature LED and the warm colour temperature LED according to target colour temperature,
And the cool colour temperature LED and warm colour temperature LED is controlled according to the total current and the luminous ratio and is run, wherein is described
Object brightness determines that the target colour temperature is determined according to current time according to the illuminance of the rail vehicle local environment.
It is according to the ... of the embodiment of the present invention in another aspect, additionally provide a kind of control device of rail vehicle lighting system, wrap
It includes：First determining module, the total current for determining the cool colour temperature LED and the warm colour temperature LED according to object brightness,
In, the object brightness is determined according to the illuminance of the rail vehicle local environment；Second determining module, for according to target
Colour temperature determines the luminous ratio of the cool colour temperature LED and the warm colour temperature LED, wherein the target colour temperature is according to current time
It determines；Control module, for controlling the cool colour temperature LED and the warm colour temperature according to the total current and the luminous ratio
LED is run.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of rail vehicle, including appointing in above-described embodiment
One rail vehicle lighting system of meaning.
In embodiments of the present invention, it is controlled by the balance of regulating illumination intensity and adjusting colour temperature, reaches target light according to strong
The adjusting of degree and target colour temperature, colour temperature relies primarily on the luminous ratio of two kinds of LED of adjustment changes in temperature to realize, the adjusting of brightness is main
It is to be realized by adjusting the total current of two kinds of LED；Intensity requirement is shone to target light in order to make lighting system that can meet, again
It disclosure satisfy that the requirement to target colour temperature, the present invention determine object brightness, obtain the overall electric current of two kinds of LED first；It determines again
Target colour temperature determines the luminous ratio of two kinds of LED；Under the support of the two data, controller exports corresponding duty ratio letter
Number control LED lamp work.Said program can quickly carry out closed loop feedback adjusting in real time very much, reduce energy to greatest extent
Consumption and improve illuminating effect, solve rail vehicle in the prior art light source energy consumption is big and technical problem that comfort level is low.Into
And solve the problems, such as that the light source energy consumption of rail vehicle in the prior art is big and comfort level low technical.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the control method of rail vehicle lighting system according to the ... of the embodiment of the present invention；
Fig. 2 is that a kind of object brightness of illumination of compartment guest room according to the ... of the embodiment of the present invention and the relationship of ambient brightness are shown
It is intended to；
Fig. 3 is photochromic and colour temperature relation schematic diagram；
Fig. 4 is the relation schematic diagram of a kind of target colour temperature and time according to the ... of the embodiment of the present invention；
Fig. 5 is that a kind of partial target colour temperature optionally extracted from colour temperature proportioning database according to the present invention is corresponding
The schematic diagram of the duty ratio ratio of cool colour temperature LED and warm colour temperature LED；
The curve that the lighting system of rail vehicle is adjusted when Fig. 6 is a kind of ambient light enhancing according to the ... of the embodiment of the present invention
Figure；
Fig. 7 is the curve that the lighting system of rail vehicle when a kind of ambient light according to the ... of the embodiment of the present invention weakens is adjusted
Figure；
Fig. 8 is a kind of structural schematic diagram of rail vehicle lighting system according to the ... of the embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of cool colour temperature LED and warm colour temperature LED operation duty ratio according to the ... of the embodiment of the present invention；With
And
Figure 10 is a kind of structural schematic diagram of rail vehicle lighting system according to the ... of the embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the control method of rail vehicle lighting system is provided, is needed
Bright, step shown in the flowchart of the accompanying drawings can be held in the computer system of such as a group of computer-executable instructions
Row, although also, logical order is shown in flow charts, and it in some cases, can be with different from sequence herein
Execute shown or described step.
Fig. 1 is a kind of flow chart of the control method of rail vehicle lighting system according to the ... of the embodiment of the present invention, such as Fig. 1 institutes
Show, rail vehicle lighting system includes：Cool colour temperature LED and warm colour temperature LED, this method comprises the following steps：
Step S102 determines the total current of cool colour temperature LED and warm colour temperature LED according to object brightness, wherein object brightness root
It is determined according to the illuminance of rail vehicle local environment.
Specifically, since above-mentioned rail vehicle lighting system includes cool colour temperature LED and warm colour temperature LED, rail vehicle
The brightness of light determined together by cool colour temperature LED and warm colour temperature LED, since the factor of decision is to control the electricity for flowing through LED
Stream, therefore, after determining object brightness, can determine the total current of cool colour temperature LED and warm colour temperature LED according to object brightness.
Step S104 determines the luminous ratio of cool colour temperature LED and warm colour temperature LED according to target colour temperature, wherein target colour temperature
It is determined according to current time.
Specifically, the luminous ratio of above-mentioned cool colour temperature LED and warm colour temperature LED can be control cool colour temperature LED and warm colour temperature
The duty ratio ratio of LED, for the lighting system including cool colour temperature LED and warm colour temperature LED, the control needs of colour temperature pass through
The luminous ratio of cool colour temperature LED and warm colour temperature LED is adjusted to realize.
Due to an important parameter of colour temperature and illumination comfort level, it is thus determined that target colour temperature can also reach raising rail
The purpose of road car lighting comfort level.
Step S106, according to total current and luminous ratio control cool colour temperature LED and the LED operations of warm colour temperature.
Herein it should be noted that said program is controlled in the balance by regulating illumination intensity and adjusting colour temperature, reach
Target intensity of illumination and target colour temperature, the adjusting of colour temperature rely primarily on the luminous ratio of two kinds of LED of adjustment changes in temperature to realize, brightness
Adjusting mainly total current by adjusting two kinds of LED realize；Target light is shone in order to make lighting system that can meet
Intensity requirement, and disclosure satisfy that the requirement to target colour temperature, the present invention determine object brightness, obtain the totality of two kinds of LED first
Electric current；Target colour temperature is determined again, determines the luminous ratio of two kinds of LED；Under the support of the two data, controller the output phase is answered
Duty cycle signals control LED lamp work.Said program can quickly carry out closed loop feedback adjusting, maximum limit in real time very much
The reduction energy consumption of degree and improve illuminating effect, solve rail vehicle in the prior art light source energy consumption is big and skill that comfort level is low
Art problem.
Optionally, according to the above embodiments of the present application, according to total current and luminous ratio control cool colour temperature LED and warm colour temperature
LED is run, including：
Step S1061 determines the duty ratio ratio of luminous ratio corresponding cool colour temperature LED and warm colour temperature LED；According to duty
Than ratio respectively to cool colour temperature LED and warm colour temperature LED output pulse width modulated signals, and make cool colour temperature LED and warm colour temperature LED
Electric current summation reach total current.
In a kind of optional embodiment, the luminous ratio of cool colour temperature LED and warm colour temperature LED are duty ratio ratio,
It is equal with the current ratio of two kinds of LED, such as：Total current is I0, the electric current of cool colour temperature LED and warm colour temperature LED are respectively I1With
I2, the ratio that shines is 3:7, therefore the electric current of two kinds of LED can be calculated by solving following formula：
The relationship of electric current and duty ratio is I1=IMax1·PMW1, I2=IMax2·PMW2, wherein PMW1And PMW2Respectively
For the duty ratio of cool colour temperature LED and warm colour temperature LED, IMax1And IMax2The maximum electricity of respectively cool colour temperature LED and warm colour temperature LED
Stream.
Optionally, according to the above embodiments of the present application, object brightness is determined according to the illuminance of rail vehicle local environment
The step of include：
Step S1021 obtains the relation table of ambient light illumination and lamplight brightness, wherein relation table includes multiple illuminance
The corresponding lamplight brightness in section and multiple illuminance sections.
In above-mentioned steps, the illumination of a closed loop can be made up of photosensitive sensors, lighting controller, LED lamp
Control system is finally reached according to the luminous intensity that the power of ambient has come automatic adjusting illuminating lamp according to extraneous ring
The purpose of border light automatic adjustment guest room key lighting illumination.In a kind of optional embodiment, the target of the illumination of compartment guest room is bright
The relationship of degree and ambient brightness can be with as shown in Fig. 2, in conjunction with shown in Fig. 2, object brightness be reached by the lighting system of rail vehicle
The illuminance of the object brightness arrived, object brightness and environment is inversely proportional, in the case that the stronger object brightness of ambient light illumination compared with
Weak, one plays the role of energy-efficient, and in the case where ambient light illumination is weaker, object brightness is stronger, has reached preferable illumination effect
Fruit.
Step S1023, the illuminance of acquisition trajectory vehicle local environment.
Above-mentioned steps can be by ambient light sensor mobile phone external ambient light illumination, and sends data to rail vehicle
Compartment guest room lighting lamp controller.
Step S1025 searches the illuminance section belonging to the illuminance of rail vehicle local environment in relation table, and
Determine that the corresponding lamplight brightness in illuminance section is object brightness.
Still example shown in Fig. 2, Fig. 2 is combined to illustrate only the LED object brightnesses corresponding to component environment illuminance,
After collecting ambient light illumination, it will be able to determine the interval range residing for ambient light illumination, then can obtain object brightness.
Optionally, according to the above embodiments of the present application, target colour temperature is determined according to current time, including：
Step S1041 obtains the correspondence at moment and colour temperature.
Herein it should be noted that photochromic more blue, colour temperature is higher；Partially yellow then colour temperature is lower.In one day light it is photochromic also
It changes over time.Fig. 3 is photochromic and colour temperature relation schematic diagram, in conjunction with shown in Fig. 3,40 minutes photochromic more yellow, colour temperatures after sunrise
3000K.Afternoon, sunlight was snow-white, rose to 4800-5800K.Cloudy the meridian hour then about 6500K.It is photochromic partially red before sunset, colour temperature
It is down to 2200K again.Light source color temperature is different, and photochromic also different, colour temperature has steady atmosphere, warm feeling in 3300K or less.Color
Temperature is intermediate colour temperature in 3000-5000K, there is frank feeling.Colour temperature has cold feeling in 5000K or more.
Step S1043 determines target colour temperature according to current time and correspondence.
Fig. 4 is the relation schematic diagram of a kind of target colour temperature and time according to the ... of the embodiment of the present invention, and abscissa is the time, is indulged
Coordinate is corresponding colour temperature, and in conjunction with example shown in Fig. 4, colour temperature automatic control function is by controlling train floor light
LED light source colour temperature simulates natural light colour temperature changing rule.The variation of reference time changes the scene of train passenger compartment.People are made to arrange
In the environment of not seeing natural light on vehicle, people are made to generate similar daylight illumination according to the LED light source color temperature change of floor light
The feeling of environment.
Optionally, according to the above embodiments of the present application, the hair of cool colour temperature LED and warm colour temperature LED are determined according to target colour temperature
Light ratio, including：
Step S1045 obtains colour temperature and matches database, wherein colour temperature matches database and includes：The corresponding cool colour temperature of colour temperature
The duty ratio of LED and warm colour temperature LED.
In above-mentioned steps, LED light source realizes that the variation of colour temperature is to carry out crossed geometry using the LED of the double-colored temperature of changes in temperature,
It is realized with the cooperation of PWM light regulating technologies.Cold light and warm light are respectively adjusted respective brightness using being operated alone, using respective
Brightness carry out cooperation change lamps and lanterns Integral luminous colour temperature.
Specifically, above-mentioned colour temperature proportioning database preserves multiple colour temperature corresponding control cool colour temperature LED and warm colour temperature LED
Duty ratio ratio, Fig. 5 is according to the present invention a kind of optionally to match the partial target colour temperature extracted in database from colour temperature
The schematic diagram of the duty ratio ratio of corresponding cool colour temperature LED and warm colour temperature LED.
Step S1046 matches database according to preset colour temperature and determines the corresponding cool colour temperature LED of target colour temperature and warm colour temperature
The duty ratio ratio of LED determines that duty ratio ratio is the ratio that shines.
In a kind of optional embodiment, in conjunction with example shown in fig. 5, it can be found according to target colour temperature corresponding cold
The duty ratio ratio of colour temperature LED and warm colour temperature LED.
Optionally, according to the above embodiments of the present application, what duty ratio declined takes time-consuming more than what duty ratio rose.
In above-mentioned steps, reach the lamp for making rail vehicle by controlling the time that duty ratio rises and duty ratio declines
The fast bright slow dark technical purpose of photosystem.
The curve that the lighting system of rail vehicle is adjusted when Fig. 6 is a kind of ambient light enhancing according to the ... of the embodiment of the present invention
Figure, Fig. 7 are the curve graphs that the lighting system of rail vehicle when a kind of ambient light according to the ... of the embodiment of the present invention weakens is adjusted.In conjunction with
Fig. 6 and example shown in Fig. 7 can be seen that when ambient light enhances, and the luminous intensity of the lighting system of rail vehicle reduces, in ring
When border light weakens, the luminous intensity of the lighting system of rail vehicle increases, and the speed when luminous intensity raising of lighting system is more than
Speed when reduction, i.e., it is fast bright slow dark.
In a kind of optional embodiment, train enters very dark environment from very bright environment, and PWM will be from 5% to 100%
Variation, total take of system is 4.75 seconds, and train enters very bright environment from very dark environment, and PWM will become from 100% to 5%
Change, total take of system is 9.50 seconds, since system uses non-pole light regulating scheme, so from current PWM duty cycle to final
PWM duty cycle from secretly to it is bright≤4.75 seconds, from it is bright to it is dark≤9.50 seconds.Such as：Current duty cycle 30%, final comparison operation
As a result it is 70%, then needs altogether 2 seconds；Current duty cycle is 70%, and final comparison operation result is 30%, then needs altogether 4 seconds.
From the foregoing, it will be observed that above-mentioned steps are by proposing rapidly the fast bright slow dark control of rail vehicle when external environment is dimmed
For high lamplight brightness to provide enough illumination, when environment brightens, lamplight brightness is slowly dimmed, and passenger is made to adapt to, and further carries
The high comfort level of passenger.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of rail vehicle lighting system is provided, Fig. 8 is according to of the invention real
A kind of structural schematic diagram of rail vehicle lighting system of example is applied, in conjunction with shown in Fig. 8, which includes：
The common connection of anode of cool colour temperature LED and warm colour temperature LED, cool colour temperature LED and warm colour temperature LED and power supply it is same just
The cathode of pole, cool colour temperature LED and warm colour temperature LED is separately connected the first cathode and the second cathode with power supply.
Specifically, in conjunction with shown in Fig. 8, the anode of cool colour temperature LED and warm colour temperature LED are both connected to the port 1 of controller, cold
The cathode of colour temperature LED and the cathode of warm colour temperature LED are connected to port 2 and the port 3 of controller, wherein port 1 is for carrying
For 48V direct currents, port 2 is used to provide pwm signal for current controller DC1, and port 3 for current controller DC2 for providing
Pwm signal.
Controller is connected with cool colour temperature LED and warm colour temperature LED respectively, for according to object brightness determine cool colour temperature LED and
The total current of warm colour temperature LED determines the luminous ratio of cool colour temperature LED and warm colour temperature LED according to target colour temperature, and according to total current
Cool colour temperature LED and warm colour temperature LED operations are controlled with luminous ratio, wherein object brightness is according to the light of rail vehicle local environment
Illumination determines that target colour temperature is determined according to current time.
In a kind of optional embodiment, in conjunction with example shown in Fig. 8, power supply uses the DC48V safe voltages of standard, cold
Warm two kinds of colour temperature LED use common-anode, cathode to be controlled by two-way PWM, wherein and D1, D2, D3 and D4 are cool colour temperature LED,
D5, D6, D7 and D8 are the PWM controller of warm colour temperature LED, DC1 cool colour temperature LED in order to control, the control of DC2 warm colour temperature LED in order to control
Device processed carries out duty ratio adjustment by DC1 and DC2, cool colour temperature LED and the duty ratio of warm colour temperature LED is made to reach target colour temperature pair
The luminous ratio answered, and the total current for keeping common anode extreme reaches the corresponding target current of object brightness.
Optionally, according to the above embodiments of the present application, controller be additionally operable to determine the luminous corresponding cool colour temperature LED of ratio and
The duty ratio ratio of warm colour temperature LED, according to duty ratio ratio respectively to corresponding first cathode of cool colour temperature LED and warm colour temperature LED
Corresponding second cathode output pulse width modulated signal, and the electric current summation of the anode of cool colour temperature LED and warm colour temperature LED is made to reach
To total current.
In a kind of optional embodiment, the luminous ratio of cool colour temperature LED and warm colour temperature LED are duty ratio ratio,
It is equal with the current ratio of two kinds of LED, such as：Total current is I0, the electric current of cool colour temperature LED and warm colour temperature LED are respectively I1With
I2, the ratio that shines is 3:7, such as example shown in Fig. 9, therefore can be calculated two kinds of LED's by solving following formula
Electric current：
The relationship of electric current and duty ratio is I1=IMax1·PMW1, I2=IMax2·PMW2, wherein PMW1And PMW2Respectively
For the duty ratio of cool colour temperature LED and warm colour temperature LED, IMax1And IMax2The maximum electricity of respectively cool colour temperature LED and warm colour temperature LED
Stream.
Embodiment 3
According to embodiments of the present invention, a kind of embodiment of the control device of rail vehicle lighting system, Tu10Shi are provided
A kind of structural schematic diagram of rail vehicle lighting system according to the ... of the embodiment of the present invention, in conjunction with shown in Figure 10, rail vehicle light
System includes：Cool colour temperature LED and warm colour temperature LED, the device include：
First determining module 100, the total current for determining cool colour temperature LED and warm colour temperature LED according to object brightness,
In, object brightness is determined according to the illuminance of rail vehicle local environment.
Specifically, since above-mentioned rail vehicle lighting system includes cool colour temperature LED and warm colour temperature LED, rail vehicle
The brightness of light determined together by cool colour temperature LED and warm colour temperature LED, flow through LED's since the factor of decision amount is to control
Therefore electric current after determining object brightness, can determine total electricity of cool colour temperature LED and warm colour temperature LED according to object brightness
Stream.
Second determining module 102, the luminous ratio for determining cool colour temperature LED and warm colour temperature LED according to target colour temperature,
In, target colour temperature is determined according to current time.
Specifically, the luminous ratio of above-mentioned cool colour temperature LED and warm colour temperature LED can be control cool colour temperature LED and warm colour temperature
The duty ratio ratio of LED, for the lighting system including cool colour temperature LED and warm colour temperature LED, the control needs of colour temperature pass through
The luminous ratio of cool colour temperature LED and warm colour temperature LED is adjusted to realize.
Due to an important parameter of colour temperature and illumination comfort level, it is thus determined that target colour temperature can also reach raising rail
The purpose of road car lighting comfort level.
Control module 104, for according to total current and luminous ratio control cool colour temperature LED and the LED operations of warm colour temperature.
Herein it should be noted that said program is controlled in the balance by regulating illumination intensity and adjusting colour temperature, reach
Target intensity of illumination and target colour temperature, the adjusting of colour temperature rely primarily on the luminous ratio of two kinds of LED of adjustment changes in temperature to realize, brightness
Adjusting mainly total current by adjusting two kinds of LED realize；Target light is shone in order to make lighting system that can meet
Intensity requirement, and disclosure satisfy that the requirement to target colour temperature, the present invention determine object brightness, obtain the totality of two kinds of LED first
Electric current；Target colour temperature is determined again, determines the luminous ratio of two kinds of LED；Under the support of the two data, controller the output phase is answered
Duty cycle signals control LED lamp work.Said program can quickly carry out closed loop feedback adjusting, maximum limit in real time very much
The reduction energy consumption of degree and improve illuminating effect, solve rail vehicle in the prior art light source energy consumption is big and skill that comfort level is low
Art problem.
Embodiment 4
According to embodiments of the present invention, a kind of embodiment of rail vehicle is provided, which includes appointing in embodiment 2
It anticipates a kind of rail vehicle lighting system.
In a kind of optional embodiment, the lamp light control system of above-mentioned rail vehicle passes through regulating illumination intensity and adjusting
The balance of colour temperature controls, and reaches target intensity of illumination and target colour temperature, and the adjusting of colour temperature relies primarily on two kinds of LED's of adjustment changes in temperature
Luminous ratio realizes, the total current of the adjusting of brightness mainly by adjusting two kinds of LED is realized；In order to make lighting system i.e.
It disclosure satisfy that and intensity requirement is shone to target light, and disclosure satisfy that the requirement to target colour temperature, the present invention determine object brightness first,
Obtain the overall electric current of two kinds of LED；Target colour temperature is determined again, determines the luminous ratio of two kinds of LED；In the support of the two data
Under, controller exports corresponding duty cycle signals control LED lamp work.Said program can be closed quickly in real time very much
Ring feedback regulation reduces energy consumption and improves illuminating effect, solves the light source energy of rail vehicle in the prior art to greatest extent
The technical problem that consumption is big and comfort level is low.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of control method of rail vehicle lighting system, which is characterized in that the rail vehicle lighting system includes：Cool colour
Warm LED and warm colour temperature LED, wherein the control method of the rail vehicle lighting system includes：
The total current of the cool colour temperature LED and the warm colour temperature LED are determined according to object brightness, wherein the object brightness root
It is determined according to the illuminance of the rail vehicle local environment；
The luminous ratio of the cool colour temperature LED and the warm colour temperature LED are determined according to target colour temperature, wherein the target colour temperature
It is determined according to current time；
The cool colour temperature LED and warm colour temperature LED operations are controlled according to the total current and the luminous ratio；
The luminous ratio is to control the duty ratio ratio of cool colour temperature LED and warm colour temperature LED, and the duty ratio declines time-consuming big
It is taken in what the duty ratio rose.
2. according to the method described in claim 1, it is characterized in that, according to described in the total current and the luminous ratio control
Cool colour temperature LED and warm colour temperature LED operations, including：
Determine the duty ratio ratio of the luminous ratio corresponding cool colour temperature LED and the warm colour temperature LED；
According to the duty ratio ratio respectively to the cool colour temperature LED and the warm colour temperature LED output pulse width modulated signals,
And the cool colour temperature LED and the electric current summation of the warm colour temperature LED is made to reach the total current.
3. according to the method described in claim 2, it is characterized in that, the object brightness is according to the rail vehicle local environment
Illuminance determine step include：
Obtain the relation table of ambient light illumination and lamplight brightness, wherein the relation table includes multiple illuminance sections and described
The corresponding lamplight brightness in multiple illuminance sections；
Acquire the illuminance of the rail vehicle local environment；
The illuminance section belonging to the illuminance of the rail vehicle local environment is searched in the relation table, and determines institute
It is the object brightness to state the corresponding lamplight brightness in illuminance section.
4. according to the method described in claim 3, it is characterized in that, the target colour temperature is determined according to current time, including：
Obtain the correspondence at moment and colour temperature；
The target colour temperature is determined according to current time and the correspondence.
5. according to the method described in claim 4, it is characterized in that, determining the cool colour temperature LED and described according to target colour temperature
The luminous ratio of warm colour temperature LED, including：
It obtains colour temperature and matches database, wherein the colour temperature matches database and includes：The corresponding cool colour temperature LED of colour temperature and
The duty ratio of the warm colour temperature LED；
Database, which is matched, according to preset colour temperature determines the corresponding cool colour temperature LED of the target colour temperature and the warm colour temperature
The duty ratio ratio of LED determines that the duty ratio ratio is the luminous ratio.
6. a kind of rail vehicle lighting system, which is characterized in that including：
The common connection of the anode of cool colour temperature LED and warm colour temperature LED, the cool colour temperature LED and the warm colour temperature LED is same with power supply
The cathode of one anode, the cool colour temperature LED and the warm colour temperature LED are separately connected negative with the first cathode of the power supply and second
Pole；
Controller is connected with the cool colour temperature LED and the warm colour temperature LED respectively, described cold for being determined according to object brightness
The total current of colour temperature LED and the warm colour temperature LED determine the cool colour temperature LED's and warm colour temperature LED according to target colour temperature
The ratio of shining, and the cool colour temperature LED and warm colour temperature LED is controlled according to the total current and the luminous ratio and is run,
Wherein, the object brightness according to the illuminance of the rail vehicle local environment determine, the target colour temperature according to it is current when
It carves and determines；
Wherein, the luminous ratio is to control the duty ratio ratio of cool colour temperature LED and warm colour temperature LED, what the duty ratio declined
It takes and is taken more than what the duty ratio rose.
7. system according to claim 6, which is characterized in that
The controller is additionally operable to determine the duty of the luminous ratio corresponding the cool colour temperature LED and the warm colour temperature LED
Than ratio, according to the duty ratio ratio respectively to corresponding first cathode of the cool colour temperature LED and the warm colour temperature LED
Corresponding second cathode output pulse width modulated signal, and make the electricity of the anode of the cool colour temperature LED and warm colour temperature LED
Stream summation reaches the total current.
8. a kind of control device of rail vehicle lighting system, which is characterized in that the rail vehicle lighting system includes：Cool colour
Warm LED and warm colour temperature LED, wherein the control device of the rail vehicle lighting system includes：
First determining module, the total current for determining the cool colour temperature LED and the warm colour temperature LED according to object brightness,
In, the object brightness is determined according to the illuminance of the rail vehicle local environment；
Second determining module, the luminous ratio for determining the cool colour temperature LED and the warm colour temperature LED according to target colour temperature,
Wherein, the target colour temperature is determined according to current time；
Control module, for controlling the cool colour temperature LED and warm colour temperature LED according to the total current and the luminous ratio
Operation；
The luminous ratio is to control the duty ratio ratio of cool colour temperature LED and warm colour temperature LED, and the duty ratio declines time-consuming big
It is taken in what the duty ratio rose.
9. a kind of rail vehicle, which is characterized in that including the rail vehicle light system described in any one of claim 6 or 7
System.
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| CN106982505A (en) * | 2017-05-19 | 2017-07-25 | 北京同步科技有限公司 | The intelligent open loop debugging system and its adjustment method of light |
| CN108834250B (en) * | 2018-03-31 | 2020-11-03 | 利辛县力信电力照明科技有限公司 | LED lamp capable of adjusting color temperature according to time and region |
| CN109121248A (en) * | 2018-09-11 | 2019-01-01 | 蒋琳 | A kind of illuminating lamp for inside of automobile |
| CN110545602A (en) * | 2019-09-10 | 2019-12-06 | 中车株洲电力机车有限公司 | Color temperature adjusting method and system for rail transit vehicle lighting system |
| CN111856997A (en) * | 2020-07-09 | 2020-10-30 | 中车青岛四方机车车辆股份有限公司 | Intelligent control system of railway vehicle and railway vehicle |
| CN112188702A (en) * | 2020-09-30 | 2021-01-05 | 中车青岛四方机车车辆股份有限公司 | Control method, control device and control system for lighting equipment of railway vehicle |
| WO2023014323A1 (en) * | 2021-08-05 | 2023-02-09 | Sanel Sanayi̇ Elektroni̇ği̇ İmalat Ve Ti̇caret Anoni̇m Şi̇rketi̇ | Frequency adjustment system and method for in-vehicle lighting |
| CN113993253A (en) * | 2021-11-01 | 2022-01-28 | 北京轨道交通技术装备集团有限公司 | Control method and device for intelligent illumination of train |
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