CN112393885A - LED light-emitting system for automobile headlight and detection method of LED light-emitting system - Google Patents
LED light-emitting system for automobile headlight and detection method of LED light-emitting system Download PDFInfo
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- CN112393885A CN112393885A CN202011382854.2A CN202011382854A CN112393885A CN 112393885 A CN112393885 A CN 112393885A CN 202011382854 A CN202011382854 A CN 202011382854A CN 112393885 A CN112393885 A CN 112393885A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The application relates to a detection method of an LED light-emitting system for an automobile headlight, which comprises the steps of firstly, acquiring the brightness of the LED light in real time and generating luminous flux information; then, based on a preset luminous flux reference value, determining a difference value between the luminous flux information and the luminous flux reference value; and finally, when the difference value is a negative number, sending prompt information to the associated terminal. The brightness of the current LED light is judged by obtaining the luminous flux information of the LED lamp, and the difference value between the luminous flux information and the luminous flux reference value is calculated to judge whether the light emitted by the LED lamp reaches a preset value at the moment. If the difference value between the luminous flux information and the luminous flux reference value is a negative number, the luminous flux of the LED lamp is proved to be smaller than the reference value at the moment, the LED lamp has luminous decay, and the prompting information is sent to the associated terminal to prompt the user so that the user can timely master the detailed information of the light emission of the automobile headlamp and process the luminous decay condition of the LED lamp according to the condition.
Description
Technical Field
The application relates to the field of automobile lamps, in particular to an LED light-emitting system for an automobile headlight and a detection method of the system.
Background
Headlights are mounted on two sides of the front end of the automobile, and the headlights made of the LEDs have the advantages of being small in size, long in service life and capable of being widely applied to the headlights of the automobile. When the LED lamp is used as a light source of a headlamp of an automobile, a plurality of LED light emitting device arrays are usually used.
In view of the above-mentioned related technologies, the inventors believe that although the LED lamp has many advantages, the junction temperature generated by the PN junction of the LED itself rises, which aggravates the light attenuation of the LED, affects the light emitting efficiency, shortens the lifetime, and has a defect that a user can find that the LED lamp has the light attenuation only when the light of the LED lamp becomes dark more significantly.
Disclosure of Invention
In order to solve the problem that the light attenuation of an LED lamp cannot be found in time, the application provides an LED light-emitting system for an automobile headlight and a detection method of the system.
In a first aspect, the application provides a method for detecting an LED lighting system for an automotive headlight, which adopts the following technical scheme:
a detection method of an LED light-emitting system for an automobile headlight comprises the following steps:
acquiring the brightness of the LED lamp in real time and generating luminous flux information;
determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
and when the difference value is negative, sending prompt information to the associated terminal.
Through adopting above-mentioned technical scheme, the LED lamp is at work at every turn, and the PN junction of LED lamp all can produce heat, and the produced heat of PN junction can lead to the fact certain influence to other electron components in the LED lamp, and then makes the luminous flux of LED lamp receive the influence. The brightness of the current LED light is judged by obtaining the luminous flux information of the LED lamp, and the difference value between the luminous flux information and the luminous flux reference value is calculated to judge whether the light emitted by the LED lamp reaches a preset value at the moment. If the difference value between the luminous flux information and the luminous flux reference value is a negative number, the luminous flux of the LED lamp is proved to be smaller than the reference value at the moment, the LED lamp has luminous decay, a prompt message is sent to a related terminal to prompt a user, so that the user can timely master the detailed information of the light emission of the automobile headlamp, the luminous decay condition of the LED lamp is processed according to the condition, the current condition of the LED lamp is improved, and the LED lamp is kept in a better working state.
Preferably, the step of acquiring the brightness of the LED lamp in real time and generating brightness information includes:
obtaining the irradiation direction of the LED lamp to determine the main direction of the light beam of the LED lamp;
screening out interference light beams falling onto the LED lamp and having the direction different from the main direction of the light beams of the LED lamp according to the main direction of the light beams of the LED lamp;
and determining luminous flux information according to the light beam in the same direction as the main direction of the light beam of the LED lamp.
Through adopting above-mentioned technical scheme, when opening the LED lamp, the LED lamp is towards the place ahead transmission beam of car, most light beam is towards same direction transmission, when the LED lamp is opened, obtain the light beam main direction that the LED lamp sent, screen out the interference light beam that falls on the LED lamp different with LED lamp light beam main direction according to LED lamp light beam main direction, like the sunlight, other lights that shine on the LED lamp of this car, the direction that its light beam diverges is inconsistent with the light beam direction that this LED lamp sent, according to the difference of light beam direction, screen out the interference light beam different with LED lamp light beam main direction, obtain luminous flux information from this, reflect the bright intensity of current LED lamp through luminous flux information, and make the measure in time.
Preferably, the step of determining the luminous flux information based on the light beam having the same direction as the main direction of the light beam of the LED lamp includes:
acquiring luminous flux at preset distance intervals along the main direction of the light beam of the LED lamp;
calculating a light flux difference between adjacent ones of the distance intervals;
and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference.
By adopting the technical scheme, the light flux information of the preset distance intervals acquired along the main direction of the light beam of the LED lamp is acquired to acquire the light flux of each distance interval section of the light beam of the LED lamp, the difference value of the light fluxes of the adjacent distance intervals is calculated, then the ratio between the acquired adjacent difference values is calculated, if the ratio of the former stage is larger than that of the latter stage, the attenuation of the light beam in the transmission process can be acquired, then the attenuation of the light beam is calculated according to the acquired difference value of the adjacent distance intervals, and then the attenuation of the light beam is converted into the light flux information.
Preferably, the step of screening out the interference light beams falling onto the LED lamp according to the main direction of the light beam of the LED lamp, the interference light beams being different from the main direction of the light beam of the LED lamp, includes:
determining the intensity of a main light beam of the LED lamp according to the light intensity of the light beam emitted by the LED lamp bead;
screening out interference light beams falling onto the reflector and having different light intensity from the main light beams of the LED lamp according to the light intensity of the main light beams of the LED lamp;
and determining luminous flux information according to the light beam with the same light intensity as the main light beam of the LED lamp.
By adopting the technical scheme, according to the superposition principle of light, monochromatic light emitted by different light sources is not easy to superpose, so that light intensity of light beams emitted by the LED lamp beads and intensity of other stray light falling onto the reflector are different, other light beams except the light beams emitted by the LED lamp beads are screened, influence of the stray light on luminous flux of the light emitted by the LED lamp beads is reduced, and the judgment accuracy is improved.
Preferably, after the step of acquiring the brightness of the LED lamp in real time and generating the luminous flux information, the method further includes:
establishing an electric quantity supplementing model based on the luminous flux information;
and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
By adopting the technical scheme, the dimming of the LED lamp can be caused by insufficient power supply, the light intensity of the LED lamp is reflected by the luminous flux information, the difference value between the light intensity and the preset reference value is calculated, the electric quantity required to be supplemented by the LED lamp in different light intensity is calculated, the one-to-one correspondence relationship is established, and an electric quantity supplementing model is established according to the settlement result, so that the required supplementing electric quantity information of the LED lamp can be directly obtained according to the size value of the input luminous flux information.
Preferably, the step of acquiring the brightness of the LED lamp in real time and generating the luminous flux information includes:
acquiring the current of the LED lamp in real time to determine the current voltage of the LED lamp;
determining a voltage difference value between the current voltage of the LED lamp and a power supply reference value;
and determining the supplementary voltage of the LED lamp according to the voltage difference value.
Through adopting above-mentioned technical scheme, the LED lamp is dark probably because the power supply leads to inadequately, through the current size of acquireing the LED lamp in real time, because of the resistance of LED lamp is certain, consequently can convert out the current voltage size of LED lamp through the electric current, carry out the difference calculation through the voltage size that will acquire and the power supply benchmark value of predetermineeing, obtain the voltage difference value of pressing size and predetermined power supply benchmark value, if the voltage difference value is the negative number, then need supply power to the LED lamp, so that the voltage of LED lamp keeps on the power supply benchmark value, the operating voltage of LED lamp is in normal operating voltage scope, the LED lamp has the illuminating effect of preferred.
In a second aspect, the present application provides an LED lighting system for a headlight of an automobile, which adopts the following technical solution:
the system comprises:
a luminous flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
a difference value calculation module: determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
the information triggering and sending module: and when the difference value is negative, sending prompt information to the associated terminal.
Through adopting above-mentioned technical scheme, the LED lamp is at work at every turn, and the PN junction of LED lamp all can produce heat, and the produced heat of PN junction can lead to the fact certain influence to other electron components in the LED lamp, and then makes the luminous flux of LED lamp receive the influence. The light flux obtaining module is used for judging the brightness of the current LED light by obtaining the light flux information of the LED lamp, and the difference value calculating module is used for calculating the difference value between the light flux information and the light flux reference value so as to judge whether the light emitted by the LED lamp reaches a preset value at the moment. If the difference value between the luminous flux information and the luminous flux reference value is a negative number, the luminous flux of the LED lamp is proved to be smaller than the reference value at the moment, the LED lamp has luminous decay, the information trigger sending module sends prompt information to the associated terminal to prompt the user, so that the user can master detailed information of the light emitting of the automobile headlamp in time, the luminous decay condition of the LED lamp is processed according to the condition, the current condition of the LED lamp is improved, and the LED lamp is kept in a better working state.
Preferably, the system further comprises:
electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on the luminous flux information; and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
By adopting the technical scheme, the dimming of the LED lamp can be caused by insufficient power supply, the light intensity of the LED lamp is reflected by the luminous flux information, the difference value between the light intensity and the preset reference value is calculated, the electric quantity required to be supplemented by the LED lamp in different light intensity is calculated, the one-to-one correspondence relationship is established, and an electric quantity supplementing model is established according to the settlement result, so that the required supplementing electric quantity information of the LED lamp can be directly obtained according to the size value of the input luminous flux information.
In a third aspect, the present application provides a computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for detecting an LED lighting system for a headlight according to any one of the above-mentioned second aspects when executing the computer program.
In a fourth aspect, the present application provides a computer readable storage medium storing a computer program capable of being loaded by a processor and executing the third aspect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the brightness of the current LED light is judged by obtaining the luminous flux information of the LED lamp, and the difference value between the luminous flux information and the luminous flux reference value is calculated to judge whether the light emitted by the LED lamp reaches a preset value at the moment. If the difference value between the luminous flux information and the luminous flux reference value is a negative number, the luminous flux of the LED lamp is proved to be smaller than the reference value at the moment, the LED lamp has luminous decay, a prompt message is sent to a related terminal to prompt a user, so that the user can timely master the detailed information of the light emission of the automobile headlamp, the luminous decay condition of the LED lamp is processed according to the condition, the current condition of the LED lamp is improved, and the LED lamp is kept in a better working state;
2. the intensity of light beams emitted by the LED lamp beads is measured to be different from the intensity of other stray light falling on the reflector, so that other light beams except the light beams emitted by the LED lamp beads are screened, the influence of the stray light on the luminous flux of the light emitted by the LED lamp beads is reduced, and the judgment accuracy is improved;
3. and calculating the difference value between the light intensity and a preset reference value, calculating the electric quantity required to be supplemented by the LED lamp when the light intensity is different, establishing a one-to-one correspondence relationship, and establishing an electric quantity supplementing model according to a settlement result so as to directly obtain the required supplementing electric quantity information of the LED lamp according to the magnitude value of the input light flux information.
Drawings
FIG. 1 is a flow chart illustrating a method for detecting an LED lighting system for a headlight of an automobile according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of an LED lighting system for a headlight of an automobile according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a computer device according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a detection method of an LED light-emitting system for an automobile headlight. Referring to fig. 1, the method for detecting the LED lighting system for the automotive headlight includes the steps of:
s100: and acquiring the brightness of the LED lamp in real time and generating luminous flux information.
In the present embodiment, the luminous flux information refers to the amount of light emitted in a unit time, referred to as the luminous flux of the LED light source, which is a quantity describing the total amount of light emitted by the light source with respect to the light source.
Specifically, an illumination sensor is arranged in the LED lamp and used for detecting the brightness intensity emitted by the LED lamp, and then the luminous flux emitted by the LED lamp in unit time is calculated according to a calculation formula by using the detected brightness intensity value.
After S100, further comprising:
s200: determining a difference between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value.
In the present embodiment, the reference value of the luminous flux refers to the luminous flux of the LED lamp under the standard setting.
Specifically, a light flux reference value is obtained through an external recording mode, a difference value between the light flux information obtained in real time and the light flux reference value is calculated, when the obtained difference value is greater than or equal to 0, it is proved that the light flux information obtained in real time at the moment is greater than the light flux reference value, and if the obtained difference value is less than 0, it is proved that the light flux information obtained in real time at the moment is lower than the light flux reference value. When the light flux information and the light flux reference value are continuously smaller than 0 or mostly smaller than 0, the obtained light flux information is judged to be lower than the light flux reference value, the LED lamp is subjected to light attenuation (light dimming), and the light attenuation of the LED is the absolute value of the difference value between the light flux information and the light flux reference value divided by the light flux reference value.
After S200, further comprising:
s300: and when the difference value is negative, sending prompt information to the associated terminal.
In this embodiment, the related terminal refers to an intelligent terminal connected to the LED lamp through a signal, for example, a mobile phone, a tablet, a display terminal of an automobile control system, a smart watch, and the like. The prompt information is a color signal for turning on a display lamp or a prompt sound for sounding on a display terminal of the automobile control system.
Specifically, when the luminous flux information is smaller than the luminous flux reference value, that is, the difference value is a negative number, a prompt signal is sent to a display terminal of the automobile control system to remind a user that the brightness of the LED lamp of the automobile is darker than a normal state, meanwhile, an attenuation value of the brightness of the LED lamp can be obtained by calculating the difference value between the luminous flux information and the luminous flux reference value, and the attenuation value is displayed on the display terminal of the automobile control system, so that the user can grasp the condition of the automobile headlamp in time, and the user can process in time according to the grasped condition.
Supposing that the obtained luminous flux of the current LED lamp is 1300lm, the reference value of the luminous flux is 2000lm, the difference value between the luminous flux information and the reference value of the luminous flux is-700, and the difference value is smaller than 0, a prompt signal is sent to a display terminal of the automobile control system, and the display terminal of the automobile control system lights up a prompt signal lamp.
Furthermore, the LED lamps on the two sides of the front end of the automobile respectively carry different identification codes, the system identifies the two LED lamps carrying different identification codes and stores the acquired data in different storage libraries, so that a user can process the two LED lamps in a targeted manner according to specific conditions.
In an embodiment, after S100, the method further includes:
s101: establishing an electric quantity supplementing model based on the luminous flux information; and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
In this embodiment, the electric quantity supplement model refers to a set of electric quantities of various values that are preset and stored in the database and need to be supplemented corresponding to the current electric quantity of the LED lamp. The information of the supplement electric quantity refers to how much electric energy needs to be supplemented to the LED lamp, so that the current electric energy of the LED lamp is in a standard electric energy state.
Specifically, the luminous flux information is acquired, the luminance of the LED lamp is calculated by using the calculation formula 1nit (luminance) = cd/m2, cd = Lm/Ω (Ω is a solid angle, and the unit is sphericity sr), the current electric quantity of the LED lamp is converted by using the acquired luminance, and the electric quantity difference value between the current electric quantity and the standard electric quantity is calculated, so that the electric quantity difference value is the electric quantity required to be supplemented by the LED lamp. For example, if the current power of the LED lamp is 25W, the standard value is 35W, and the difference between the two is-10, 10W of power needs to be added to the LED lamp, so that the LED lamp is kept in the preset illumination range.
Furthermore, the current of the LED lamp can be obtained in real time to determine the current voltage of the LED lamp by detecting the power consumption condition of the LED lamp; determining a voltage difference value between the current voltage of the LED lamp and a power supply reference value; and determining the supplementary voltage of the LED lamp according to the voltage difference value.
In this embodiment, the current refers to a current of a power supply access terminal of the LED lamp; the supplementary voltage refers to external voltage which needs to be additionally transmitted to the LED lamp when the voltage difference value is negative.
In particular, when the LED lamp is dimmed, it may be caused by insufficient supply voltage of the LED lamp. The voltage sensor is used for detecting the voltage of the LED lamp, the voltage sensor is used for detecting the difference value between the voltage of the LED lamp and the power supply reference value, so that the voltage value required to be supplemented is obtained, and then the standby power supply (providing external voltage for the LED lamp) is controlled to supply power to the LED lamp, so that the brightness emitted by the LED lamp is in a normal value.
In one embodiment, the method further comprises:
s102: obtaining the irradiation direction of the LED lamp to determine the main direction of the light beam of the LED lamp; screening out interference light beams falling onto the LED lamp and having the direction different from the main direction of the light beams of the LED lamp according to the main direction of the light beams of the LED lamp; and determining luminous flux information according to the light beam in the same direction as the main direction of the light beam of the LED lamp.
In this embodiment, the main direction of the light beam of the LED lamp refers to a direction in which the LED lamp irradiates (a direction in which light diverges) in a state in which the LED lamp is turned on; the interference light beam different from the main direction of the light beam of the LED lamp means a light beam emitted from an external lamp toward the LED lamp when the vehicle is in a bright environment.
Specifically, the direction of the light beam emitted by the LED lamp can be acquired by measuring the direction of the installation of the LED lamp bead by using the measurer, and then the main direction of the light beam of the LED lamp can be acquired (the main direction of the light beam of the LED lamp can also be acquired by detecting the direction of the fluctuation of the light particles or the main direction of the light beam of the LED lamp can be acquired by the light following auxiliary device) and the acquired main direction of the light beam of the LED lamp can be stored. Considering that the light generated from the outside can influence the judgment of the luminous flux of the LED lamp, the received light different from the main direction of the light beam of the LED lamp is eliminated. Then, the luminous flux can be obtained by calculating the light intensity of the LED lamp light beam reaching, leaving or passing through the curved surface of the LED lamp housing per unit time.
The light beam that LED lamp pearl sent is the place ahead towards the car, be from inside to outside transmission, head-on has opened a car, the lamp on the vehicle that heads on shines the LED lamp, the light beam that the vehicle that heads on sent is from the direction of keeping away from the LED lamp to the direction of being close to the LED lamp, the direction of detecting the light beam propagation of two cars this moment is inconsistent, according to setting for, reject the inconsistent interference light beam of light beam direction who sends with LED lamp pearl, leave the information relevant with the light beam that LED lamp pearl sent.
Further, the intensity of the main light beam of the LED lamp is determined according to the light intensity of the light beam emitted by the LED lamp bead; screening out interference light beams falling onto the reflector and having different light intensity from the main light beams of the LED lamp according to the light intensity of the main light beams of the LED lamp; and determining luminous flux information according to the light beam with the same light intensity as the main light beam of the LED lamp.
In this embodiment, the reflector is a mirror installed in the LED lamp housing for reflecting light emitted by the LED lamp bead; the main light beam of the LED lamp is the main propagation direction of the light beam emitted from the bead of the LED lamp; the interference light beam with different light intensity from the main light beam of the LED lamp refers to a light beam irradiated on the reflector from the outside, and the light beam emitted by the LED lamp bead do not belong to the same light emitting source.
Specifically, the intensity of each beam of light is measured through a light intensity sensor, then the intensity of the light projected onto a reflector and the intensity of the light emitted by an LED lamp bead are compared, if the intensity of the light projected onto the reflector and the intensity of the light emitted by the LED lamp bead are consistent, the beam of light belongs to the light emitted by the LED lamp bead, and if the intensities are inconsistent, the beam of light does not belong to the light emitted by the LED lamp bead, and the light is rejected; and finally, light with the light intensity consistent with that emitted by the LED lamp beads is kept, and the luminous flux of the LED lamp is calculated according to the LED lamp light falling onto the reflecting plate.
After S102, further comprising:
s103: acquiring luminous flux at preset distance intervals along the main direction of the light beam of the LED lamp; calculating a light flux difference between adjacent ones of the distance intervals; and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference.
In this embodiment, the distance interval means that the light beam is divided into a plurality of small segments with equal length along the main direction of the light beam of the LED lamp, and the plurality of small segments with equal length are sequentially set as a1, a2, and A3. . . Here, a1, a2, and A3 are given as examples.
Specifically, light fluxes B1, B2 and B3 at the positions separated by a1, a2 and A3 along the main direction of the light beam of the LED lamp are obtained, and then difference comparison is performed between B1, B2 and B3 and light fluxes C1, C2 and C3 in preset separation segments respectively, and the obtained difference is the attenuation value of the brightness of the LED lamp. And then converting the attenuation value into light compensation quantity, and further controlling the standby LED lamp to start according to the light compensation quantity so as to realize normal illumination for the user by the automobile headlamp.
The embodiment of the application also discloses an LED lighting system for the automobile headlight. Referring to fig. 2, the LED lighting system for the automotive headlight includes:
a luminous flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
a difference value calculation module: determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
the information triggering and sending module: and when the difference value is negative, sending prompt information to the associated terminal.
Further, the luminous flux obtaining module comprises a luminous flux obtaining first sub-module and a luminous flux obtaining second sub-module, wherein the luminous flux obtaining first sub-module: obtaining the irradiation direction of the LED lamp to determine the main direction of the light beam of the LED lamp; screening out interference light beams falling onto the LED lamp and having the direction different from the main direction of the light beams of the LED lamp according to the main direction of the light beams of the LED lamp; and determining luminous flux information according to the light beam in the same direction as the main direction of the light beam of the LED lamp.
A luminous flux acquisition second sub-module: acquiring luminous flux at preset distance intervals along the main direction of the light beam of the LED lamp; calculating a light flux difference between adjacent ones of the distance intervals; and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference.
Further, the guidance system further includes: the luminous flux obtains first submodule piece and includes the light screening unit, and the light screening unit: determining the intensity of a main light beam of the LED lamp according to the light intensity of the light beam emitted by the LED lamp bead; screening out interference light beams falling onto the reflector and having different light intensity from the main light beams of the LED lamp according to the light intensity of the main light beams of the LED lamp; and determining luminous flux information according to the light beam with the same light intensity as the main light beam of the LED lamp.
Further, the guidance system further includes: electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on the luminous flux information; and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
Further, the guidance system further includes: a light intensity supplement module: acquiring the current of the LED lamp in real time to determine the current voltage of the LED lamp; determining a voltage difference value between the current voltage of the LED lamp and a power supply reference value; and determining the supplementary voltage of the LED lamp according to the voltage difference value.
The embodiment of the application also discloses a computer device, which can be a server, with reference to fig. 3. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used to store historical suspicious behavior data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize a detection method of the LED lighting system for the automobile headlight.
In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
s100: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
s200: determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
s300: and when the difference value is negative, sending prompt information to the associated terminal.
Further, the processor executes the computer program to realize any method step of the detection method of the LED light-emitting system for the automobile headlight.
The embodiment of the application also discloses a computer readable storage medium. In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
s100: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
s200: determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
s300: and when the difference value is negative, sending prompt information to the associated terminal.
Further, the computer program, when being executed by the processor, further realizes any method step of the detection method of the LED light-emitting system for the automobile headlight.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. A detection method of an LED light-emitting system for an automobile headlight is characterized in that: the method comprises the following steps:
acquiring the brightness of the LED lamp in real time and generating luminous flux information;
determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
when the difference is negative, sending prompt information to the associated terminal;
meanwhile, an electric quantity supplement model is established based on the luminous flux information;
and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
2. The method for detecting the LED lighting system for the automotive headlight as claimed in claim 1, wherein the method comprises the following steps: the step of acquiring the brightness of the LED lamp in real time and generating brightness information comprises the following steps:
obtaining the irradiation direction of the LED lamp to determine the main direction of the light beam of the LED lamp;
screening out interference light beams falling onto the LED lamp and having the direction different from the main direction of the light beams of the LED lamp according to the main direction of the light beams of the LED lamp;
and determining luminous flux information according to the light beam in the same direction as the main direction of the light beam of the LED lamp.
3. The method for detecting the LED lighting system for the automotive headlight as claimed in claim 2, wherein the method comprises the following steps: the step of determining luminous flux information according to the light beam in the same direction as the main direction of the light beam of the LED lamp comprises the following steps:
acquiring luminous flux at preset distance intervals along the main direction of the light beam of the LED lamp;
calculating a light flux difference between adjacent ones of the distance intervals;
and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference.
4. The method for detecting the LED lighting system for the automotive headlight as claimed in claim 2, wherein the method comprises the following steps: the step of screening the interference light beams which fall onto the LED lamp and are different from the main direction of the light beam of the LED lamp according to the main direction of the light beam of the LED lamp comprises the following steps:
determining the intensity of a main light beam of the LED lamp according to the light intensity of the light beam emitted by the LED lamp bead;
screening out interference light beams falling onto the reflector and having different light intensity from the main light beams of the LED lamp according to the light intensity of the main light beams of the LED lamp;
and determining luminous flux information according to the light beam with the same light intensity as the main light beam of the LED lamp.
5. The method for detecting the LED lighting system for the automotive headlight as claimed in claim 1, wherein the method comprises the following steps: the step of acquiring the brightness of the LED lamp in real time and generating luminous flux information comprises the following steps:
acquiring the current of the LED lamp in real time to determine the current voltage of the LED lamp;
determining a voltage difference value between the current voltage of the LED lamp and a power supply reference value;
and determining the supplementary voltage of the LED lamp according to the voltage difference value.
6. The utility model provides a LED lighting system for car headlight which characterized in that: the system comprises:
a luminous flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
a difference value calculation module: determining a difference value between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
the information triggering and sending module: and when the difference value is negative, sending prompt information to the associated terminal.
7. The LED lighting system for the automotive headlight as claimed in claim 6, wherein: the system further comprises:
electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on the luminous flux information; and generating the required supplementing electric quantity information of the LED lamp according to the electric quantity supplementing module.
8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: the steps of the method for detecting the LED lighting system for the automotive headlight according to any one of the claims 1 to 5 are realized when the computer program is executed by the processor.
9. A computer-readable storage medium characterized by: a computer program which can be loaded by a processor and which executes the method according to any of claims 1-5.
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