CN112393885B - LED lighting system for automobile headlight and detection method of LED lighting system - Google Patents
LED lighting system for automobile headlight and detection method of LED lighting system Download PDFInfo
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- CN112393885B CN112393885B CN202011382854.2A CN202011382854A CN112393885B CN 112393885 B CN112393885 B CN 112393885B CN 202011382854 A CN202011382854 A CN 202011382854A CN 112393885 B CN112393885 B CN 112393885B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 lighting system for an automobile headlight, which comprises the steps of firstly, acquiring the brightness of an LED lamp in real time and generating luminous flux information; then, determining a difference between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value; and finally, when the difference value is negative, sending prompt information to the associated terminal. The brightness of the current LED lamp is judged by acquiring 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 lamp light emitted by the LED lamp reaches a preset value at the moment. If the difference between the luminous flux information and the luminous flux reference value is negative, the fact that the luminous flux of the LED lamp is smaller than the reference value at the moment is proved, the LED lamp is in light attenuation, and a prompt message is sent to an associated terminal to prompt a user, so that the user can timely master the detailed information of the automobile headlight luminescence, and the light attenuation of the LED lamp is processed according to the situation.
Description
Technical Field
The application relates to the field of automobile lamps, in particular to an LED lighting system for an automobile headlight and a detection method of the system.
Background
The headlight is installed on both sides of the front end of the automobile, and the headlight manufactured by the LEDs has the advantages of starting block, small volume and long service life, so the headlight is widely applied to the automobile headlight. When the LED lamp is used as a light source of a headlight of a car, a plurality of LED light emitting device arrays are generally used.
Aiming at the related technologies, the inventor considers that the LED lamp has a plurality of advantages, but the junction temperature generated by the PN junction of the LED is increased, so that the light attenuation of the LED is increased, the luminous efficiency is influenced, the service life is shortened, and the defect that the light attenuation of the LED lamp can be discovered only when the light of the LED lamp is obviously darkened exists by a user.
Disclosure of Invention
In order to solve the trouble that the light attenuation of the LED lamp cannot be found in time, the application provides an LED lighting system for an automobile headlight and a detection method of the system.
In a first aspect, the present application provides a detection method of an LED lighting system for a headlight of an automobile, which adopts the following technical scheme:
a detection method of an LED lighting 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 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 PN junction of LED lamp can all produce heat at every turn when the work of LED lamp, and the produced heat of PN junction can cause certain influence to other electron primordial qi spare in the LED lamp, and then makes the luminous flux of LED lamp receive the influence. The brightness of the current LED lamp is judged by acquiring 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 lamp light emitted by the LED lamp reaches a preset value at the moment. If the difference between the luminous flux information and the luminous flux reference value is negative, it is proved that the luminous flux of the LED lamp is smaller than the reference value at the moment, and the LED lamp has light attenuation, and the user is prompted by sending prompt information to the associated terminal, so that the user can timely master the detailed information of the automobile headlight light emission, and the light attenuation of the LED lamp is processed according to the situation, so that the current situation of the LED lamp is improved, and the LED lamp is kept in a better working state.
Preferably, the step of obtaining the brightness of the LED lamp in real time and generating the brightness information includes:
acquiring the irradiation direction of the LED lamp to determine the main direction of the LED lamp light beam;
screening out interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams;
and determining luminous flux information according to the lamp beams in the same direction as the main direction of the LED lamp beams.
Through adopting above-mentioned technical scheme, when opening the LED lamp, the LED lamp is towards the place ahead emission light beam of car, most light beam is towards same direction emission, when the LED lamp is opened, obtain the light beam main direction that the LED lamp launched, remove the interfering light beam that falls on the LED lamp and the light beam main direction of LED lamp is different according to the light beam main direction of LED lamp, like sunlight, other light of shining on the LED lamp of this car on, the light beam direction of its light beam divergence is inconsistent with the light beam direction that this LED lamp sent, according to the difference of light beam direction, remove the interfering light beam that is different with the light beam main direction of LED lamp, thereby obtain the luminous flux information, respond the strong and weak of current LED lamp light through the luminous flux information, and make the measure in time.
Preferably, the step of determining the luminous flux information according to the light beam in the same direction as the main direction of the LED light beam includes:
acquiring luminous flux at preset distance intervals along the main direction of the LED light beam;
calculating a luminous flux difference between adjacent distance intervals;
and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference value.
By adopting the technical scheme, the luminous flux information of the preset distance interval acquired along the main direction of the LED light beam is acquired, so that the luminous flux of each distance interval of the LED light beam is acquired, the difference value of the luminous fluxes of adjacent distance intervals is calculated, then the ratio between the acquired adjacent difference values is calculated, if the former-stage ratio is larger than the latter-stage ratio, the attenuation of the light beam in the transmission process can be obtained, then the attenuation degree of the light beam is calculated according to the acquired difference value of the adjacent distance intervals, and then the attenuation degree of the light beam is converted into the luminous flux information.
Preferably, the step of screening out the interference light beam falling onto the LED lamp and different from the main direction of the LED light beam according to the main direction of the LED light beam 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 which fall onto the reflecting mirror and are different from the light intensity of the LED lamp main light beam according to the light intensity of the LED lamp main light beam;
the luminous flux information is determined according to the light beam with the same light intensity as the main light beam of the LED lamp.
Through adopting above-mentioned technical scheme, according to the superposition principle of light, the monochromatic light that different light sources sent is difficult for taking place to superpose, consequently, through measuring the intensity difference between the light intensity that the LED lamp pearl sent the light beam and other stray light that falls on the speculum, screen other light except that the LED lamp pearl sent the light beam, reduce the influence of stray light to the luminous flux of the light that the LED lamp pearl sent, improved the accuracy of judgement.
Preferably, after the step of obtaining the brightness of the LED lamp and generating the luminous flux information in real time, the method further includes:
establishing an electric quantity supplementing model based on luminous flux information;
and generating the deficiency supplementing electric quantity information required by the LED lamp according to the electric quantity supplementing module.
By adopting the technical scheme, the dimming of the LED lamp is possibly caused by insufficient power supply, the difference value between the light intensity and the preset reference value is calculated according to the light intensity of the LED lamp in the luminous flux information reaction, the electric quantity required to be supplemented by the LED lamp at different light intensity is calculated, a one-to-one correspondence is established, and an electric quantity supplementing model is established according to the settlement result, so that the electric quantity supplementing information required by the LED lamp can be directly obtained according to the magnitude value of the input luminous flux information.
Preferably, the step of obtaining the brightness of the LED lamp and generating the luminous flux information in real time 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 darkens probably because the power supply is not enough to lead to, through the current size of obtaining the LED lamp in real time, because the resistance of LED lamp is certain, consequently, can convert out the current voltage size of LED lamp through the electric current, through carrying out the difference calculation with the power supply benchmark value of predetermineeing with the voltage size of obtaining, the voltage difference of voltage size and power supply benchmark value of predetermineeing, if the voltage difference 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 better illuminating effect.
In a second aspect, the present application provides an LED lighting system for a headlight of an automobile, which adopts the following technical scheme:
the system comprises:
a light flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
and a difference value calculation module: determining a difference 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 PN junction of LED lamp can all produce heat at every turn when the work of LED lamp, and the produced heat of PN junction can cause certain influence to other electron primordial qi spare in the LED lamp, and then makes the luminous flux of LED lamp receive the influence. The luminous flux acquisition module judges the brightness of the current LED lamp by acquiring luminous flux information of the LED lamp, and the difference value calculation module calculates the difference value between the luminous flux information and the luminous flux reference value to judge whether the lamp light emitted by the LED lamp reaches a preset value at the moment. If the difference between the luminous flux information and the luminous flux reference value is a negative number, it is proved that the luminous flux of the LED lamp is smaller than the reference value at the moment, the LED lamp generates light attenuation, and the information triggering and sending module prompts a user by sending prompt information to an associated terminal, so that the user can timely master the detailed information of the automobile headlight to emit light, and the light attenuation condition of the LED lamp is processed according to the condition, so that 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:
the electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on luminous flux information; and generating the deficiency supplementing electric quantity information required by the LED lamp according to the electric quantity supplementing module.
By adopting the technical scheme, the dimming of the LED lamp is possibly caused by insufficient power supply, the difference value between the light intensity and the preset reference value is calculated according to the light intensity of the LED lamp in the luminous flux information reaction, the electric quantity required to be supplemented by the LED lamp at different light intensity is calculated, a one-to-one correspondence is established, and an electric quantity supplementing model is established according to the settlement result, so that the electric quantity supplementing information required by the LED lamp can be directly obtained according to the magnitude value of the input luminous flux information.
In a third aspect, the present application provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps of the method for detecting an LED lighting system for a headlight of a vehicle according to any one of the embodiments of the second aspect.
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 described above.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the brightness of the current LED lamp is judged by acquiring 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 lamp light emitted by the LED lamp reaches a preset value at the moment. If the difference between the luminous flux information and the luminous flux reference value is a negative number, the fact that the luminous flux of the LED lamp is smaller than the reference value at the moment is proved, the LED lamp generates light attenuation, and a prompt message is sent to an associated terminal to prompt a user so that the user can timely master the detailed information of the automobile headlight to emit light, and the light attenuation condition of the LED lamp is processed according to the condition to improve the current condition of the LED lamp, so that the LED lamp is kept in a better working state;
2. the light intensity of the light beam emitted by the LED lamp beads and the intensity difference between other stray light falling on the reflecting mirror are measured, so that other light except the light beam emitted by the LED lamp beads is 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 between the light intensity and a preset reference value, calculating the electric quantity required to be supplemented by the LED lamp when the light intensities are different, establishing a one-to-one correspondence relation, and establishing an electric quantity supplementing model according to a settlement result so as to directly obtain the required electric quantity supplementing information of the LED lamp according to the value of the input luminous flux information.
Drawings
FIG. 1 is a flow chart of a method of detecting an LED lighting system for a headlight of an automobile in an embodiment of the application;
FIG. 2 is a schematic diagram of the module composition of an LED lighting system for a headlight of an automobile according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a computer device in an embodiment of the present application.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-2.
The embodiment of the application discloses a detection method of an LED lighting system for an automobile headlight. Referring to fig. 1, the method for detecting an LED lighting system for a headlight of an automobile 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 per unit time, which is a value describing the total amount of light emitted by the light source, for the light source, referred to as the luminous flux of the LED light source.
Specifically, the illumination sensor is arranged in the LED lamp to detect 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 the detected brightness intensity value.
After S100, further comprising:
s200: and determining a difference between the luminous flux information and the luminous flux reference value based on a preset luminous flux reference value.
In the present embodiment, the light flux reference value is the light flux of the LED lamp at the index setting.
Specifically, a luminous flux reference value is obtained through an external recording mode, difference value calculation is carried out on luminous flux information obtained in real time and the luminous flux reference value, when the obtained difference value is larger than or equal to 0, the fact that the luminous flux information obtained in real time at the moment is larger than the luminous flux reference value is proved, and if the obtained difference value is smaller than 0, the fact that the luminous flux information obtained in real time at the moment is lower than the luminous flux reference value is proved. And in comparison, comparing the luminous flux information in the continuous time period with a luminous flux reference value, and judging that the acquired luminous flux information is lower than the luminous flux reference value when the luminous flux information and the luminous flux reference value are continuously smaller than 0 or are mostly smaller than 0, wherein the LED lamp generates light attenuation (light dimming), and the light attenuation of the LED is the absolute value of the difference value between the luminous flux information and the luminous flux reference value divided by the luminous 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 associated terminal is 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, etc., and in this embodiment, the display terminal of the automobile control system is taken as an example for explanation. The prompt message is a color signal of a display lamp or a sounding prompt sound on a display terminal of the automobile control system.
Specifically, when the comparison shows that the luminous flux information is smaller than the luminous flux reference value, namely, when the difference is negative, a prompt signal is sent to a display terminal of the automobile control system so as to remind a user that the brightness of an LED lamp of the automobile is darker than that of a normal state, meanwhile, an attenuation value of the brightness of the LED lamp can be obtained by calculating the difference 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 together, so that the user can grasp the condition of the automobile headlight in time, and the user can make treatment in time according to the grasped condition.
Assuming that the current luminous flux of the LED lamp is 1300lm, the luminous flux reference value is 2000lm, the difference between the luminous flux information and the luminous flux reference value is 700, the difference is smaller than 0, a prompt signal is sent to a display terminal of an automobile control system, and the display terminal of the automobile control system lights the prompt signal lamp.
Further, the LED lamps at two sides of the front end of the automobile respectively carry different identification codes, and the system identifies the two LED lamps carrying different identification codes and stores acquired data in different storage libraries, so that a user can conduct targeted processing on the two LED lamps according to specific conditions.
In one embodiment, after S100, further comprising:
s101: establishing an electric quantity supplementing model based on luminous flux information; and generating the deficiency supplementing electric quantity information required by the LED lamp according to the electric quantity supplementing module.
In this embodiment, the electric quantity supplementing model refers to a set of each numerical electric quantity which is preset and stored in a database and needs to be supplemented corresponding to the current electric quantity of the LED lamp. The electric quantity supplementing information 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 obtained luminous flux information is calculated by a calculation formula 1nit (brightness) =cd/m 2, cd=lm/Ω (Ω is a solid angle, and unit is sphere sr), the obtained brightness is converted into the current electric quantity of the LED lamp, and the electric quantity difference between the current electric quantity and the standard electric quantity is calculated to obtain the electric quantity difference which is the electric quantity required to be supplemented by the LED lamp. For example, the current electric quantity of the LED lamp is 25W, the standard value is 35W, and the difference value between the current electric quantity and the standard value is-10, so that the electric quantity of 10W needs to be supplemented to the LED lamp, and the LED lamp is kept in a preset illumination range.
Further, the current voltage of the LED lamp can be determined by detecting the power consumption of the LED lamp and acquiring the current of the LED lamp in real time; 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 the current at the power supply access end of the LED lamp; the supplementary voltage is an external voltage which needs to be additionally transmitted to the LED lamp when the voltage difference is negative.
Specifically, when the light of the LED lamp is dimmed, it may be caused by an insufficient power supply voltage of the LED lamp. The voltage sensor is used for detecting the voltage of the LED lamp, then the voltage sensor is used for calculating the difference value between the voltage of the LED lamp and the power supply reference value so as to obtain the voltage value required to be supplemented, and then the standby power supply (for 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 at a normal value.
In an embodiment, further comprising:
s102: acquiring the irradiation direction of the LED lamp to determine the main direction of the LED lamp light beam; screening out interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams; and determining luminous flux information according to the lamp beams in the same direction as the main direction of the LED lamp beams.
In this embodiment, the main direction of the LED light beam refers to the direction in which the LED lights radiate (the direction in which the lights diverge) in the state in which the LED lights are turned on; the disturbing light beam having a direction different from the main direction of the light beam of the LED lamp means that the external lamp emits a light beam towards the LED lamp when the vehicle is in a bright environment.
Specifically, through using the orientation that the caliber measurement LED lamp pearl was installed, alright obtain the direction of LED lamp emission light beam, and then alright obtain LED light beam main direction (also can obtain LED light beam main direction through detecting the undulant direction of light particle or obtain LED light beam main direction through the light-following auxiliary ware) and save the LED light beam main direction that obtains. Considering that the light generated by the outside can influence the judgment of the luminous flux of the LED lamp, the received light which is different from the main direction of the LED lamp light beam is eliminated. And then calculating the light intensity of the LED lamp light beam reaching, leaving or passing through the curved surface of the LED lamp shell in unit time to obtain the luminous flux.
The light beams emitted by the LED lamp beads face the front of the automobile and are emitted from inside to outside, one automobile is started from the front, the light on the automobile is irradiated to the LED lamp, the light beams emitted by the automobile are emitted from the direction away from the LED lamp to the direction close to the LED lamp, at the moment, the inconformity of the light beam propagation directions of the two automobiles is detected, interference light beams inconformity with the light beam directions emitted by the LED lamp beads are removed according to the setting, and information related to the light beams emitted by the LED lamp beads is left.
Further, determining the intensity of the 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 which fall onto the reflecting mirror and are different from the light intensity of the LED lamp main light beam according to the light intensity of the LED lamp main light beam; the luminous flux information is determined according to the light beam with the same light intensity as the main light beam of the LED lamp.
In this embodiment, the reflecting mirror is a mirror installed in the LED lamp housing and used for reflecting the light emitted by the LED lamp beads; the main light beam of the LED lamp refers to the main propagation direction of the light beam emitted from the LED lamp bead; the interference light beam different from the light intensity of the main light beam of the LED lamp refers to the light beam irradiated to 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 the reflector is compared with the intensity of the light emitted by the LED lamp beads, if the intensity of the light projected onto the reflector is consistent with the intensity of the light emitted by the LED lamp beads, the beam of light belongs to the light emitted by the LED lamp beads, and if the intensity of the light is inconsistent, the beam of light does not belong to the light emitted by the LED lamp beads, and the light is removed; and finally, reserving light rays with the light intensity consistent with the light intensity emitted by the LED lamp beads, and calculating the luminous flux of the LED lamp according to the light rays of the LED lamp falling onto the reflecting plate.
After S102, further including:
s103: acquiring luminous flux at preset distance intervals along the main direction of the LED light beam; calculating a luminous flux difference between adjacent distance intervals; and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference value.
In this embodiment, the distance interval refers to dividing the light beam into a plurality of equal-length segments along the main direction of the light beam of the LED lamp, where the equal-length segments are sequentially set as A1, A2, and A3.. . Here, A1, A2, A3 will be described as an example.
Specifically, light fluxes B1, B2 and B3 at the separation positions of A1, A2 and A3 along the main direction of the light beam of the LED lamp are obtained, and then the difference values of the light fluxes C1, C2 and C3 in the preset interval section are respectively compared with the difference values of the light fluxes B1, B2 and B3, and the obtained difference values are the attenuation values of the brightness of the LED lamp. And then converting the attenuation value into light compensation quantity, and controlling the starting of the standby LED lamp according to the light compensation quantity so that the automobile headlight can realize normal illumination for a user.
The embodiment of the application also discloses an LED lighting system for the automobile headlight. Referring to fig. 2, the LED lighting system for a headlight of an automobile includes:
a light flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
and a difference value calculation module: determining a difference 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 light flux obtaining module includes a light flux obtaining first sub-module, a light flux obtaining second sub-module, the light flux obtaining first sub-module: acquiring the irradiation direction of the LED lamp to determine the main direction of the LED lamp light beam; screening out interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams; and determining luminous flux information according to the lamp beams in the same direction as the main direction of the LED lamp beams.
The light flux acquisition second sub-module: acquiring luminous flux at preset distance intervals along the main direction of the LED light beam; calculating a luminous flux difference between adjacent distance intervals; and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference value.
Further, the guidance system further includes: the luminous flux acquisition first submodule comprises a light screening unit, and the light screening unit is used for: 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 which fall onto the reflecting mirror and are different from the light intensity of the LED lamp main light beam according to the light intensity of the LED lamp main light beam; the luminous flux information is determined 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: the electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on luminous flux information; and generating the deficiency supplementing electric quantity information required by the LED lamp according to the electric quantity supplementing module.
Further, the guidance system further includes: the light intensity supplementing 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, referring to fig. 3, which may be a server. 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 includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. 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, when executed by a processor, implements a method for detecting an LED lighting system for a headlight of a vehicle.
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 steps of 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 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 implement any method step of the detection method of the LED lighting 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 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 executed by the processor also realizes any method step of the detection method of the LED lighting system for the automobile headlight.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile 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), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (7)
1. A detection method of an LED lighting system for an automobile headlight is characterized by comprising the following steps: the method comprises the following steps:
acquiring the brightness of the LED lamp in real time and generating luminous flux information;
determining a difference between the luminous flux information and a luminous flux reference value based on a preset luminous flux reference value;
when the difference value is negative, sending prompt information to the associated terminal;
meanwhile, an electric quantity supplementing model is established based on luminous flux information;
generating the information of the deficiency supplementing electric quantity required by the LED lamp according to the electric quantity supplementing model;
the step of acquiring the brightness of the LED lamp and generating brightness information in real time comprises the following steps:
acquiring the irradiation direction of the LED lamp to determine the main direction of the LED lamp light beam;
screening out interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams;
determining luminous flux information according to the light beams in the same direction as the main direction of the LED light beams;
the step of screening out the interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams 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 which fall onto the reflecting mirror and are different from the light intensity of the LED lamp main light beam according to the light intensity of the LED lamp main light beam;
the luminous flux information is determined according to the light beam with the same light intensity as the main light beam of the LED lamp.
2. The method for detecting the LED lighting system for the automotive headlamp according to claim 1, wherein: the step of determining luminous flux information according to the light beam in the same direction as the main direction of the LED light beam comprises the following steps:
acquiring luminous flux at preset distance intervals along the main direction of the LED light beam;
calculating a luminous flux difference between adjacent distance intervals;
and calculating the attenuation value of the brightness of the LED lamp according to the luminous flux difference value.
3. The method for detecting the LED lighting system for the automotive headlamp according to claim 1, wherein: the step of acquiring the brightness of the LED lamp and generating luminous flux information in real time 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.
4. An LED lighting system for an automotive headlight, characterized in that: the system comprises:
a light flux acquisition module: acquiring the brightness of the LED lamp in real time and generating luminous flux information;
and a difference value calculation module: determining a difference 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: when the difference value is negative, sending prompt information to the associated terminal;
the electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on luminous flux information; generating the information of the deficiency supplementing electric quantity required by the LED lamp according to the electric quantity supplementing model;
light flux acquisition first sub-module: acquiring the irradiation direction of the LED lamp to determine the main direction of the LED lamp light beam; screening out interference light beams falling onto the LED lamp and different from the main direction of the LED light beams according to the main direction of the LED light beams; determining luminous flux information according to the light beams in the same direction as the main direction of the LED light beams;
the luminous flux acquisition first submodule comprises a light screening unit, and the light screening unit is used for: 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 which fall onto the reflecting mirror and are different from the light intensity of the LED lamp main light beam according to the light intensity of the LED lamp main light beam; the luminous flux information is determined according to the light beam with the same light intensity as the main light beam of the LED lamp.
5. An LED lighting system for an automotive headlamp as set forth in claim 4, wherein: the system further comprises:
the electric quantity acquisition and calculation module: establishing an electric quantity supplementing model based on luminous flux information; and generating the deficiency supplementing electric quantity information required by the LED lamp according to the electric quantity supplementing model.
6. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized by: the processor, when executing the computer program, implements the steps of the method for detecting an LED lighting system for a headlight of an automobile according to any one of claims 1 to 3.
7. A computer-readable storage medium, characterized by: a computer program that can be loaded by a processor and that executes the method for detecting an LED lighting system for a headlight of a vehicle according to any one of claims 1 to 3.
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