CN114096035A - System and method for switching light intensity output level configuration of navigation light - Google Patents
System and method for switching light intensity output level configuration of navigation light Download PDFInfo
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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Abstract
The application belongs to the technical field of navigation light control schemes, and particularly relates to a navigation light intensity output grade configuration switching system and a switching method thereof. The navigation light intensity output grade configuration switching system comprises a light intensity configuration storage device arranged in a navigation light; code storage device, current grade recording device, processor navigation light intensity output grade configuration switching method, and the step of determining light intensity configuration grade and light intensity configuration grade data; generating and storing a configuration identification sequence; recording and storing the level and change data of the input current; and generating a real-time coding sequence or a real-time coding sequence segment, and adjusting the output configuration of the navigation light. The system and the method for switching the light intensity output level configuration of the navigation light enable the navigation light which can normally work and operate only in a single configuration mode to be judged and identified originally, and configuration change is carried out according to the change of an input power supply, so that the navigation light has better use performance and a configuration switching scheme which is convenient and fast.
Description
Technical Field
The application belongs to the technical field of navigation light control schemes, and particularly relates to a navigation light intensity output grade configuration switching system and a switching method thereof.
Background
In the traditional navigation aid lamp, the light intensity of a taxiway center line lamp is determined, namely the average light intensity of a main light beam is more than 200cd in a straight line section of the taxiway center line, and the average light intensity of the main light beam is more than 100cd in a curved section of the taxiway center line. However, as more and more airports are using the a-SMGCS advanced ground guidance system, the light intensity requirements for taxiway centerline lights are different, such as in ICAO-attachment 14, which explicitly presents a light intensity map of high light intensity taxiway centerline lights for straight and curved sections of advanced ground activity guidance with higher light intensity. From the viewpoint of feedback from the use and installation implementation of an airport, the light intensity of the feedback taxiway is not sufficient in a partial region, and it is desirable to increase the light intensity. Therefore, it is necessary to integrate the taxiway lamps with different light intensity configurations into the same set of lamps to reduce or improve the light intensity output according to the actual use requirement on site.
In practical use, the output (light intensity/illumination level) of the navigation light is matched with the input current and is limited by the limitation of a power supply system and a control mode, the output of a common light modulator is a plurality of fixed specific values, the output is divided into a plurality of levels from low to high according to the current of the input navigation light, the output is generally five levels, namely a so-called five-level light modulation system, the input current of the power supply is one level, the navigation light is output with the first-level light intensity, the input current is two levels, the output is with the second-level light intensity, and the like, for any navigation light, when the same or the same series of light modulators or power supplies are connected, the input current at the same level is the same, and the light modulators or the power supplies are converted into different output light intensities only through a control circuit solidified in the navigation light; according to the requirements of the aviation lamp production and use specifications, the aviation lamps used at different positions have corresponding requirements on the lowest and highest illumination intensity when the aviation lamps normally work, so that the common aviation lamps are all five-level dimming.
From the perspective of lamp design and light intensity requirements, lamps with different light intensity configuration requirements can be unified to a set of optical and structural components, and when higher light intensity configuration can be covered, low light intensity only needs to be adjusted and driven to output current to the LED lamp beads. However, in practice, since the lamp has only 2PIN cable terminals to the outside, and has no external communication capability, the lamp is often required to be disassembled for replacement configuration, adjustment is performed on the circuit board, the process is complicated, and the lamp is unlikely to be adjusted for the lamp already installed on the road surface.
Disclosure of Invention
The application aims to provide the system and the method for switching the light intensity output grade configuration of the navigation lights, which can be used for controlling and managing the output of the navigation lights, so that the navigation lights can be output in different light intensity configurations, can be used in and out of specifications and standards, expand the application range of the navigation lights and are convenient to realize, on the premise of not changing basic hardware and not changing the existing system.
In order to achieve the purpose, the following technical scheme is adopted in the application.
A kind of navigation light intensity output grade disposes the switching system, including the light intensity disposed in navigation light disposes the storage device;
the light intensity configuration storage device is internally stored with a plurality of light intensity configuration grade data, and the light intensity configuration grade data correspond to light intensity output parameters of the navigation lamp under different functional requirements;
the system also comprises a code storage device, wherein a configuration identification sequence is stored in the code storage device; the configuration identification sequence consists of a plurality of current grade codes in fixed sequence; the current grade code corresponds to the grade of the input current; configuring the identification sequence or configuring the segment of the identification sequence to form a specific light intensity configuration grade code;
the current grade recording device is used for acquiring the size and the change data of the input current and generating corresponding grade code information;
further comprising a processor configured to:
A. reading the generated grade code information based on a current grade recording device to generate a real-time coding sequence or a real-time coding sequence segment;
B. comparing whether the real-time coding sequence or the real-time coding sequence segment is matched with the light intensity configuration grade code;
C. if the current light intensity configuration level is matched with the light intensity configuration level, adjusting the corresponding light intensity configuration level according to the matching result, and adjusting the output of the navigation light according to the light intensity output parameter corresponding to the current light intensity configuration level; if not, the current configuration is regarded as a general control signal, and the light intensity in the configuration is adjusted according to the change of the input current level.
In a further improved or preferred embodiment of the aforementioned system for switching configuration of light intensity output levels of the navigation lights, the processor is further configured to continuously read information of the input current after determining the current light intensity configuration level, and continuously adjust the actual power supply voltage of the lamp bead in real time according to the input current level and the current light intensity configuration level when an input current signal conforming to the configuration identification sequence or the configuration identification sequence segment is not read.
In a further improved or preferred embodiment of the aforementioned system for switching configuration of light intensity output levels of an aircraft light, the configuration identification sequence has at least one, and the configuration identification sequence includes a plurality of level codes that can be associated, where the association is: the grade codes are positioned at specific positions in the configuration identification sequence, and the grade and the change data of the corresponding current meet the preset requirements;
the preset requirements are as follows: specific current levels and chronological order, or specific current levels and durations, or specific current levels and frequencies.
A method for switching the light intensity output grade configuration of a navigation light comprises the following steps;
step A, a step for determining a plurality of different light intensity configuration grades of the navigation lights and light intensity configuration grade data; wherein:
the light intensity configuration grade comprises a plurality of different light intensity output grades, the light intensity output parameters are divided into a plurality of light intensity output parameters from low to high, and the total number of the light intensity output parameters corresponds to the total number of the adjustable grades of the input current or is less than the total number of the grades of the input current; the light intensity output parameters are matched with the adjustable grade sequence of the input current according to the magnitude sequence of the output light intensity;
the light intensity configuration grade data comprise specific output parameters of the navigation light bulb under the corresponding light intensity output grade;
step B, generating and storing configuration identification sequences: the configuration identification sequence comprises at least one set of known current level code sequences; the configuration identification sequence is stored in a code storage device;
step C, recording and storing the grade and change data of the input current; the method specifically comprises the following steps:
after the navigation lamp is started, sequentially screening and recording the magnitude of input current and change data for a plurality of times according to a preset screening rule, if the screening rule is met, continuously receiving enough data to form grade code information, and if the screening rule is not met, ignoring corresponding data and repeatedly obtaining new data for screening;
and D, generating a real-time coding sequence or a real-time coding sequence segment based on the grade code information, and adjusting the output configuration of the navigation light according to the coding sequence or the real-time coding sequence segment.
In a further improvement or preferred embodiment of the aforementioned method for switching the light intensity output level configuration of the navigation light, the preset screening rule is that the navigation light is turned on and then switched over at a fixed period T0On the basis that the acquisition duration is shorter than T0First n current levels { I) occurring periodically and continuouslyi}；
If the first n current levels { IiAnd corresponding current level duration period tiIf the current levels I and II meet the preset arrangement sequence and duration, the configuration switching task is considered to be started, and the subsequent current level I is continuously obtainedi+jAnd a duration period; and according to the first n + j current levels { Ii+jGenerating a corresponding configuration identification sequence, and performing trusted light intensity configuration switching operation according to the specific configuration identification sequence;
n is not less than 2, i is 1, 2 and 3. Fixed period T0Is a time much shorter than the lowest duty cycle at each current level when the navigation light is operating normally.
In a further improvement or preferred embodiment of the aforementioned method for switching the light intensity output level configuration of the navigation light, the preset filtering rule is a fixed periodic sequence { T } after the navigation light is turned onrOn the basis of the current, acquiring the duration of the current to accord with a periodic sequence (T)rThe first r current levels { I }r}；
If there is a current change { I) satisfying a predetermined sequence and durationrAnd if the current level I is higher than the preset value, the configuration switching task is started, and the subsequent current level I is continuously acquiredr+jAnd a duration period; and according to the first r + j current levels { Ir+jGenerating a corresponding configuration identification sequence, and performing trusted light intensity configuration switching operation according to the specific configuration identification sequence or segment;
wherein r is more than or equal to 2, and j is 0 or a positive integer; periodic sequence { TrAnd any one period in the current level control method is far shorter than the time of the lowest working period of each current level when the navigation light operates normally.
A further improvement or preferred embodiment of the aforementioned method for switching the configuration of the light intensity output level of the navigation light, wherein the configuration identification sequence defines a plurality of flag bits;
the flag bits comprise a wakeup bit K and a plurality of continuous confirmation bits { Mm } according to the front-back sequence; wherein m1, 2, 3 and adjacent validation bit elements are different;
the wake-up bit and the confirm bit correspond to known input currents with duration time according with a preset screening rule; the acknowledge bit M1 is different from the wake-up bit K, and the adjacent acknowledge bits Mu and M (u +1) are different;
if the current input current L0 is detected to be matched with the awakening position K, triggering an input current record, and waiting for a next input current change signal L1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
if the L1 is matched with the M1, continuing to wait for the next current input signal change L2, and performing configuration adjustment or light intensity output adjustment according to a preset configuration by using a configuration identification sequence formed by M1 or K + M1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
.....
if the matching of the Lt and the Mt is detected, continuing waiting for the next current input signal change L (t +1), and carrying out configuration adjustment or light intensity output adjustment by using a configuration identification sequence or a segment thereof formed by the Mt or K + M1+ M1+. Mt according to a preset configuration; otherwise, only under the current light intensity configuration grade, the light intensity in the configuration is adjusted according to the current input current grade, and the recorded data is discarded to restart the detection.
The beneficial effects are that:
the utility model provides a navigation light intensity output level configuration switching system and switching method thereof, under the prerequisite of fully considering current system's technical limitation and available structure in the current navigation light, the output characteristics of make full use of current dimmer and power under the prerequisite of utilizing current structure and function, combine inside treater and the circuit of navigation light to carry out controllable configuration discernment and handle, make the navigation light that originally generally can only work under single configuration mode can judge and discern, and carry out the configuration change according to the change of input power, so that it has better performance and common convenient configuration switching scheme.
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Detailed Description
The present application will be described in detail with reference to specific examples.
In a conventional navigation light structure, for example, a conventional LED taxiway center line light is implemented, a dimmer outputs loop currents of different levels to implement different light intensity outputs of an LED lamp, for example, an output signal of a certain type of dimmer is divided into: level 1: 2.8A (1%); and 2, stage: 3.4A (2%); and 3, level: 4.1A (8%); 4, level: 5.2A (30%); and 5, stage: 6.6A (100%);
the light intensity at the maximum current of the standard specification (namely 5-level 6.6A) is taken as standard light intensity test data, different light intensity configurations are provided for the navigation lights with different functions and purposes, but the grade of the input end of each navigation light (corresponding to the output current value of the dimmer outside the navigation light) is fixed and unchanged, and only the output light intensity (realized by the control circuit which is inherent in the navigation light) needs to be adjusted; the configured light intensity for different navigation lights corresponds to that shown in table 1:
TABLE 1 light intensity profile of different navigation lights
| Dimmer output level | The navigation light A: configuration 1 | Navigation light B configuration 2 | Navigation lights C configuration 3 |
| Level 1: 2.8A | 1cd | 2cd | 4cd |
| And 2, stage: 3.4A | 2cd | 4cd | 8cd |
| And 3, level: 4.1A | 8cd | 16cd | 32cd |
| 4, level: 5.2A | 30cd | 60cd | 120cd |
| And 5, stage: 6.6A | 100cd | 200cd | 400cd |
As shown in table 1, when the current of the bead characteristic of the LED in the navigation light increases, the output light intensity of the LED increases linearly, so the fundamental difference between different configurations is realized by the current output to the bead of the LED, and the change from the input current to the magnitude of the current on the bead is realized by the built-in circuit of the navigation light.
On the basis of the foregoing, in combination with the prior art, the specific scheme provided by the present application is as follows:
a kind of navigation light intensity output grade disposes the switching system, including the light intensity disposed in navigation light disposes the storage device;
the light intensity configuration storage device is internally stored with a plurality of light intensity configuration grade data, and the light intensity configuration grade data correspond to light intensity output parameters of the navigation lamp under different functional requirements;
the device also comprises a code storage device, wherein a configuration identification sequence is stored in the code storage device; the configuration identification sequence consists of a plurality of current grade codes in fixed sequence; the current grade code corresponds to the grade of the input current; configuring the identification sequence or configuring the segment of the identification sequence to form a specific light intensity configuration grade code;
the current grade recording device is used for acquiring the size and the change data of the input current and generating corresponding grade code information;
in practical implementation, a special current acquisition chip can be adopted on the circuit of the recording device and used for measuring the current value on the loop in real time so as to detect and judge the current output level of the dimmer;
further comprising a processor configured to:
A. based on the grade code information read by the current grade recording device, generating a real-time coding sequence or a real-time coding sequence segment,
B. comparing whether the real-time coding sequence or the real-time coding sequence segment is matched with the light intensity configuration grade code;
C. if the current light intensity configuration level is matched with the light intensity configuration level, adjusting the corresponding light intensity configuration level according to the matching result, and adjusting the output of the navigation light according to the light intensity output parameter corresponding to the current light intensity configuration level; if not, the current configuration is regarded as a general control signal, and the light intensity in the configuration is adjusted according to the change of the input current level.
In practical implementation, the processor can adopt a Cortex-M series embedded processor, a logic algorithm is realized through software programming, a corresponding light level change process is identified and recorded, a corresponding light intensity switching configuration instruction is converted into a basic control signal, then an LED driver in the navigation light is driven through a PWM signal, and finally the brightness of the LED light is adjusted.
The processor is also used for continuously reading the information of the input current after determining the current light intensity configuration grade, and continuously adjusting the actual power supply voltage of the lamp bead in real time according to the input current grade and the current light intensity configuration grade when the input current signal which accords with the configuration identification sequence or the configuration identification sequence segment is not read.
In a further improved or preferred embodiment of the aforementioned system for switching light intensity output level configuration of an aircraft light, the configuration identification sequence includes at least one, and the configuration identification sequence includes a plurality of level codes that can be associated, where the association means: the grade codes are positioned at specific positions in the configuration identification sequence, and the grade and the change data of the corresponding current meet the preset requirements;
the preset requirements are as follows: specific current levels and chronological order, or specific current levels and durations, or specific current levels and frequencies.
A method for switching the light intensity output grade configuration of a navigation light comprises the following steps;
step A, a step for determining a plurality of different light intensity configuration grades of the navigation lights and light intensity configuration grade data; wherein:
the light intensity configuration grade comprises a plurality of different light intensity output grades, the light intensity output parameters are divided into a plurality of light intensity output parameters from low to high, and the total number of the light intensity output parameters corresponds to the total number of the adjustable grades of the input current or is less than the total number of the grades of the input current; the light intensity output parameters are matched with the adjustable grade sequence of the input current according to the magnitude sequence of the output light intensity;
the light intensity configuration grade data comprises specific output parameters of the navigation light bead under the corresponding light intensity output grade;
step B, generating and storing configuration identification sequences: configuring the identification sequence to include at least a set of known current level code sequences; the configuration identification sequence is stored in the code storage device;
step C, recording and storing the grade and change data of the input current; the method specifically comprises the following steps:
after the navigation lamp is started, sequentially screening and recording the magnitude of input current and change data for a plurality of times according to a preset screening rule, if the screening rule is met, continuously receiving enough data to form grade code information, and if the screening rule is not met, ignoring corresponding data and repeatedly obtaining new data for screening;
and D, generating a real-time coding sequence or a real-time coding sequence segment based on the grade code information, and adjusting the output configuration of the navigation light according to the coding sequence or the real-time coding sequence segment.
The preset screening rule is that the power is turned on and then a fixed period T is used0On the basis that the acquisition duration is shorter than T0First n current levels { I) occurring periodically and continuouslyi}；
If the first n current levels { IiAnd corresponding current level duration period tiIf the current levels I and II meet the preset arrangement sequence and duration, the configuration switching task is considered to be started, and the subsequent current level I is continuously obtainedi+jAnd a duration period; and according to the first n + j current levels { Ii+jGenerating corresponding configuration identification sequence according to specific configurationSetting the identification sequence to perform trusted light intensity configuration switching operation;
n is not less than 2, i is 1, 2 and 3. Fixed period T0Is a time much shorter than the lowest duty cycle at each current level when the navigation light is operating normally.
Wherein, the preset screening rule is that the sequence { T ] is in a fixed period sequence after the computer is startedrOn the basis of the current, acquiring the duration of the current to accord with a periodic sequence (T)rThe first r current levels { I }r}；
If there is a current change { I) satisfying a predetermined sequence and durationrAnd if the current level I is higher than the preset value, the configuration switching task is started, and the subsequent current level I is continuously acquiredr+jAnd a duration period; and according to the first r + j current levels { Ir+jGenerating a corresponding configuration identification sequence, and performing trusted light intensity configuration switching operation according to the specific configuration identification sequence or segment;
wherein r is more than or equal to 2, and j is 0 or a positive integer; periodic sequence { TrAnd any one period in the current level control method is far shorter than the time of the lowest working period of each current level when the navigation light operates normally.
In a further improvement or preferred embodiment of the aforementioned method for switching the configuration of the light intensity output level of the navigation light, the configuration identification sequence defines a plurality of flag bits;
the flag bits comprise a wakeup bit K and a plurality of continuous confirmation bits { Mm } according to the front and back sequence; wherein m1, 2, 3 and adjacent validation bit elements are different;
the wake-up bit and the confirm bit correspond to known input currents with duration time according with a preset screening rule; the acknowledge bit M1 is different from the wake-up bit K, and the adjacent acknowledge bits Mu and M (u +1) are different;
if the current input current L0 is detected to be matched with the awakening position K, triggering an input current record, and waiting for a next input current change signal L1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
if the L1 is matched with the M1, continuing to wait for the next current input signal change L2, and performing configuration adjustment or light intensity output adjustment according to a preset configuration by using a configuration identification sequence formed by M1 or K + M1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
.....
if the matching of the Lt and the Mt is detected, continuing waiting for the next current input signal change L (t +1), and carrying out configuration adjustment or light intensity output adjustment by using a configuration identification sequence or a segment thereof formed by the Mt or K + M1+ M1+. Mt according to a preset configuration; otherwise, only under the current light intensity configuration grade, the light intensity in the configuration is adjusted according to the current input current grade, and the recorded data is discarded to restart the detection.
Based on the foregoing basic content and procedures, the following description is made with reference to specific examples:
the different grade outputs of the dimmer can be identified in hardware and transmitted to software in real time, and according to the use standard and the standard requirement, the dimmer generally can continuously work for a period of time after the grade is adjusted in the actual use process of the navigation light, and only when the visibility of an airport changes, the dimmer can adjust once to increase or reduce the light grade. Even in use of dimmers in non-airport locations, such as during testing, there are very few instances where the dimmer output light level needs to be adjusted multiple times in succession.
Therefore, the constant current dimmer can regularly switch light levels for multiple times within a limited time to realize the differentiated detection of the common supply current, realize the switching of different configurations and store and memorize the light in the lamp.
Here we use a continuous maneuver for a short time (e.g., a maneuver within 5 seconds) and a continuous, specified input current level maneuver (e.g., 6 maneuvers, in turn 1-5-4-2-1-4, i.e., a configuration identification sequence) to confirm the intent of the dimmer operator to switch light levels, enabling the adjustment of the three output configurations of table 1 in the same navigation light.
The specific process is as follows:
state 1:
when the current input current level (the output level of the dimmer) is not at the level 1, the navigation light outputs the corresponding light intensity level according to the current configuration according to the current input current level under the current configuration;
when the input current level is 1 level, the software starts to judge in real time, outputs the light intensity of the 1 level according to the current configuration and waits for the data of the next input current level;
state 2:
if the next input current level is not 5 levels within 5 seconds, outputting the corresponding light intensity level according to the current configuration according to the current input current level when the navigation light is under the current configuration; and back to state 1;
if the next input current level is 5 levels within 5 seconds, outputting the 5-level light intensity according to the current configuration, and entering a state 3;
state 3:
if no input current level changes within 5 seconds or the next input current level is not 4, no processing is performed, the output of the corresponding light intensity level is performed according to the current configuration, and the state is returned to the state 1;
if the next input current level is 4 levels within 5 seconds, outputting the 4-level light intensity according to the current configuration; entering a state 4;
and 4:
the software restarts timing and waits for the data of the next input current level;
if no input current level changes within 5 seconds or the next input current level is not 2 levels, no processing is performed, the output of the corresponding light intensity level is performed according to the current configuration, and the state is returned to the state 1;
if the next input current level is 2 within 5 seconds, outputting the 2-level light intensity according to the current configuration, and entering a state 5;
and state 5:
the software restarts timing and waits for the data of the next input current level;
if no input current level changes within 5 seconds or the next input current level is not 1 level, no processing is performed, the output of the corresponding light intensity level is performed according to the current configuration, and the state is returned to the state 1;
if the next input current level is 1 level within 5 seconds, outputting the light intensity of the 1 level according to the current configuration, and entering a state 6;
and 6:
the software restarts timing and waits for the data of the next input current level;
if no input current level changes within 5 seconds or the next input current level is not 4 levels, no processing is performed, the output of the corresponding light intensity level is performed according to the current configuration, and the state is returned to the state 1;
and if the next input current level is 4 levels within 5 seconds, outputting the light intensity of 4 levels according to the current configuration, and entering a state 7.
And state 7:
the software restarts timing and waits for the data of the next input current level;
if there is no input current level change within 5 seconds or when the next input current level is not one of 1/2/3 levels, disregarding, performing output of the corresponding light intensity level according to the current configuration, and returning to state 1;
if the next input current level is one of 1/2/3 levels within 5 seconds, switching the current configuration to the corresponding configuration 1/configuration 2/configuration 3, storing the changed configuration in a local memory, returning to the state 1, and repeating the steps;
in a specific use process, the configuration adjustment instruction is confirmed through the 6 times of input current adjustment changes, and the operation is equivalent to the operation according to the working mode of the common navigation light under the current configuration when the 6 times of input current adjustment processes are not detected.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (7)
1. A navigation light intensity output grade configuration switching system is characterized by comprising a light intensity configuration storage device arranged in a navigation light;
the light intensity configuration storage device is internally stored with a plurality of light intensity configuration grade data, and the light intensity configuration grade data correspond to light intensity output parameters of the navigation lamp under different functional requirements;
the system also comprises a code storage device, wherein a configuration identification sequence is stored in the code storage device; the configuration identification sequence consists of a plurality of input current grade codes in fixed sequence; the input current grade code corresponds to the grade of the input current; configuring the identification sequence or configuring the segment of the identification sequence to form a specific light intensity configuration grade code;
the device also comprises an input current grade recording device, wherein the input current grade recording device is used for acquiring the size and change data of the input current and generating corresponding grade code information;
further comprising a processor configured to:
A. reading the generated grade code information based on an input current grade recording device to generate a real-time coding sequence or a real-time coding sequence segment;
B. comparing whether the real-time coding sequence or the real-time coding sequence segment is matched with the light intensity configuration grade code;
C. if the current light intensity configuration level is matched with the light intensity configuration level, adjusting the corresponding light intensity configuration level according to the matching result, and adjusting the output of the navigation light according to the light intensity output parameter corresponding to the current light intensity configuration level; if not, the current configuration is regarded as a general control signal, and the light intensity in the configuration is adjusted according to the change of the input current level.
2. The system of claim 1, wherein the processor is further configured to continuously read the information of the input current after determining the current light intensity configuration level, and continuously adjust the actual supply voltage of the lamp bead in real time according to the input current level and the current light intensity configuration level when the input current signal corresponding to the configuration identification sequence or the segment of the configuration identification sequence is not read.
3. The system of claim 2, wherein the at least one configuration identification sequence comprises a plurality of associable level codes, and the associable level codes are: the grade codes corresponding to the input current and the change data of the grade codes at specific positions in the configuration identification sequence meet the preset requirement;
the preset requirements are as follows: a specific input current level and chronological order, or a specific input current level and duration, or a specific input current level and frequency.
4. A method for switching the light intensity output grade configuration of a navigation light is characterized by comprising the following steps;
step A, a step for determining a plurality of different light intensity configuration grades of the navigation lights and light intensity configuration grade data; wherein:
the light intensity configuration grade comprises a plurality of different light intensity output grades, the light intensity output parameters are divided into a plurality of light intensity output parameters from low to high, and the total number of the light intensity output parameters corresponds to the total number of the adjustable grades of the input current or is less than the total number of the grades of the input current; the light intensity output parameters are matched with the adjustable grade sequence of the input current according to the magnitude sequence of the output light intensity;
the light intensity configuration grade data comprise specific output parameters of the navigation light bulb under the corresponding light intensity output grade;
step B, generating and storing configuration identification sequences: the configuration identification sequence comprises at least one set of known input current level code sequences; the configuration identification sequence is stored in a code storage device;
step C, recording and storing the grade and change data of the input current; the method specifically comprises the following steps:
after the navigation lamp is started, sequentially screening and recording the magnitude of input current and change data for a plurality of times according to a preset screening rule, if the screening rule is met, continuously receiving enough data to form grade code information, and if the screening rule is not met, ignoring corresponding data and repeatedly obtaining new data for screening;
and D, generating a real-time coding sequence or a real-time coding sequence segment based on the grade code information, and adjusting the output configuration of the navigation light according to the coding sequence or the real-time coding sequence segment.
5. The method according to claim 4, wherein the predetermined filtering rule is a fixed period T after the device is turned on0On the basis that the acquisition duration is shorter than T0First n input current levels { I) occurring periodically and continuouslyi}；
If the first n input current levels { IiAnd corresponding input current level duration period tiIf the preset arrangement sequence and the preset duration are met, the configuration switching task is considered to be started, and the subsequent input current grade I is continuously acquiredi+jAnd a duration period; and according to the first n + j input current levels Ii+jGenerating a corresponding configuration identification sequence, and performing trusted light intensity configuration switching operation according to the specific configuration identification sequence;
n is not less than 2, i is 1, 2 and 3. Fixed period T0Is a time much shorter than the lowest duty cycle at each input current level when the navigation light is operating normally.
6. The method as claimed in claim 4, wherein the predetermined filtering rule is a fixed period sequence { T } after the device is turned onrOn the basis, acquiring the input current duration time according with the period sequence (T)rThe first r times input current level of { I }r}；
If there is a change in input current that satisfies a predetermined sequence and duration IrAnd if the current level I is higher than the preset value, the configuration switching task is started, and the subsequent input current level I is continuously acquiredr+jAnd a duration period; according to the frontr + j input current levels Ir+jGenerating a corresponding configuration identification sequence, and performing trusted light intensity configuration switching operation according to the specific configuration identification sequence or segment;
wherein r is more than or equal to 2, and j is 0 or a positive integer; periodic sequence { TrAnd any period in the current-limiting circuit is far shorter than the time of the lowest working period of each input current level when the navigation light operates normally.
7. The method for switching the light intensity output level configuration of the navigation light according to claim 5 or 6, wherein the configuration identification sequence is defined with a plurality of flag bits;
the flag bits comprise a wakeup bit K and a plurality of continuous confirmation bits { Mm } according to the front-back sequence; wherein m1, 2, 3 and adjacent validation bit elements are different;
the wake-up bit and the confirm bit correspond to known input currents with duration time according with a preset screening rule; the acknowledge bit M1 is different from the wake-up bit K, and the adjacent acknowledge bits Mu and M (u +1) are different;
if the current input current L0 is detected to be matched with the awakening position K, triggering an input current record, and waiting for a next input current change signal L1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
if the L1 is matched with the M1, continuing to wait for the next input current input signal change L2, and performing configuration adjustment or light intensity output adjustment according to a preset configuration by using a configuration identification sequence formed by M1 or K + M1; otherwise, only under the current light intensity configuration grade, carrying out light intensity adjustment in configuration according to the current input current grade, discarding the recorded data and restarting detection;
if the matching of the Lt and the Mt is detected, continuing waiting for the next input current input signal change L (t +1), and performing configuration adjustment or light intensity output adjustment by using a configuration identification sequence or a segment thereof formed by the Mt or K + M1+ M1+. Mt according to a preset configuration; otherwise, only under the current light intensity configuration grade, the light intensity in the configuration is adjusted according to the current input current grade, and the recorded data is discarded to restart the detection.
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