A fault detection system for marine aviation indicator lights

Abstract

The present invention relates to the technical field, and discloses a fault detection system for marine aviation indicator lights, including a single-chip microcomputer and a control circuit, the control circuit is electrically connected to the single-chip microcomputer, the control circuit is connected in series with a light strip, the control circuit includes a pin header and a power control chip, the PWM interface of the power control chip is connected to the third pin of the pin header, a resistor R2 is connected in series between the PWM interface of the power control chip and the third pin of the pin header, the VDD interface of the power control chip is connected to the first pin and the second pin of the pin header, and the interface is sequentially coupled in series with a light strip and an inductor L1, and is connected back to the DR interface of the power control chip; the output end of the light strip is connected to the fourth pin of the pin header, and is connected in series with a resistor R5. The present invention can realize real-time fault detection of the indicator light strip, and improve the fault detection efficiency. And according to the real-time voltage value detected at the output end, the specific fault type of the light strip can also be detected, and the accuracy of fault detection can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of lighting, in particular to a fault detection system for a marine aviation indicator light. Background Art

[0002] In marine aviation, when an aircraft returns to its destination, it is necessary to use the indicator lights on the ship to position the aircraft at the exact landing point to ensure safe landing of the carrier-based aircraft. At present, the fault detection of indicator lights is performed by maintenance personnel through visual inspection and multimeter. The detection method is single and inefficient. In addition, during the inspection, the light strip on the indicator light is generally inspected. If the power control chip on the indicator light fails and the light strip does not light up, it is difficult for the inspector to detect the correct fault type through the multimeter, which is not conducive to the rapid maintenance of the indicator light. Summary of the invention

[0003] To solve the above problems, the technical solution adopted by the present invention is:

[0004] A fault detection system for a marine aviation indicator light, comprising a single chip microcomputer and a control circuit, wherein the control circuit is electrically connected to the single chip microcomputer, a light strip is connected in series to the control circuit, and the control circuit is used to control the light strip and provide power to the light strip, and to detect faults and fault types of the light strip;

[0005] A control circuit includes a pin header and a power control chip, wherein a PWM interface of the power control chip is connected to a third pin of the pin header for data transmission and processing from a single chip microcomputer to the power control chip, a resistor R2 is connected in series between the PWM interface of the power control chip and the third pin of the pin header, a VDD interface of the power control chip is connected to a first pin and a second pin of the pin header for transmitting a voltage of 24V to the power control chip, and the interface is sequentially coupled in series with a light strip and an inductor L1, and is connected back to a DR interface of the power control chip;

[0006] The output end of the light strip is connected to the fourth pin of the pin header, and is connected in series with a resistor R5. The output end of the light strip has a certain voltage, and the single-chip microcomputer can obtain the voltage value of the output end through the fourth pin of the pin header. By comparing the voltage value with the preset threshold voltage, it can be determined whether the light strip has a fault, thereby realizing real-time fault detection of the indicator light strip and improving the fault detection efficiency. In addition, the specific fault type of the light strip can be detected according to the real-time voltage value detected at the output end, thereby improving the accuracy of fault detection.

[0007] Furthermore, the output end of the light strip is grounded through a diode D2. The VDD interface of the power control chip is connected in parallel with capacitors C1, C2 and C3, wherein capacitor C1 is connected in parallel with the VDD interface and then grounded, capacitor C2 and capacitor C3 are connected in parallel with the VDD interface and then grounded, and the output end of the inductor L1 is connected to the input end of the light strip through a diode D1.

[0008] When the light strip fails in the lights-off state, it is difficult to quickly and accurately detect the fault through traditional detection methods such as multimeters. When the light strip is turned off, capacitors C1, C2, C3 and inductor L1 have a certain energy storage function, which can release current and flow through the light strip, so that the output end of the light strip can generate a certain voltage value, which is preset as the threshold value in the lights-off state. If the voltage value of the output end of the light strip in the lights-off state detected by the microcontroller is different from the threshold voltage value, it indicates that the light strip fails in the lights-off state.

[0009] Furthermore, the single chip microcomputer is connected to a plurality of control circuits, and the light strips in different control circuits can be controlled and detected by one single chip microcomputer at the same time, thereby improving the detection efficiency.

[0010] Furthermore, the single chip microcomputer is connected to a plurality of groups of first resistors, LED lamps, diodes, and second resistors corresponding to a plurality of control circuits, wherein the first resistors, LED lamps, diodes, and second resistors of each group are sequentially connected in series and are also connected in series with an external voltage. A test point TEST TP is provided between the first resistor and the LED lamp, and the test point is connected to the PWM interface of the power control chip, the positive electrode of the diode is connected to the LED lamp, and the negative electrode is connected to the second resistor. During use, the power control chip may fail, resulting in the light strip not lighting up. The test point TEST TP is used to detect whether the power control chip fails, thereby improving the detection accuracy of the indicator light.

[0011] Furthermore, the single chip microcomputer is connected to a power supply module for providing current to the indicator light and the single chip microcomputer.

[0012] Furthermore, the power module is provided with a protection circuit, which includes a terminal, a first pin of the terminal is grounded, a second pin and a third pin of the terminal form a loop through a series-connected fuse F1 and a capacitor CX1, a resistor R1 and a ceramic discharge tube D1 are connected in parallel to the capacitor CX1, the resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the capacitor CX1, and the resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the resistor R2, the ceramic discharge tube D2 and the resistor R7, wherein the resistor R2, the ceramic discharge tube D2 and the resistor R7 are connected in series in sequence, and the ceramic discharge tube D2 is grounded.

[0013] Furthermore, the capacitor CX1 is connected in parallel with resistors R3 , R4 , R5 , and R6 for discharging the electricity stored in the capacitor CX1 when the power is off to prevent electric shock.

[0014] Furthermore, the second pin of the terminal block is connected to the AC (N) interface of the power module and is connected in series with an inductor; the third pin is connected to the AC (L) interface of the power module and is connected in series with an inductor, and the inductor is also connected in parallel with capacitors CX1, CY1 and CY2, wherein capacitors CX1, CY1 and CY2 are connected in series in sequence, and capacitors CY1 and CY2 are grounded.

[0015] Beneficial effects of the present invention:

[0016] 1. The microcontroller can obtain the voltage value of the output end through the fourth pin of the pin header, and compare the voltage value with the preset threshold voltage to determine whether the light strip has a fault, thereby realizing real-time fault detection of the indicator light strip and improving the fault detection efficiency. In addition, the specific fault type of the light strip can be detected according to the real-time voltage value detected at the output end, thereby improving the accuracy of fault detection.

[0017] 2. When the light strip is turned off, capacitors C1, C2, C3 and inductor L1 have a certain energy storage function, which can release current and flow through the light strip, so that the output end of the light strip can generate a certain voltage value. The voltage value is preset as the threshold value in the light-off state. If the voltage value at the output end of the light strip in the light-off state detected by the microcontroller is different from the threshold voltage value, it indicates that the light strip has a fault in the light-off state.

[0018] 3. During use, the power control chip may fail, causing the light strip to not light up. Use the test point TEST TP to detect whether the power control chip fails and improve the detection accuracy of the indicator light. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a schematic diagram of the control circuit structure of the present invention;

[0022] Figure 2It is a structural schematic diagram of the single chip microcomputer of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the power module and the protection circuit of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1-Figure 3 Shown

[0027] A fault detection system for a marine aviation indicator light comprises a single chip microcomputer and a control circuit, wherein the control circuit is electrically connected to the single chip microcomputer, a light strip is connected in series with the control circuit, the control circuit is used to control the light strip and provide power to the light strip, and the control circuit is also used to detect a fault of the light strip and the type of the fault;

[0028] Control circuit, including pin header and power control chip, such as Figure 1 and Figure 2 As shown, the pin header is welded on the circuit board of the single-chip microcomputer, the PWM interface of the power control chip is connected to the third pin of the pin header for data transmission and processing from the single-chip microcomputer to the power control chip, and a resistor R2 is connected in series between the PWM interface of the power control chip and the third pin of the pin header. The resistor R2 is used for overload protection of the PWM interface of the power control chip, which can limit the current flowing through the interface to prevent damage to the chip due to excessive current. In addition, R2 can also be used as a simple filter to reduce high-frequency noise and interference in the PWM signal, which helps to improve the stability and reliability of the signal. Specifically, R2 can be selected according to the actual needs of the chip. In this embodiment, R2 is 1 kilo ohm.

[0029] The VDD interface of the power control chip is connected to the first and second pins of the pin header to deliver a 24V voltage to the power control chip, and the interface is coupled in series with the light strip and the inductor L1 in sequence, and is connected back to the DR interface (data port docking port) of the power control chip to form a power-on loop for normal power supply of the light strip. The output end of the light strip is connected to the fourth pin of the pin header, and the output end has a certain voltage. The single-chip microcomputer can obtain the voltage value of the output end through the fourth pin of the pin header, and compare the voltage value with the preset threshold voltage to determine whether the light strip is faulty. In the present invention, the input voltage of the input end of the light strip is 24V, and a resistor R5 is connected in series on the output end. The resistance of R5 is 3.3 kilo-ohms, which can control the output voltage of the output end to 2.4V. A smaller voltage value is more conducive to the collection of protection circuits and voltage data, and avoids overload of the circuit due to excessive voltage. The preset threshold voltage is set to 2.4V. When the light strip is powered on and works normally, the voltage value at the output end of the light strip is the same as the set threshold voltage, which is 2.4V. When the light strip is powered on and a short circuit occurs, the voltage value at the output end of the light strip will be greater than the preset voltage value. When the light strip is powered on and a short circuit occurs, there is no voltage at the output end, that is, the voltage value at the output end is 0. The single-chip microcomputer can detect the fault of the light strip and the fault type according to the collected output voltage value. In order to avoid the output voltage at the output end being too large when the light strip is powered on and a short circuit occurs, causing overload damage to the circuit, the output end of the light strip is also grounded through a diode D2, where the cathode of the diode D2 is grounded, and the working value of the diode D2 is 2.7V. When the voltage is greater than 2.7V, the current can be directed to the ground to achieve circuit protection.

[0030] During use, the light strip may fail when the lights are off. If voltage is not supplied to the control circuit, it is difficult to detect that the light strip is damaged. In the present invention, in order to realize fault detection of the light strip when the lights are off, the output end of the inductor L1 is connected to the input end of the light strip through a diode D1. In addition, the VDD interface of the power control chip is also connected in parallel with capacitors C1, C2 and C3, wherein capacitor C1 is connected in parallel with the VDD interface and then grounded, capacitor C2 and capacitor C3 are connected in parallel with the VDD interface and then grounded, and capacitors C1, C2 and C3 are used to filter out clutter in the power supply to make the voltage smoother; the positive pole of the diode D1 is connected to the input end of the light strip, and the negative pole of the diode D1 is connected to the output end of the inductor L1. When the light strip is not powered on, that is, there is no When 24V voltage is input, when inductor L1 is powered on, the stored electric energy is released and forms a loop through diode D1 and the light strip. Capacitor C1, capacitor C2, capacitor C3 and inductor L1 have a certain energy storage function. When the light strip is turned off, that is, when 24V voltage is no longer input, capacitor C1, capacitor C2, capacitor C3 and inductor L1 release current and flow through the light strip, so that the output end of the light strip can generate a certain voltage value. The voltage value is preset as the threshold value in the light-off state. If the voltage value at the output end of the light strip in the light-off state detected by the microcontroller is different from the threshold voltage value, it indicates that the light strip has a fault in the light-off state.

[0031] During use, the power control chip may fail, causing the light strip to not light up. At this time, the output voltage of the light strip is 0. In order to improve the detection accuracy of the light strip, correctly detect the type of light strip that does not light up, and avoid confusing the power control chip failure with the light strip short circuit failure, a first resistor, an LED lamp, a diode, a second resistor, and an external voltage are connected in series on the single-chip computer, wherein the first resistor and the second resistor are used for circuit overload protection, and a test point TEST TP is provided between the first resistor and the LED lamp, which is connected to the PWM interface of the power control chip, the positive pole of the diode is connected to the LED lamp, and the negative pole is connected to the second resistor. When the power control chip does not fail, the power control chip can generate an output voltage to the test point TESTTP and balance it with the external voltage, so that there is no current between the LED lamps, and the LED lamps do not light up. When the power control chip fails, there is no voltage at the test point TEST TP, and the external voltage generates current through the LED lamp, and the LED lamp lights up; therefore, whether the power control chip fails can be detected by whether the LED lamp is on.

[0032] In the present invention, every two light strips of different colors, such as a green light strip and a yellow light strip, form a group of indicator lights, which are used to indicate that the aircraft is accurately hovering at the center of the ship landing point. Specifically, there are four groups of indicator lights, which are installed on the ship's wall up, down, left and right. When the aircraft is landing, the indicator lights are located directly in front of the aircraft, wherein the left and right indicator lights are used to indicate the left-right position relationship between the aircraft and the landing point, and the upper and lower indicator lights are used to indicate the front-back position relationship between the aircraft and the landing point. For example, when the aircraft is above the landing point, the existing detection device obtains the position information of the aircraft relative to the landing point, and then controls the four indicator lights to remind the driver, such as when the aircraft deviates to the left side of the landing point, the yellow light on the left is on, and the green lights of the other three indicator lights are on; when the aircraft deviates to the left rear of the landing point, the yellow lights of the left and lower indicator lights are on, and the green lights of the other two indicator lights are on; when the aircraft deviates to the left front of the landing point, the yellow lights of the left and upper indicator lights are on, and the green lights of the other two indicator lights are on; when the aircraft is facing the landing point, the green lights of the four indicator lights are on, indicating that the aircraft can land safely. In actual use, in order to improve the detection efficiency, multiple groups of indicator lights can be connected to a single chip microcomputer, and a suitable number of indicator lights can be connected according to actual needs and the model of the single chip microcomputer. Figure 2 As shown, the single-chip microcomputer uses a single-chip microcomputer of model STM32F103R, and is connected to eight groups of indicator lights, that is, it can simultaneously detect faults of the indicator lights on the two landing points on the ship. Specifically, eight groups of first resistors, LED lights, diodes and second resistors are connected to the single-chip microcomputer, wherein the first resistors are R17, R18, R19, R20, R21, R22, R26, and R27, and their resistance values ​​are 47 ohms, and the second resistors are R13, R14, R15, R16, R28, R29, R30, and R31, and their resistance values ​​are 1000 ohms. The maximum current in the circuit is controlled at 400mA through the first resistor and the second resistor, which is used to meet the working current of the LED lamp and perform overload protection. Test point TEST TP, including TP5~TP12, each test point is connected to a group of indicator lights in a one-to-one correspondence, and is connected to the PWM interfaces of the power control chips of the two light strips in the group of indicator lights in a one-to-one correspondence, specifically including PWM0~PWM7, and each group of LED lights is provided with two, including a main display LED light and a duplicate display LED light connected in parallel between the diode and the first resistor, the main display LED light is used to display whether the power control chip of the green light strip is faulty, and the duplicate display LED light is used to display whether the power control chip of the yellow light strip is faulty, and the main display LED light and the duplicate display LED light can be used to quickly and accurately determine that the power control chip of the light strip in the indicator light is faulty, thereby improving the fault detection efficiency.

[0033] In the present invention, the single-chip microcomputer is also connected to a power module. The power module model used is LD90-23BXXR2, which is used to provide current for the indicator light and the single-chip microcomputer. In actual use, the indicator light is mostly used on the deck of a ship, in the open air, etc. The use environment is complex and lightning strikes may damage the power module. In addition, during the landing of the aircraft, various electronic components on the aircraft will also generate certain electromagnetic interference to the power module. In order to ensure the normal operation of the power module and provide working current for the single-chip microcomputer and the indicator light, the power module is also provided with a protection circuit, such as Figure 3 As shown, the protection circuit includes a terminal block, which is welded on a circuit board of the single-chip microcomputer. The terminal block model is KF2 EDGVM-3P and has three pins, wherein the first pin is grounded to eliminate signal electromagnetic interference and improve the reliability and stability of the circuit. A circuit is formed between the second pin and the third pin through a series-connected fuse F1 and a capacitor CX1. A resistor R1 and a ceramic discharge tube D1 are connected in parallel to the capacitor CX1. The resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the capacitor CX1. The resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the capacitor CX1. The resistor R2, the ceramic discharge tube D2 and the resistor R7 are connected in series to the capacitor CX1. The resistor R2, the ceramic discharge tube D2 and the resistor R7 are connected in series in sequence, and the ceramic discharge tube D2 is grounded. The capacitor CX1 is connected in parallel to resistors R3, R4, R5 and R6, and the resistance values ​​of the resistors R3, R4, R5 and R6 are 1 million ohms. When the third pin is struck by lightning, as shown in FIG. Figure 3 As shown in FIG. 1 , the voltage of the third pin increases, a part of the current flows through the resistor R2 and the ceramic discharge tube D2 and then is directed to the ground, and the other part of the current flows through the resistor R1, the ceramic discharge tube D1, the resistor R7 and the ceramic discharge tube D2 and then is directed to the ground, thereby protecting the circuit; when the second pin is struck by lightning, as shown in FIG. Figure 3 As shown, the voltage of the second pin increases, a part of the current is directed to the ground after the resistor R7 and the ceramic discharge tube D2, and a part of the current flows through the ceramic discharge tube D1, the resistor R1, the resistor R2 and the ceramic discharge tube D2 and then is directed to the ground, thereby realizing the protection of the circuit; when the second pin and the third pin are struck by lightning at the same time, the voltage between the second pin and the third pin is the same, as shown in FIG. Figure 3 As shown, part of the current on the third pin flows through the resistor R2 and the ceramic discharge tube D2 and then is directed to the ground, and part of the current flows through the resistor R3 and the resistor R5 and then is stored in the capacitor CX1. Since the resistance values ​​of the resistors R3 and R5 are relatively large, the current of the third pin after being struck by lightning can also be effectively reduced. After the capacitor CX1 stores the excess current, the current flows through the resistor R7 and the ceramic discharge tube D2 and then is directed to the ground; the current on the second pin flows through the resistor R4, the resistor R6, the resistor R7 and the ceramic discharge tube D2 and then is directed to the ground. Since the resistance values ​​of the resistors R4 and R6 are relatively large, the current of the second pin after being struck by lightning can also be effectively reduced, thereby realizing circuit protection.

[0034] In the present invention, if Figure 3 As shown, the second pin of the terminal block is connected to the AC (N) interface of the power module and is connected in series with an inductor; the third pin is connected to the AC (L) interface of the power module and is connected in series with an inductor, and the inductor is also connected in parallel with capacitors CX1, CY1 and CY2, wherein capacitors CX1, CY1 and CY2 are connected in series in sequence, and capacitors CY1 and CY2 are grounded. When the power module is subject to electromagnetic interference, capacitors CX1, CY1 and CY2 can smooth voltage fluctuations by storing and releasing charges, thereby ensuring the stability of the power module and improving the anti-interference ability of the power module.

[0035] There are a few points to note:

[0036] (1) Unless otherwise defined, in the embodiments of the present disclosure and the accompanying drawings, the same reference numerals represent the same meanings.

[0037] (2) In the drawings of the embodiments of the present disclosure, only the structures related to the embodiments of the present disclosure are involved, and other structures can refer to the general design.

[0038] (3) For the sake of clarity, parts or regions are enlarged in the drawings used to describe the embodiments of the present disclosure. It is understood that when an element is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element, or there may be intervening elements.

[0039] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A fault detection system for a marine aviation indicator light, characterized in that: It includes a single chip microcomputer and a control circuit, wherein the control circuit is electrically connected to the single chip microcomputer, the control circuit is connected in series with a light strip, and the control circuit is used to control the light strip and provide power to the light strip, and to detect faults and fault types of the light strip; A control circuit includes a pin header and a power control chip, wherein a PWM interface of the power control chip is connected to a third pin of the pin header for data transmission and processing from a single chip microcomputer to the power control chip, a resistor R2 is connected in series between the PWM interface of the power control chip and the third pin of the pin header, a VDD interface of the power control chip is connected to a first pin and a second pin of the pin header for transmitting a voltage of 24V to the power control chip, and the interface is sequentially coupled in series with a light strip and an inductor L1, and is connected back to a DR interface of the power control chip; The output end of the light strip is connected to the fourth pin of the pin header and is connected in series with a resistor R5.

2. A fault detection system for a marine aviation indicator light according to claim 1, characterized in that: The output end of the light strip is grounded via a diode D2.

3. A fault detection system for a marine aviation indicator light according to claim 2, characterized in that: The VDD interface of the power control chip is connected in parallel with capacitors C1, C2 and C3, wherein capacitor C1 is connected in parallel with the VDD interface and then grounded, capacitor C2 and capacitor C3 are connected in parallel with the VDD interface and then grounded, and the output end of the inductor L1 is connected to the input end of the light strip through a diode D1.

4. A fault detection system for a marine aviation indicator light according to claim 3, characterized in that: The single chip microcomputer is connected with a plurality of control circuits.

5. A fault detection system for a marine aviation indicator light according to claim 4, characterized in that: The single chip microcomputer is connected to a plurality of groups of first resistors, LED lamps, diodes and second resistors corresponding to a plurality of control circuits, wherein the first resistor, LED lamp, diode and second resistor of each group are sequentially connected in series and are also connected in series with an external voltage. A test point TEST TP is provided between the first resistor and the LED lamp, and the test point is connected to the PWM interface of the power control chip, the positive electrode of the diode is connected to the LED lamp, and the negative electrode is connected to the second resistor.

6. A fault detection system for a marine aviation indicator light according to claim 5, characterized in that: The single chip microcomputer is connected to a power supply module for providing current to the indicator light and the single chip microcomputer.

7. A fault detection system for a marine aviation indicator light according to claim 6, characterized in that: The power module is provided with a protection circuit, which includes a wiring terminal, a first pin of the wiring terminal is grounded, a second pin and a third pin of the wiring terminal form a loop through a series-connected fuse F1 and a capacitor CX1, a resistor R1 and a ceramic discharge tube D1 are connected in parallel to the capacitor CX1, the resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the capacitor CX1, and the resistor R1 and the ceramic discharge tube D1 are connected in series and then connected in parallel to the resistor R2, the ceramic discharge tube D2 and the resistor R7, wherein the resistor R2, the ceramic discharge tube D2 and the resistor R7 are connected in series in sequence, and the ceramic discharge tube D2 is grounded.

8. A fault detection system for a marine aviation indicator light according to claim 7, characterized in that: The capacitor CX1 is connected in parallel with resistors R3, R4, R5 and R6, which are used to discharge the electricity stored in the capacitor CX1 when the power is off to prevent electric shock.

9. A fault detection system for a marine aviation indicator light according to claim 8, characterized in that: The second pin of the terminal block is connected to the AC (N) interface of the power module and is connected in series with an inductor; the third pin is connected to the AC (L) interface of the power module and is connected in series with an inductor, and the inductor is also connected in parallel with capacitors CX1, CY1 and CY2, wherein capacitors CX1, CY1 and CY2 are connected in series in sequence, and capacitors CY1 and CY2 are grounded.

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