Power line communication synchronizer for airport navigation aid lamp

Abstract

The utility model relates to the technical field of airport aid-to-navigation lamp communication, and mainly relates to an airport aid-to-navigation lamp power line communication synchronizer, which comprises an aid-to-navigation lamp, the aid-to-navigation lamp comprises an aid-to-navigation lamp body and a control box, and a control module, a communication module, a synchronization module and an analysis module are fixedly installed in the control box. The control module is electrically connected with the communication module, the synchronization module and the analysis module; the communication module is used for realizing connection between a main control center of the navigation aid lamp and the navigation aid lamp so as to receive control data of the main control center; the synchronization module processes the control data to obtain peak data; the local correlation unit is used for processing the peak data to obtain frame header data; the analysis module is used for processing the frame header data and the control data to form a control instruction; the control module is used for controlling the navigation aid lamp body according to the control instruction. The method has the advantages that the frame header position in the control data of the main control center is accurately positioned, so that the effect of communication synchronization between each navigation aid lamp and the main control center is ensured.

Description

Technical Field

[0001] This application relates to the technical field of airport navigation light communication, and in particular to an airport navigation light power line communication synchronization device. Background Technology

[0002] Airport navigational aids are critical facilities for ensuring the safe and orderly operation of aircraft on the airport ground. The stability of their power line communication systems directly affects the synchronization and reliability of the lights. With the development of the aviation industry, airport navigational aids are gradually moving towards intelligence, requiring power lines to not only provide a stable power supply but also support efficient data transmission and intelligent control functions. However, the airport environment is complex and variable, with numerous sources of electromagnetic interference and the influence of natural disasters and physical factors such as lightning strikes, strong winds, and vibrations. This places higher demands on the anti-interference capabilities of power line communication systems.

[0003] To address these challenges, the industry typically employs various methods to improve the stability of power line communication. For example, frequency shift keying (FSK) modulation is used to achieve simple and low-cost communication; or orthogonal frequency division multiplexing (OFDM) technology is used to improve frequency utilization and resistance to multipath attenuation. However, existing technologies still fall short when dealing with the unique single-tone noise of airport power supplies. Especially in single-tone noise environments, traditional delay-related calculations are prone to frame header false detections, leading to communication synchronization failures. Summary of the Invention

[0004] To address the problem of communication synchronization failure caused by false detection of the frame header of communication signals during the use of airport navigation lights, this application provides an airport navigation light power line communication synchronization device.

[0005] This application provides an airport navigation light power line communication synchronization device, which adopts the following technical solution:

[0006] An airport navigation light power line communication synchronization device includes at least one navigation light fixture. Each navigation light fixture includes a navigation light body and a control box detachably fixed below the navigation light body. The control box is fixedly installed with a control module, a communication module, a synchronization module, and a parsing module. The control module is electrically connected to the communication module, the synchronization module, and the parsing module, respectively. The communication module is used to establish a connection between the main control center of the navigation light fixture and each navigation light fixture to receive control data from the main control center. The synchronization module includes a delay correlation detection unit and a local correlation unit. The delay correlation detection unit is used to receive the control data and process the control data to obtain peak data. The local correlation unit is used to receive the peak data and process the peak data to obtain frame header data. The parsing module is used to receive the control data and the frame header data, and process the frame header data and the control data to form control commands. The control module is also electrically connected to the navigation light body to receive control commands and control the navigation light body according to the control commands.

[0007] By adopting the above technical solution, after receiving control data from the main control center, the communication module first determines the frame header data through the synchronization module, and then the parsing module combines the control data and the frame header data to determine the control command corresponding to the control data, thereby realizing the control of the navigation lights. In the process of determining the frame header data, the delay correlation detection unit first determines the first correlation data between the control data and the delay data, and then the local correlation unit processes the first correlation data to determine the corresponding frame header data. Combining the delay correlation detection unit and the local correlation unit to process the control data to determine the frame header data ensures the accuracy of the frame header data, thereby ensuring the communication synchronization between each navigation light and the main control center, and ensuring the safety of the aircraft.

[0008] Preferably, the control box is further equipped with an anti-interference module, which is connected to the communication module and is used to receive the control data and process the data to form a data packet; the delay correlation detection unit is used to receive the data packet and process the data packet to form peak data; the parsing module is used to process the data packet and the frame header data to form control commands.

[0009] By adopting the above technical solutions, the anti-interference module can effectively preprocess the received control data, filtering out single-tone noise and other interference signals, thereby improving the accuracy of subsequent data processing. The delay-related detection unit performs calculations based on the processed data packets, which can more accurately extract peak data and avoid false detection problems caused by noise. The parsing module combines data packets and frame header data to generate control commands, ensuring the reliability and accuracy of the control commands and improving the overall synchronization performance and stability of the airport navigation light power line communication system.

[0010] Preferably, the delay correlation detection unit includes a delay unit, a multiplier, an integrator, and a peak detector; the delay unit is used to process control data to form delay data; the multiplier is used to process the delay data and control data to form product data; the integrator is used to process the product data to obtain first correlation data; and the peak detector is used to process the first correlation data to obtain peak data.

[0011] By employing the above technical solution, the delay-correlation detection unit can accurately detect the peak position in the control data. Specifically, the delay unit processes the control data to generate delayed data, thus delaying the signal in time and facilitating subsequent calculations. The multiplier multiplies the delayed data point-by-point with the original control data to generate product data; this step is used to calculate the correlation of the signal. The integrator integrates the product data to obtain the first correlation data, further highlighting the correlation characteristics of the signal. Finally, the peak detector analyzes the first correlation data, accurately identifying and extracting the peak data, providing a crucial basis for determining the subsequent frame header position, improving the accuracy and reliability of frame header detection. Especially in the presence of single-tone noise interference, it can effectively reduce the false detection rate and ensure the stability of airport navigation light power line communication synchronization.

[0012] Preferably, the local correlation unit includes a local memory, a correlation calculator, a mean calculator, and a comparator; the local memory is used to store reference data consistent with the frame header data of the main control center; the correlation calculator is used to process the peak data and the reference data to form second correlation data; the mean calculator is used to process the second correlation data to form mean data; and the comparator is used to process the second correlation data and the mean data to form new Long March frame header data.

[0013] By adopting the above technical solution, the local correlation unit can significantly improve the accuracy of frame header detection. Specifically, the local memory stores reference data consistent with the frame header data of the main control center, ensuring the reliability of the baseline during the detection process; the correlation calculator processes the peak data and reference data to form second correlation data, further improving the detection accuracy; the mean calculator processes the second correlation data to form mean data, effectively reducing the impact of noise interference; the comparator determines the frame header data by processing the second correlation data and mean data, especially when the peak data is much larger than the mean data, it can accurately determine the frame header position, thereby significantly reducing the false detection rate and improving the system's anti-interference capability in single-tone noise environments.

[0014] Preferably, the anti-interference module includes a filter, a noise suppression circuit, and a signal enhancer; the filter is used to process the control data to form first filtered data; the noise suppression circuit is used to process the filtered data to form second filtered data; and the signal enhancer is used to process the second filtered data to form a data packet.

[0015] By adopting the above technical solutions, the filter can effectively filter out high-frequency noise in the control data and reduce the impact of external electromagnetic interference on signal transmission; the noise suppression circuit further suppresses noise at specific frequencies to improve the purity of the signal; and the signal amplifier amplifies the processed signal to ensure the integrity and reliability of the data packet, thereby significantly improving the anti-interference capability and synchronization accuracy of the airport navigation light power line communication system in complex environments.

[0016] Preferably, it also includes a signal transformer, which is electrically connected to the communication module.

[0017] By adopting the above technical solutions, voltage matching improves signal transmission efficiency and reduces signal reflection and loss caused by impedance mismatch; electrical isolation reduces the impact of external electromagnetic interference on the power line communication system of navigation lights, thereby ensuring reliable synchronization of airport navigation lights in complex electromagnetic environments; and the addition of a signal transformer enables voltage conversion and isolation of power line communication signals, effectively improving the stability and anti-interference capability of signal transmission.

[0018] Preferably, a positioning module is also fixedly installed inside the control box, and the positioning module is electrically connected to the control module.

[0019] By adopting the above technical solutions, the addition of the positioning module can achieve precise positioning of the navigation lights, improve the traceability of airport navigation lights in complex environments, and facilitate maintenance and troubleshooting; it can also provide spatial location data support for the main control center, which helps to achieve more refined lighting control and scheduling.

[0020] Preferably, the navigation light body includes an LED and a base. The LED is fixedly mounted on the base. The base has a first heat dissipation hole along the axial direction. A filter screen is fixedly installed in the first heat dissipation hole. A lamp cover is detachably and fixedly mounted on the base around the LED.

[0021] By adopting the above technical solution, the LED beads are fixedly installed on the base, ensuring the stability and reliability of the lamp. The ventilation holes effectively improve the heat dissipation performance of the LED beads, preventing damage or efficiency reduction due to overheating. The filter screen fixedly installed in the ventilation holes can prevent dust and impurities from entering the lamp while ensuring heat dissipation, thereby extending the lamp's lifespan. The detachable fixing method between the base and the lamp cover facilitates maintenance and cleaning of the lamp, improving ease of use.

[0022] Preferably, the lampshade includes an outer cover and an inner cover. The outer cover is provided with a heat dissipation protrusion, and a fourth heat dissipation hole is opened on the side of the heat dissipation protrusion near the base. The inner cover is provided with a fifth heat dissipation hole in the radial direction, and a mesh is fixedly installed between the fifth heat dissipation hole and the fourth heat dissipation hole.

[0023] By adopting the above technical solution, the heat dissipation protrusion on the outer cover can increase the contact area between the lamp cover and the external environment, thereby improving the heat dissipation effect. Furthermore, a fourth through hole is opened on the side of the heat dissipation protrusion near the base, and a fifth heat dissipation through hole is opened on the inner cover. The fourth and fifth heat dissipation through holes are interconnected to form a heat dissipation channel, thereby dissipating heat from the inside of the lamp cover. Since the fourth heat dissipation hole is opened on the side of the heat dissipation protrusion near the base, when the navigation lights are in use, the base is below the lamp beads. When there is no other external force, dust in the air will fall under the action of gravity and will not enter the fifth heat dissipation hole. If dust enters the fifth heat dissipation hole under the action of external force, the mesh can block the dust, thereby ensuring the cleanliness of the lamp beads and the inside of the lamp cover.

[0024] Preferably, a storage tube is detachably fixed on the control box. The storage tube includes an inner tube and an outer tube sleeved around the outer periphery of the inner tube. The inner tube has a second heat dissipation hole in the radial direction, and the outer tube has a third heat dissipation hole in the radial direction. The first heat dissipation hole, the second heat dissipation hole, and the third heat dissipation hole are interconnected to form a heat dissipation channel.

[0025] By adopting the above technical solution, the interior of the lampshade is connected to the inner cavity of the inner cylinder through the heat dissipation holes on the base, and then connected to the external environment through the second and third heat dissipation holes, thereby achieving air circulation between the interior and exterior of the lampshade to achieve a cooling effect on the interior of the lampshade. The design of the storage cylinder can prevent the first through hole from directly contacting the external environment. When dust enters the storage cylinder from the second and third heat dissipation holes under the action of external force, the storage cylinder isolates or reduces the action of external force, and the dust will fall under the action of centrifugation and will not enter the lampshade through the first heat dissipation hole, thereby extending the service life of the filter in the first heat dissipation hole.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By processing control data through the delay correlation detection unit and the local correlation unit, the frame header position can be effectively identified, significantly reducing the false detection rate in single-tone noise environment, thereby improving the synchronization accuracy and reliability of power line communication. The frame header position is determined by comparing the peak value with the mean value, which not only improves the accuracy of the judgment, but also avoids the misjudgment problem caused by simply relying on peak search in the traditional method, further enhancing the anti-interference capability of the system.

[0028] 2. By combining the filters, noise suppression circuits, and signal enhancers in the anti-interference module, the impact of electromagnetic interference and single-tone noise on signal transmission can be reduced in complex airport environments, ensuring the stability and data integrity of the communication system;

[0029] 3. With the storage tube, the adjusting rod on the base slides in the adjusting groove, which can change the position of the LED beads and lampshade in the storage tube. When not in use, the LED beads and lampshade can be stored in the storage tube. The operation is simple, convenient and quick, thus protecting the LED beads and lampshade. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the frame of the airport navigation light communication synchronization device in Embodiment 1 of this application;

[0031] Figure 2 This is a schematic diagram of the anti-interference module in Embodiment 1 of this application;

[0032] Figure 3 This is a schematic diagram of the delay correlation detection unit in Embodiment 1 of this application;

[0033] Figure 4 This is a schematic diagram of the local related units in Embodiment 1 of this application;

[0034] Figure 5 This is a structural diagram illustrating the overall structure in Embodiment 2 of this application;

[0035] Figure 6 This is a schematic diagram of the airport navigation light communication synchronization device in Embodiment 3 of this application;

[0036] Figure 7 This is a structural breakdown diagram of the main overall structure in Embodiment 3 of this application;

[0037] Figure 8 This is a split cross-sectional view of the main overall structure in Embodiment 3 of this application;

[0038] Figure 9 This is a cross-sectional schematic diagram of the main overall structure in Embodiment 3 of this application.

[0039] Reference numerals: 1. Control box; 11. Alarm; 2. Navigation light body; 21. Base; 211. Adjusting rod; 212. First heat dissipation hole; 213. Filter screen; 22. Lamp bead; 23. Lamp cover; 321. Outer cover; 2311. Heat dissipation protrusion; 2312. Fourth heat dissipation hole; 232. Inner cover; 2321. Fifth heat dissipation hole; 24. Mesh screen; 3. Storage tube; 31. Inner tube; 311. Adjustment groove; 3111. Vertical groove; 3112. Horizontal groove; 312. Second heat dissipation hole; 32. Outer tube; 321. Spiral groove; 322. Third heat dissipation hole. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will be described in further detail. Example 1

[0041] This application discloses an airport navigation light power line communication synchronization device.

[0042] Reference Figure 1 An airport navigation light power line communication synchronization device includes at least one navigation light fixture. Each navigation light fixture includes a navigation light body 2 and a control box 1 that is detachably fixed to the navigation light body 2. The control box 1 is fixedly installed with a signal transformer, a communication module, a control module, an anti-interference module, a synchronization module, and a parsing module to complete the communication synchronization between each navigation light and the main control center.

[0043] The control module communicates bidirectionally with each other's communication modules, anti-interference modules, synchronization modules, and parsing modules. The control module is also electrically connected to the navigation light body 2 to control the navigation light body 2. The control module may include a microcontroller or FPGA, a clock circuit, and a power management circuit. The microcontroller is used to control the coordinated operation of each module, the clock circuit is used to provide a clock signal to ensure that each module operates synchronously, and the power management circuit is used to provide a stable power supply to each module.

[0044] The input terminal of the signal transformer is electrically connected to the output terminal of the main control center of each navigation light to receive control data sent by the main control center and to perform impedance matching, voltage level conversion and other processing on the control data. The output terminal of the signal transformer is electrically connected to the input terminal of the communication module to transmit control data to the communication module.

[0045] The output of the control module is electrically connected to the input of the communication module, and the output of the control module is electrically connected to the input of the anti-interference module. After the control module controls the communication module to receive control data, it transmits the control data to the anti-interference module. In order for the anti-interference module to receive and process the anti-interference control data, the communication module processes the control data after receiving it so that the anti-interference module can process the control data.

[0046] Reference Figure 2 The anti-interference module processes the control signals to form data packets and feeds them back to the control module to improve the quality of the control data. Specifically, the anti-interference module includes a filter, a noise suppression circuit, and a signal amplifier. The filter filters the control data to remove single-tone noise, forming first filtered data. The noise suppression circuit suppresses noise at specific frequencies in the first filtered data, forming second filtered data. The signal amplifier amplifies the useful signal in the second filtered data to form data packets, enabling more accurate data extraction when processing and analyzing the control data packets.

[0047] Reference Figure 1 The input of the synchronization module is electrically connected to the output of the control module, so that the control module can transmit the data packets processed by the anti-interference module to the synchronization module. The synchronization module processes the control data to obtain the corresponding frame header data. Specifically, the synchronization module includes a delay correlation detection unit and a local correlation unit. The delay correlation detection unit and the local correlation unit process the data packets to determine the frame header position of the control data.

[0048] Reference Figure 3 The delay-correlation detection unit processes data packets to form peak data. This unit includes a delay unit, a multiplier, an integrator, and a peak detector. The delay unit processes the signals in the data packets to form delayed data. The multiplier multiplies the delayed data with control data to obtain the product data. The integrator integrates the multiplied data to obtain the first correlation data. The peak detector processes the first correlation data, iterates through it, and determines the maximum value to obtain the peak data. This provides a crucial basis for determining the subsequent frame header position, improving the accuracy and reliability of frame header detection. Especially in the presence of single-tone noise interference, it effectively reduces the false detection rate and ensures the stability of airport navigation light power line communication synchronization.

[0049] Reference Figure 4The local correlation unit includes a local memory, a correlation arithmetic unit, a mean calculator, and a comparator. The local memory is used to pre-store reference data that is consistent with the position of the control data frame header sent by the main control center. The correlation arithmetic unit is used to perform correlation calculations between the received peak data and the reference data to obtain second correlation data. The mean calculator is used to calculate the average value of the second correlation data to obtain mean data. The comparator is used to compare the peak data with the mean data to determine whether it is a valid frame header. In particular, when the peak data is much larger than the mean data, it can accurately determine the position of the frame header, thereby significantly reducing the false detection rate and improving the anti-interference capability of the system in a single-tone noise environment. Then the frame header data is sent to the control module, and the control module sends the frame header data and control data to the analysis module.

[0050] Reference Figure 1 The analysis module is used to determine the position of the frame header of the control data using the received frame header data. After the frame header position is determined, the data after the frame header position is extracted to determine the control command corresponding to the control data. The control command is then transmitted to the control module, which sends the control command to the navigation light body 2, thereby realizing the control of the navigation light body 2.

[0051] The implementation principle of this application embodiment is as follows:

[0052] During the use of airport navigation lights, the main control center sends control data to control the status of each navigation light. After the main control center sends the control data, the navigation lights receive the control data and adjust their working status based on the control data. After the main control center sends the control data, the signal transformer in the control box 1 of the navigation lights first processes the control signal and transmits it to the communication module. The communication module transmits the control signal to the control module, and the control module transmits the control data to the anti-interference module. The anti-interference module processes the control signal to form a data packet, and then transmits the data packet to the control module. The control module transmits the data packet to the synchronization module. The delay correlation detection unit and the local correlation unit in the synchronization module process the data packet to form the frame header position. Then, the analysis module uses the frame header position to analyze the control data to determine the control command corresponding to the control data. Then, the control module controls the LED beads 22 to display the working status corresponding to the control data.

[0053] After performing delay correlation and local correlation by the synchronization module, the frame header position in the control data is determined to improve the accuracy of the frame header position. Then, the control data is parsed based on the determined frame header position, thereby realizing the communication synchronization between the main control center and each navigation light. Example 2

[0054] Reference Figure 5Unlike Embodiment 1, the navigation light fixture includes a navigation light body 2 and a control box 1. The navigation light body 2 is detachably fixed to the control box 1. The navigation light body 2 includes an LED 22 and a base 21. The LED 22 is detachably fixed to the base 21 by means of embedding, snap-fit, threaded connection, etc. A lamp cover 23 is detachably fixed to the base 21 on the outer periphery of the LED 22. A first heat dissipation hole 212 is provided on the base 21, and a lamp is fixedly installed in the first heat dissipation hole 212. The filter 213 and the first heat dissipation hole 212 are located within the coverage area of ​​the lamp cover 23 of the base 21, thereby isolating the lamp beads 2222 from the external environment through the lamp cover 2323. The first heat dissipation hole 212 being located within the coverage area of ​​the lamp cover 23 allows air circulation between the inside of the lamp cover 23 and the external environment through the first heat dissipation hole 212, thereby achieving a cooling effect. The filter also prevents impurities from entering the lamp cover 23 through the first heat dissipation hole 212 and causing dirt to the lamp beads 22 and the lamp cover 23.

[0055] Reference Figure 5 The lampshade 23 includes an outer cover 321 and an inner cover 232. The outer cover 321 is provided with a heat dissipation protrusion 2311, which increases the contact area between the lampshade 23 and the external environment, thereby dissipating the heat generated by the lamp beads 22 during operation. A fourth heat dissipation hole 2312 is provided on the side of the heat dissipation protrusion 2311 near the base 21. A fifth heat dissipation hole 2321 is provided radially on the inner cover 232. The fourth heat dissipation hole 2312 and the fifth heat dissipation hole 2321 form a heat dissipation channel on the lampshade 23. A mesh 24 is fixedly installed between the outer cover 321 and the inner cover 232. The mesh 24 can be the same shape as the inner cover 232. It can be installed on the outer periphery of the inner cover 232, or it can be installed only at the location of the fourth heat dissipation hole 2312 and the fifth heat dissipation hole 2321. Furthermore, dust in the air will fall downwards due to gravity. The fourth heat dissipation hole 2312 of the heat dissipation protrusion 2311 is located on the lower side of the heat dissipation protrusion 2311. Therefore, under normal conditions, no dust will enter the lamp cover 23. Moreover, when an external force blows dust towards the location of the fifth heat dissipation hole 2321, the dust will also be blocked at the location of the mesh 24, thereby preventing dust from entering the lamp cover 23 and causing dirt on the lamp beads 22 and the inner wall of the lamp cover 23, thus affecting the normal use of the navigation light body 2.

[0056] The implementation principle of this application embodiment is as follows:

[0057] During the use of the navigation lights, control data is sent from the main control center to the control box 1. After the analysis module determines the corresponding control command based on the control data, the control module controls the LED beads 22 of the navigation lights to work. The heat generated by the LED beads 22 during operation can be dissipated into the air through the first heat dissipation hole 212 on the base. The heat dissipation protrusion 2311 on the outer cover 321 of the lamp cover 23 can also increase the contact area between the navigation light body 2 and the air. The fourth heat dissipation hole 2312 on the heat dissipation protrusion 2311 and the fifth heat dissipation hole 2321 on the inner cover 232 are interconnected to form a heat dissipation channel. During the operation of the navigation lights, the inside of the lamp cover 23 is connected to the external environment through the fourth heat dissipation hole 2312 and the fifth heat dissipation hole 2321, so that the air inside the lamp cover 23 is circulated with the external environment, thereby achieving the effect of cooling the LED beads 22 and ensuring the normal use of the navigation lights. Example 3

[0058] refer to Figure 6 Unlike Embodiment 2, a positioning module is also fixedly installed in the control box 1. The input end of the positioning module is electrically connected to the output end of the control module so that the working state of the positioning module can be controlled by the control module. The output end of the positioning module is electrically connected to the input end of the control module so that the positioning module can transmit the collected position information to the control module. The control module transmits the position information of the navigation lights to the main control center through the communication module so that the main control center can determine the position of each navigation light. When a navigation light malfunctions, the faulty navigation light can be quickly identified based on the position information so that the navigation light can be quickly repaired or replaced.

[0059] refer to Figure 8 and Figure 9A storage cylinder 3 is detachably fixed to the control box 1. The storage cylinder 3 includes an inner cylinder 31 and an outer cylinder 32 sleeved around the outer periphery of the inner cylinder 31. The outer cylinder 32 is rotatably mounted on the control box 1, and the inner cylinder 31 is fixedly mounted on the control box 1. A spiral groove 321 is formed on the side wall of the inner cylinder 31 along the axial direction of the inner cylinder 31. An adjustment groove 311 is formed on the inner cylinder 31 along the axial direction of the inner cylinder 31, and the adjustment groove 311 includes a horizontal groove 3112 and a vertical groove 3111. The horizontal groove 3112 is formed with the center of the vertical groove 3111. The horizontal slots 3112 are centrally symmetrically arranged at both ends of the vertical slot 3111. It's easy to imagine that multiple horizontal slots 3112 can be provided to adjust for different heights. An adjusting rod 211 is fixedly installed on the base 21 of the navigation light body 2. The adjusting rod 211 is slidably connected in the adjusting slot 311 and the spiral slot 321. By rotating the outer cylinder 32, the adjusting rod 211 moves up and down in the adjusting slot 311 under the action of the spiral slot 321, thereby allowing the lamp bead 22 and the lamp cover 23 to move up and down within the inner cavity of the inner cylinder 31. Furthermore, during the process of rotating the outer cylinder 32 to move the navigation light body 2 up and down within the inner cylinder 31, the navigation light does not rotate relative to the control box 1, thus ensuring that the control wire between the control module and the lamp bead 22 does not become entangled or rotated.

[0060] Reference Figure 8 and Figure 9 The base 21 has a first heat dissipation hole 212 along the axial direction, and the first heat dissipation hole 212 is located within the coverage area of ​​the lamp cover 23 of the base 21, thereby isolating the lamp bead 22 from the external environment through the lamp cover 23. The inner cylinder 31 has a second heat dissipation hole 312 along the radial direction, and the outer cylinder 32 has a third heat dissipation hole 322 along the radial direction. The first heat dissipation hole 212 enables communication between the lamp bead 22 and the inner cavity of the inner cylinder 31. That is, the first heat dissipation hole 212, the second heat dissipation hole 312, and the third heat dissipation hole 322 are interconnected to form a heat dissipation channel. The lamp cover 23 is connected to the external environment to allow air circulation, thereby dissipating heat from the lamp beads 22. In order to enable electrical connection between the control module and the lamp beads 22, the inner cavity of the inner cylinder 31 is connected to the inside of the control box 1, so that heat dissipation can also be achieved inside the control box 1 through the second heat dissipation hole 312 and the third heat dissipation hole 322. Furthermore, a filter screen 213 is fixedly installed in the first heat dissipation hole 212. The filter screen 213 can prevent impurities from entering the lamp cover 23, thereby keeping the surface of the lamp beads 22 and the inner wall of the lamp cover 23 clean.

[0061] The implementation principle of this application embodiment is as follows:

[0062] During operation, the modules and LEDs 22 within the control box 1 generate heat. Failure to dissipate heat promptly may affect the normal operation of the navigation lights. Before using the navigation lights, installation is completed. By rotating the outer cylinder 32, and with the cooperation of the spiral groove 321, adjusting groove 311, and adjusting rod 211, the LEDs 22 are moved out of the inner cylinder 31. The main control center sends control data to the navigation lights. After receiving the control data, the communication module sends it to the anti-interference module for processing, forming a data packet. The control module then sends the data packet to the synchronization module, which identifies the frame header data in the control data. Finally, the control module sends the control data and frame header data to the analysis module. The analysis module then analyzes the control data... The control data and frame header data are processed to obtain the control commands corresponding to the control data. Then, the control module controls the working state of the lamp bead 22 according to the control commands. During the operation of the lamp bead 22, heat is generated. The heat enters the inner cavity of the inner cylinder 31 through the first heat dissipation hole 212, and then flows out to the external environment through the second heat dissipation hole 312 and the third heat dissipation hole 322, thereby achieving heat dissipation of the lamp bead 22. The heat generated by each module in the control box 1 also flows out to the external environment through the second heat dissipation hole 312 and the third heat dissipation hole 322, thereby achieving heat dissipation inside the control box 1 to ensure the normal operation of the navigation lights.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power line communication synchronization device for airport navigation lights, characterized in that: It includes at least one navigation light fixture, each of the navigation lights fixtures includes a navigation light body (2) and a control box (1) detachably fixed on the navigation light body (2). The control box (1) is fixedly installed with a control module, a communication module, a synchronization module and a parsing module. The control module is electrically connected to the communication module, the synchronization module and the parsing module respectively. The communication module is used to establish a connection between the main control center of the navigation lights and each of the navigation lights, so as to receive control data from the main control center; The synchronization module includes a delay-related detection unit and a local correlation unit; the delay-related detection unit is used to receive the control data and process the control data to obtain peak data; the local correlation unit is used to receive the peak data and process the peak data to obtain frame header data. The parsing module is used to receive the control data and the frame header data, and process the frame header data and the control data to form control commands; The control module is also electrically connected to the navigation light body (2) for receiving control commands and controlling the navigation light body (2) according to the control commands.

2. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: An anti-interference module is also fixedly installed in the control box (1). The anti-interference module is connected to the communication module and is used to receive the control data and process the data to form a data packet. The delay correlation detection unit is used to receive the data packet and process the data packet to form peak data; The parsing module is used to process the data packets and the frame header data to form control commands.

3. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: The delay-related detection unit includes a delay unit, a multiplier, an integrator, and a peak detector; The delay unit is used to process control data to form delayed data; The multiplier is used to process the delayed data and control data to form a product data; The integrator is used to process the product data to obtain the first relevant data; The peak detector is used to process the first relevant data to obtain peak data.

4. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: The local correlation unit includes a local memory, a correlation arithmetic unit, a mean calculator, and a comparator; The local memory is used to store reference data that is consistent with the frame header data of the main control center; The correlation processor is used to process the peak data and reference data to form second correlation data; The mean calculator is used to process the second relevant data to form mean data; The comparator is used to process the second correlation data and mean data into new Long March frame header data.

5. The airport navigation light power line communication synchronization device according to claim 2, characterized in that: The anti-interference module includes a filter, a noise suppression circuit, and a signal amplifier; The filter is used to process the control data to form first filtered data; The noise suppression circuit is used to process the filtered data to form second filtered data; The signal enhancer is used to process the second filtered data to form a data packet.

6. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: A signal transformer is also fixedly installed in the control box (1), and the signal transformer is electrically connected to the communication module.

7. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: The control box (1) is also fixedly installed with a positioning module, which is electrically connected to the control module.

8. The airport navigation light power line communication synchronization device according to claim 1, characterized in that: The navigation light body (2) includes an LED (22) and a base (21). The LED (22) is detachably mounted on the base (21). The base (21) has a first heat dissipation hole (212) along the axial direction. A filter screen (213) is fixedly installed in the first heat dissipation hole (212). A lamp cover (23) is detachably and fixedly installed on the base (21) around the LED (22).

9. The airport navigation light power line communication synchronization device according to claim 8, characterized in that: The lampshade (23) includes an outer cover (321) and an inner cover (232). The outer cover (321) is provided with a heat dissipation protrusion (2311). The heat dissipation protrusion (2311) has a fourth heat dissipation hole (2312) on the side near the base (21). The inner cover (232) has a fifth heat dissipation hole (2321) in the radial direction. A mesh (24) is fixedly installed between the fifth heat dissipation hole (2321) and the fourth heat dissipation hole (2312).

10. The airport navigation light power line communication synchronization device according to claim 9, characterized in that: The control box (1) is detachably fixed with a storage tube (3). The storage tube (3) includes an inner tube (31) and an outer tube (32) sleeved on the outer periphery of the inner tube (31). The inner tube (31) has a second heat dissipation hole (312) in the radial direction, and the outer tube (32) has a third heat dissipation hole (322) in the radial direction. The first heat dissipation hole (212), the second heat dissipation hole (312) and the third heat dissipation hole (322) are interconnected to form a heat dissipation channel.

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