An airport navigation light wiring control cabinet based on smart grid

Abstract

This invention relates to the field of electrical equipment cabinet technology, and discloses an airport navigation lighting wiring control cabinet based on a smart grid. The cabinet includes a main frame and multiple sets of navigation lighting series circuits. The main control unit and a combination transfer switch are electrically connected. The combination transfer switch is used to switch between standby and measurement states for the multiple sets of navigation lighting series circuits. A DC resistance detection unit is used for DC resistance testing of the navigation lighting series circuits, and an insulation resistance detection unit is used for insulation resistance testing of the navigation lighting series circuits. This airport navigation lighting wiring control cabinet can achieve rapid switching and high-speed detection of multiple navigation lighting series circuits. It can detect circuit insulation and DC resistance, archive and analyze historical data, predict circuit status, and switch between lighting circuits and emergency dimmers. It replaces traditional, cumbersome testing methods, efficiently completes circuit maintenance, and ensures airport navigation safety.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment cabinet technology, specifically to an airport navigation lighting wiring control cabinet based on a smart grid. Background Technology

[0002] Currently, the number of navigational lighting dimmers deployed at civil and military airports varies: approximately 10-50 for small airports, around 200 for medium-sized airports, and around 400 for large airports. Currently, this system only supports one dimmer corresponding to one series circuit. Due to the special AC series power supply method, the entire circuit is suspended above ground. The more lamps in the series circuit and the higher the light level, the higher the voltage, reaching a maximum of 4500V (AC). When checking the circuit status (circuit insulation and DC resistance) for this power supply method, the following points must be met: First, completely disconnect the power to the equipment; Second, completely separate the dimmer from the circuit; Third, check the circuit status using independent instruments; With the rapid development of civil aviation and military aviation, and the increase in flight traffic, the time for maintaining equipment is gradually shortening, resulting in many lighting series circuits operating with defects, which poses many hidden dangers to navigation safety.

[0003] Existing technology discloses an easy-to-wire electrical control cabinet (application number CN201911393699.1), which includes a cabinet body and a wiring panel. Two sliding guide rails are spaced apart on both the top and bottom plates inside the cabinet. The wiring panel is connected to the cabinet body via these sliding guide rails. A sliding door is provided on the front side of the cabinet body. By making the cabinet door a sliding door and using gear meshing to bring out the wiring panel inside the control cabinet, wiring and subsequent maintenance are facilitated, improving work efficiency.

[0004] However, existing technologies, especially this particular solution, still have the following problems: The electrical control cabinets in the existing technology only make structural improvements to facilitate wiring for general electrical control scenarios. They are not adapted to the high-voltage working characteristics of the series circuits of airport navigation lights, and there is no hardware configuration design for one-to-one independent control of multiple circuits. When applied to airport navigation light systems, they are prone to mutual interference between circuits, low control accuracy, and cannot meet the independent control requirements of multiple series circuits of airport navigation lights. Existing control cabinets lack integrated dedicated testing units for DC resistance and insulation resistance, and have not constructed electrical control links adapted to airport navigation light testing. They only have basic wiring and on / off control functions, and cannot directly complete the DC resistance and insulation resistance testing of airport navigation light series circuits. They require additional independent testing instruments, which is cumbersome to operate and increases the cost of airport equipment investment. Summary of the Invention

[0005] The purpose of this invention is to provide a technical solution to address the problems in the prior art mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An airport navigation lighting wiring control cabinet based on a smart grid includes: a main cabinet frame and multiple sets of navigation lighting series circuits; The series circuit of multiple navigation lights includes a main control unit, a combination changeover switch, a changeover switch, a high-voltage switch body, and a conventional dimmer. The main control unit and the combination changeover switch are electrically connected. The high-voltage switch body, the changeover switch, and the conventional dimmer are arranged in multiple sets and correspond one-to-one. The main control unit is electrically connected to the combined changeover switch, and the combined changeover switch is electrically connected to the multiple sets of changeover switches. The main control unit includes a component mounting plate, which integrates a DC resistance detection unit, an insulation resistance detection unit, a vacuum relay, a module power supply, a main control board, and an I / O board. The main control board is used to control the DC resistance detection unit and the insulation resistance detection unit. The combined changeover switch is used to switch between standby and measurement states for multiple sets of navigation light series circuits. The DC resistance detection unit is used for DC resistance testing of the navigation light series circuits, and the insulation resistance detection unit is used for insulation resistance testing of the navigation light series circuits.

[0007] Preferably, the main cabinet frame is also equipped with a high-voltage switch body front terminal block and a combined transfer switch mounting base plate. The high-voltage switch body front terminal block is used for the electrical installation of multiple high-voltage switch bodies, and the combined transfer switch mounting base plate is used for the electrical installation of multiple transfer switches.

[0008] Preferably, the DC resistance detection unit, the insulation resistance detection unit, and the combined transfer switch are electrically connected. The switching states of the combined transfer switch include standby state and measurement state. The measurement state includes DC resistance test state and insulation test state.

[0009] Preferably, in standby mode, the power supply can be switched between the regular dimmer and the emergency dimmer, and in measurement mode, the connection between the navigation light series circuit and the detection unit can be switched.

[0010] Preferably, when the conventional dimmer is turned on, the switch cabinet display screen shows the current of the circuit corresponding to the conventional dimmer, and the displayed current is consistent with the current corresponding to the conventional dimmer being turned on.

[0011] Preferably, it also includes an emergency dimmer and multiple outdoor lighting circuits. The emergency dimmer is electrically connected to the combination changeover switch. When the wiring control cabinet no longer performs insulation resistance testing and DC resistance testing on the circuit, the emergency dimmer is directly electrically connected to one of the multiple outdoor lighting circuits.

[0012] Preferably, each high-voltage switch body is equipped with a current sampling device. The detection data of the current sampling is transmitted to the main control board and displayed in real time through a display screen electrically connected to the main control board.

[0013] Preferably, it also includes a display screen and indicator lights, both of which are electrically connected to the main control board. The main control board is also used to archive and analyze the detection data of the DC resistance detection unit and the insulation resistance detection unit, and to predict and warn the operating status of the navigation lights series circuit based on the analysis results. The warning information is displayed on the display screen and indicator lights.

[0014] Preferably, it also includes a mechanical interlocking device that works with all high-voltage switch bodies. The high-voltage switch bodies are detachably installed on the main cabinet frame. The high-voltage switch bodies are manual pull-out type multi-position structures with built-in mechanical locking structures. The mechanical interlocking device restricts the operation of only one set of high-voltage switch bodies at a time, while the remaining high-voltage switch bodies are in a mechanically locked state.

[0015] Preferably, the high-voltage switch body is provided with durable pure silver contacts; it also includes a grounding copper busbar and an insulating support column, wherein the grounding copper busbar is fixedly connected to the main cabinet frame through the insulating support column, and is equipped with a grounding clamp for use in conjunction with the grounding copper busbar.

[0016] Technical effects and advantages of the present invention: The airport navigation lighting wiring control cabinet based on a smart grid proposed in this invention has the following advantages compared with the prior art: This invention uses the main cabinet frame as the basic carrier, configuring multiple sets of navigation light series circuits, with high-voltage switch bodies, transfer switches, conventional dimmers, and circuits arranged in a one-to-one correspondence, forming the hardware foundation for independent control of each circuit. The main control unit integrates core components such as DC resistance and insulation resistance detection units and the main control board through a component mounting plate, constructing a hierarchical electrical control link of "main control board - combined transfer switch - multiple sets of transfer switches". With the main control board as the core control unit, it can directly control the DC resistance and insulation resistance detection units to perform circuit detection. The combined transfer switch serves as the core of state switching, realizing the switching between multi-circuit standby and measurement states. In conjunction with the single-circuit selection of the transfer switch and the circuit on / off control of the high-voltage switch body, it completes the detection of circuit DC resistance and insulation resistance in the measurement state, and the switching of circuit power supply in the standby state.

[0017] The corresponding hardware configuration enables independent control of a single navigation light series circuit, avoiding mutual interference between circuits and improving the accuracy of control and detection. The integrated design of the main control unit integrates detection and control components on the component mounting board, simplifying the overall structure of the equipment, reducing external components, and lowering the equipment failure points. The hierarchical electrical control link allows for direct and efficient transmission of control commands, improving the response speed of equipment detection and state switching, and adapting to the operation and maintenance needs of airport navigation lights. The combined transfer switch enables dual-state switching between standby and measurement, with one device performing both circuit detection and power supply switching functions, improving equipment utilization and reducing airport equipment investment. The main control board directly controls the dedicated test unit, which can accurately complete the DC resistance and insulation resistance detection of the navigation light series circuit, meeting the core requirements of basic state detection of airport circuits. Attached Figure Description

[0018] Figure 1 This is a circuit diagram of multiple sets of navigation lights connected in series inside the control cabinet of the present invention; Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the middle section structure; Figure 3 This is one of the schematic diagrams of the external structure of the airport navigation lighting wiring control cabinet in this invention; Figure 4 This is the second schematic diagram of the external structure of the airport navigation lighting wiring control cabinet in this invention; Figure 5 This is one of the schematic diagrams of the internal structure of the airport navigation lighting wiring control cabinet in this invention; Figure 6 This is the second schematic diagram of the internal structure of the airport navigation lighting wiring control cabinet in this invention; Figure 7 This is a schematic diagram of the high-voltage switch body in an embodiment of the present invention; Figure 8 This is a schematic diagram of the standby status and measurement status of the control cabinet in an embodiment of the present invention; Figure 9 This is a schematic diagram of the control cabinet's switch and display screen, etc., in an embodiment of the present invention.

[0019] In the picture: 1. Display screen; 2. Indicator lights; 3. Lower front door; 4. Printer; 5. Door handle; 6. Central lift-up door; 7. Front door lock; 8. Side door panel; 9. Lower front baffle; 10. Rear door lock; 11. Rear upper door; 12. Rear lower door; 13. Rear baffle 1; 14. High voltage switch body; 15. Changeover switch; 16. Combined changeover switch; 17. Front grounding copper busbar; 18. Communication module; 19. Surge arrester; 20. Circuit breaker; 21. Circuit breaker; 22. Front grounding clamp; 23. Second crossbeam; 24. First crossbeam; 25. L-shaped bracket; 26. Front support frame; 27. Third crossbeam; 28. Fourth crossbeam; 29. ​​Limiting slide; 30. High-voltage switch handle; 31. Main cabinet frame; 32. Front terminal block of high voltage switch body; 33. Mounting base plate of combination changeover switch; 34. DC resistance detection unit; 35. Insulation resistance detection unit; 36. Vacuum relay; 37. Module power supply; 38. Main control board; 39. I / O board; 40. Component mounting plate; 41. Horizontal beam five; 42. Horizontal beam six; 43. Horizontal beam seven; 44. Rear support; 45. Rear grounding copper busbar; 46. Rear baffle two; 47. Rear grounding clamp; 48. Signal interface; 49. Rear wiring terminal of high voltage switch body; 50. Horizontal beam eight; 51. Top cover; 52. Insulating support; 53. Front top door. Detailed Implementation

[0020] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0021] The invention provides, for example Figures 1 to 9 As shown, an airport navigation lighting wiring control cabinet based on a smart grid includes: Main cabinet frame 31 and multiple sets of navigation lights connected in series; The series circuit of multiple navigation lights includes a main control unit, a combination changeover switch 16, a changeover switch 15, a high-voltage switch body 14, and a conventional dimmer. The main control unit and the combination changeover switch 16 are electrically connected. The high-voltage switch body 14, the changeover switch 15, and the conventional dimmer are arranged in multiple sets and correspond one-to-one. The main control unit is electrically connected to the combined changeover switch 16, and the combined changeover switch 16 is electrically connected to the multiple sets of changeover switches 15. The main control unit includes a component mounting plate 40, on which a DC resistance detection unit 34, an insulation resistance detection unit 35, a vacuum relay 36, a module power supply 37, a main control board 38, and an I / O board 39 are integrated. The main control board 38 is used to control the DC resistance detection unit 34 and the insulation resistance detection unit 35. The combined changeover switch 16 is used to switch between the standby state and the measurement state of multiple sets of navigation light series circuits. The DC resistance detection unit 34 is used for DC resistance testing of the navigation light series circuits, and the insulation resistance detection unit 35 is used for insulation resistance testing of the navigation light series circuits.

[0022] Working Principle: This control cabinet uses the main cabinet frame 31 as the basic carrier, and is configured with multiple sets of navigation light series circuits. The high-voltage switch body 14, the changeover switch 15, and the conventional dimmer are set one-to-one with the circuits, forming the hardware foundation for independent control of a single circuit. The main control unit integrates core components such as DC resistance and insulation resistance detection units 35 and the main control board 38 through the component mounting plate 40, and constructs a hierarchical electrical control link of "main control board 38 - combined changeover switch 16 - multiple sets of changeover switches 15". The main control board 38 is the core control unit, which can directly control the DC resistance and insulation resistance detection units 35 to perform circuit detection. The combined changeover switch 16 is the core of the state switching, realizing the switching between multi-circuit standby and measurement states. With the single-circuit selection of the changeover switch 15 and the circuit on / off control of the high-voltage switch body 14, it completes the detection of circuit DC resistance and insulation resistance in the measurement state, and the switching of circuit power supply in the standby state.

[0023] The corresponding hardware configuration is designed to enable independent control of a single navigation light series circuit, avoiding mutual interference between circuits and improving the accuracy of control and detection. The integrated design of the main control unit integrates detection and control components on the component mounting plate 40, simplifying the overall structure of the equipment, reducing external components, and lowering the equipment failure points. The hierarchical electrical control link enables direct and efficient transmission of control commands, improving the response speed of equipment detection and state switching, and adapting to the operation and maintenance needs of airport navigation lights. The combined transfer switch 16 realizes dual-state switching of standby and measurement, with one device performing both circuit detection and power supply switching functions, improving equipment utilization and reducing airport equipment investment. The main control board 38 directly controls the dedicated test unit, which can accurately complete the DC resistance and insulation resistance detection of the navigation light series circuit, meeting the core requirements of basic state detection of airport circuits.

[0024] like Figure 5 As shown, the main cabinet frame 31 is also equipped with a high-voltage switch body front terminal block 32 and a combination changeover switch mounting base plate 33. The high-voltage switch body front terminal block 32 is used for the electrical installation of multiple high-voltage switch bodies 14, and the combination changeover switch mounting base plate 33 is used for the electrical installation of multiple changeover switches 15.

[0025] like Figure 2 As shown, the DC resistance detection unit 34, the insulation resistance detection unit 35 and the combined transfer switch 16 are electrically connected. The switching states of the combined transfer switch 16 include standby state and measurement state. The measurement state includes DC resistance test state and insulation detection state.

[0026] Regarding the standby and measurement states of the control cabinet, in standby state, power supply switching between the regular dimmer and the emergency dimmer can be performed. In measurement state, connection switching between the navigation light series circuit and the detection unit can be performed. When the regular dimmer is turned on, the current display on the switching cabinet display screen 1 shows the current of the circuit corresponding to the regular dimmer, and the displayed current is consistent with the current corresponding to the regular dimmer being turned on.

[0027] like Figure 1 As shown, it also includes an emergency dimmer and multiple outdoor lighting circuits. The emergency dimmer is electrically connected to the combination changeover switch 16. When the wiring control cabinet no longer performs insulation resistance testing and DC resistance testing on the circuit, the emergency dimmer is directly electrically connected to one of the multiple outdoor lighting circuits.

[0028] like Figure 2 As shown, each high-voltage switch body 14 is equipped with a current sampling device. The detection data of the current sampling is transmitted to the main control board 38 and displayed in real time through the display screen 1 electrically connected to the main control board 38.

[0029] Specifically, to display the real-time status, a display screen 1 and indicator lights 2 are included, both of which are electrically connected to the main control board 38. The main control board 38 is also used for historical archiving and analysis of the detection data from the DC resistance detection unit 34 and the insulation resistance detection unit 35, and for predicting and issuing warnings about the operating status of the navigation lights series circuit based on the analysis results. Warning information is displayed on the display screen 1 and indicator lights 2. A mechanical interlock device is also included that works with all high-voltage switch bodies 14. The high-voltage switch bodies 14 are detachably mounted on the main cabinet frame 31. Each high-voltage switch body 14 is a manual pull-out type with a button and a built-in mechanical locking structure. The mechanical interlock device restricts the operation of only one set of high-voltage switch bodies 14 at a time, while the remaining high-voltage switch bodies 14 are mechanically locked. The high-voltage switch body 14 is equipped with durable pure silver contacts; it also includes a grounding copper busbar and an insulating support 52. The grounding copper busbar is fixedly connected to the main cabinet frame 31 through the insulating support 52, and is equipped with a grounding clamp for use with the grounding copper busbar.

[0030] like Figure 5 and Figure 6As shown, regarding the specific installation structure inside the main cabinet frame 31, the main cabinet frame 31, top cover 51, front upper door 53, middle flip door 6, front lower door 3, side door panel 8, front lower baffle 9, front support frame 26, rear upper door 11, rear lower door 12, rear baffle one 13, rear baffle two 46, and rear support 44 are all made of 1.5mm thick stainless steel plate by bending and welding; crossbeam one 24, crossbeam two 23, crossbeam three 27, crossbeam four 28, crossbeam five 41, crossbeam six 42, crossbeam seven 43, L-shaped bracket 25, combination changeover switch mounting base plate 33, and component mounting plate 40 are all made of 1.5mm thick stainless steel plate by bending and welding. The front upper door 53 is equipped with a display screen 1, indicator light 2, and printer 4, and is fixed by its own matching fastening method; the front upper door 53 is mounted on the main cabinet frame 31, and the middle flip door 6 is equipped with a door handle 5, which is fastened by screws; the middle flip door 6 is mounted on the main cabinet frame 31 and is fixed by a support rod rotating arm and screws; the front lower door 3 and the rear upper door 11 are equipped with door locks and are mounted on the main cabinet frame 31, and are fixed by hinges; the front lower door 3 is equipped with a front door lock 7, and the rear upper door 11 is equipped with a rear door lock 10; the front lower baffle 9 and the rear lower baffle are mounted on the main cabinet frame 31 by a snap-fit ​​connection; The rear lower door 12, crossbeam 3 27, crossbeam 4 28, crossbeam 5 41, crossbeam 6 42, crossbeam 7 43, crossbeam 8 50, and L-shaped bracket 25 are installed on the main cabinet frame 31 and fastened with screws; crossbeam 1 24, crossbeam 2 23, the mounting base plate of the combination changeover switch 16, and the limit slide 29 are installed on the L-shaped bracket 25 and fastened with screws; the combination changeover switch 16 is mounted on the mounting base plate 33 and fastened with screws; the communication module 18, surge arrester 19, circuit breaker 20, and air switch 21 are mounted on the crossbeam 2 23 and installed via guide rails; the changeover switch 15 is installed on the crossbeam 3 27 and fastened with screws; the component mounting plate 40 is installed on the crossbeam 7 43 and fastened with screws. The component mounting plate 40 is equipped with a DC resistance detection unit 34, an insulation resistance detection unit 35, a vacuum relay 36, a module power supply 37, a main control board 38, and an I / O board 39, which are fastened with screws; the front grounding clip 22 and the rear grounding clip 47 are mounted on the crossbeam 41 and fastened with screws; the front support beam and the rear support beam 44 are mounted on the main cabinet frame 31 and fastened with screws; the front grounding copper busbar 17 and the rear grounding copper busbar 45 are fastened to the main cabinet frame 31 with screws through the insulating support 52; The high-voltage switch body 14 is installed between the fourth crossbeam 28 and the seventh crossbeam 43, and is clamped and secured by screws; each set of high-voltage switch bodies 14 is provided with a high-voltage switch body handle 30 on its outer side, and each set of high-voltage switch bodies 14 is provided with a signal interface 48 and a high-voltage switch body rear wiring terminal 49.

[0031] It's important to know that a typical airport navigation lighting multi-circuit integrated switching cabinet consists of 16 series lighting circuits. Each series lighting circuit corresponds to a set of purely mechanical switching and high-speed detection devices, such as... Figure 3 As shown, for safe operation, a mechanical interlock device is employed, allowing only one light series circuit to be tested at a time. As the switching action occurs, the device monitors various circuit data in real time, providing reports or warnings via display screen 1. The entire process takes only twenty seconds. Compared to traditional methods, its advantages are: The testing efficiency is significantly improved. Traditional methods involve power outages, cable disconnection and reconnection, and instrument testing—a process that takes thirty minutes, requires three people working together, and limits the number of circuits that can be inspected per day to a maximum of four. However, our equipment requires only one operator, ensuring that testing is completed even during daily downtime. This greatly enhances safety.

[0032] The testing methods are diverse. Traditional methods can only measure circuit insulation and DC resistance. Our airport navigation lighting multi-circuit integrated switching cabinet, in addition to testing insulation and DC resistance, can analyze historical data on circuit insulation and DC resistance to predict and warn about circuit conditions.

[0033] Long lifespan, virtually maintenance-free. Traditional methods of frequent cable disassembly and reassembly can easily lead to secondary accidents such as loose bolts and broken cable ends. Our equipment addresses this issue with a simple pull-pull action; its internal pure silver contacts ensure it can withstand 100,000 cycles. Key components are integrally molded, waterproof, and corrosion-resistant. This not only reduces the workload of airport navigation lighting maintenance personnel but also significantly ensures the safe operation of the airport.

[0034] In summary, the present invention also has the following combined effects: This control cabinet uses the main cabinet frame 31 as its basic carrier. Multiple sets of high-voltage switch bodies 14, changeover switches 15 and navigation lights are arranged in a one-to-one correspondence. The main control unit integrates core components such as DC resistance detection unit 34, insulation resistance detection unit 35 and main control board 38 through component mounting plate 40, forming an electrical control link of "main control board 38 - combined changeover switch 16 - changeover switch 15". The front wiring terminal of high-voltage switch body 14 and the mounting base of combined changeover switch 16 provide dedicated electrical mounting foundations for high-voltage switch body 14 and changeover switch 15, respectively, realizing standardized assembly and electrical connection of each functional component.

[0035] The combination changeover switch 16 is the core state switching component, which can switch between standby and measurement working states. The measurement state can be further divided into DC resistance test and insulation detection sub-states. In the standby state, the power supply to the conventional dimmer and the emergency dimmer is switched. In the measurement state, the connection between the navigation light series circuit and the detection unit is switched. The changeover switch 15 works together to achieve precise selection of a single navigation light series circuit.

[0036] The high-voltage switch body 14 serves as the circuit switching actuator. It is a manual pull-out type multi-position structure with its own mechanical locking structure and a mechanical interlocking device, which restricts the operation of only one set of high-voltage switch bodies 14 at a time, while the remaining high-voltage switch bodies 14 are locked. Each set of high-voltage switch bodies 14 is equipped with current sampling. After the sampled data is transmitted to the main control board 38, it is displayed in real time through the display screen 1, which can accurately reflect the current status of the corresponding circuit after the conventional dimmer is turned on.

[0037] The main control board 38 is the core control and data processing unit of the equipment. On the one hand, it controls the DC resistance detection unit 34 and the insulation resistance detection unit 35 to complete the DC resistance and insulation resistance detection of the circuit. On the other hand, it archives and analyzes the detection data in history. Based on the data analysis results, it predicts and warns the operating status of the navigation light series circuit. The warning information and the operating status of the equipment are displayed on the display screen 1 and the indicator light 2 simultaneously. The equipment is equipped with a grounding copper busbar, an insulating support 52 and a grounding clamp. The grounding copper busbar is fixed to the main cabinet frame 31 through the insulating support 52 to form a high-voltage grounding protection system. The high-voltage switch body 14 has built-in pure silver contacts to ensure the stability and durability of the circuit switching.

[0038] The efficiency of circuit switching and testing is greatly improved: By combining the state switching of the combination changeover switch 16 and the purely mechanical pull-out operation of the high-voltage switch body 14, the cumbersome procedures such as power-off and cable disassembly in traditional testing are replaced, realizing the rapid switching and testing of the navigation lights series circuit. The operation can be completed by a single person, effectively shortening the circuit maintenance time and meeting the efficiency requirements of daily airport maintenance.

[0039] The detection and maintenance system is forward-looking and comprehensive: In addition to performing traditional circuit DC resistance and insulation resistance tests, the main control board 38 can archive and analyze the test data and predict and warn of circuit status, discover potential operational problems in advance, change the traditional mode of only being able to detect after the fact, reduce the situation of navigation lights series circuits operating with defects, and improve the stability of circuit operation.

[0040] The equipment boasts high operational and safety features: the mechanical interlock device and the mechanical locking structure of the high-voltage switch body 14 form a double protection, preventing the risk of misoperation from the hardware perspective when multiple circuits are operated simultaneously; the high-voltage grounding protection system composed of the grounding copper busbar, insulating support column 52, and grounding clamp is suitable for the high-voltage working environment of airport navigation lights, ensuring the safety of personnel and equipment operation; at the same time, it can quickly realize the power supply switching between conventional dimmers and emergency dimmers, ensuring the continuity of power supply to the field lighting circuit.

[0041] The equipment is highly durable and has low maintenance costs: the pure silver contacts built into the high-voltage switch body 14 enhance the durability of circuit switching and avoid component wear caused by frequent switching; the standardized assembly of each functional component of the equipment eliminates the need for frequent cable disassembly and assembly, effectively avoiding secondary accidents such as loose bolts and broken cable heads, and reducing the frequency of equipment maintenance and subsequent maintenance costs.

[0042] Accurate data acquisition and simplified operation and maintenance: The current sampling of each high-voltage switch body 14 can collect circuit current data in real time and accurately. The display screen 1 can accurately display the circuit current matched with the conventional dimmer. The detection data is traceable, providing a reliable basis for circuit fault diagnosis and daily maintenance. The equipment integrates circuit switching, detection, data display, status warning and other functions into one, without the need for additional independent detection instruments, which simplifies the operation and maintenance process and reduces the workload of airport maintenance personnel.

[0043] The airport navigation lighting wiring control cabinet of this application can realize rapid switching and high-speed detection of multiple navigation lighting series circuits. It can detect circuit insulation and DC resistance, archive and analyze historical data, predict circuit status, and switch between lighting circuits and emergency dimmers. It replaces the traditional cumbersome detection method, efficiently completes circuit maintenance, and ensures airport navigation safety.

[0044] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A smart grid-based airport navigation lighting wiring control cabinet, characterized in that, include: The main cabinet frame (31) and multiple sets of navigation lights connected in series; The series circuit of multiple navigation lights includes a main control unit, a combination switch (16), a switch (15), a high-voltage switch body (14), and a conventional dimmer. The main control unit and the combination switch (16) are electrically connected. The high-voltage switch body (14), the changeover switch (15), and the conventional dimmer are provided in multiple sets and are arranged in a one-to-one correspondence. The main control unit is electrically connected to the combined changeover switch (16), and the combined changeover switch (16) is electrically connected to the multiple sets of changeover switches (15). The main control unit includes a component mounting plate (40), on which a DC resistance detection unit (34), an insulation resistance detection unit (35), a vacuum relay (36), a module power supply (37), a main control board (38), and an I / O board (39) are integrated. The main control board (38) is used to control the DC resistance detection unit (34) and the insulation resistance detection unit (35). The combined changeover switch (16) is used to switch between the standby state and the measurement state of multiple sets of navigation lights series circuits. The DC resistance detection unit (34) is used for DC resistance testing of the navigation lights series circuits. The insulation resistance detection unit (35) is used for insulation resistance testing of the navigation lights series circuits.

2. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, The main cabinet frame (31) is also equipped with a high voltage switch body front terminal (32) and a combination changeover switch mounting base plate (33). The high voltage switch body front terminal (32) is used for the electrical installation of multiple high voltage switch bodies (14), and the combination changeover switch mounting base plate (33) is used for the electrical installation of multiple changeover switches (15).

3. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, The DC resistance detection unit (34), the insulation resistance detection unit (35), and the combined transfer switch (16) are electrically connected. The switching states of the combined transfer switch (16) include standby state and measurement state. The measurement state includes DC resistance test state and insulation detection state.

4. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, In standby mode, it can switch the power supply between the regular dimmer and the emergency dimmer; in measurement mode, it can switch the connection between the navigation light series circuit and the detection unit.

5. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, When the regular dimmer is turned on, the switch cabinet display screen shows the current of the circuit corresponding to the regular dimmer, and the displayed current is consistent with the current corresponding to the turn on of the regular dimmer.

6. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, It also includes an emergency dimmer and multiple outdoor lighting circuits. The emergency dimmer is electrically connected to the combination changeover switch (16). When the wiring control cabinet no longer performs insulation resistance testing and DC resistance testing on the circuit, the emergency dimmer is directly electrically connected to one of the multiple outdoor lighting circuits.

7. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, Each high-voltage switch body (14) is equipped with a current sampling device. The detection data of the current sampling device is transmitted to the main control board (38) and displayed in real time through a display screen electrically connected to the main control board (38).

8. The airport navigation lighting wiring control cabinet based on a smart grid according to claim 1, characterized in that, It also includes a display screen (1) and an indicator light (2), both of which are electrically connected to the main control board (38). The main control board (38) is also used to archive and analyze the detection data of the DC resistance detection unit (34) and the insulation resistance detection unit (35), and to predict and warn the operating status of the navigation lights series circuit based on the analysis results. The warning information is displayed on the display screen (1) and the indicator light (2).

9. A smart grid-based airport navigation lighting wiring control cabinet according to claim 1, characterized in that, It also includes a mechanical interlocking device that works with all high-voltage switch bodies (14). The high-voltage switch bodies (14) are detachably installed on the main cabinet frame (31). The high-voltage switch bodies (14) are manual pull-out type multi-position structure with a built-in mechanical locking structure. The mechanical interlocking device restricts only one set of high-voltage switch bodies (14) to position operation at a time, while the other high-voltage switch bodies (14) are in a mechanically locked state.

10. A smart grid-based airport navigation lighting wiring control cabinet according to claim 1, characterized in that, The high-voltage switch body (14) is equipped with durable pure silver contacts; it also includes a grounding copper busbar and an insulating support (52). The grounding copper busbar is fixedly connected to the main cabinet frame (31) through the insulating support, and is equipped with a grounding clamp for use with the grounding copper busbar.

Images