Illuminating system for airport patrol vehicle

Abstract

The invention provides a lighting system for an airport patrol car, and belongs to the technical field of airport patrol lighting. A lighting system for an airport patrol car is characterized by comprising a high-position lighting unit, a low-position lighting unit, an auxiliary side lighting unit and a warning unit. The power supply module comprises power supply equipment and a start-stop power supply; the power supply equipment is electrically connected with the high-position lighting unit and the auxiliary side lighting unit; the control module comprises a PLC (Programmable Logic Controller), a control panel and a control terminal; and the PLC is electrically connected with the start-stop power supply. The PLC is in communication connection with the control terminal; and the PLC is electrically connected with the control panel. Compared with the prior art, multi-angle light of the high-position lighting unit, the low-position lighting unit and the auxiliary side lighting unit is adopted to jointly sweep a road surface, and the'moving slicing 'effect is formed; any abnormal highlight or dark spots can immediately attract the attention of track patrolling personnel, so that the time for finding scattered foreign matters on the runway, abnormal ground or invading animals is increased, and the time for subsequent treatment is gained.

Description

Technical Field

[0001] The present invention belongs to the technical field, and in particular relates to a lighting system for an airport patrol vehicle. Background Art

[0002] Airport runway patrol vehicles, besides aircraft, are the most active vehicles on the runways. They are primarily used for tasks such as site surveys, runway inspections, fog patrols, and runway inspections for special conditions. During inspections, they must inspect the runway for FOD (Foreign Object Debris)—materials, debris, or objects that could damage aircraft, such as metal parts, tarpaulins, gravel, newspapers, bottles, and luggage tags—as well as for caulking failure, cracks, proper wind scooping, clear markings, significant height differences between the runway and adjacent surfaces, weeds obscuring taxiway guide signs, and rubber settling in the runway touchdown zone. Any abnormalities detected require prompt action. This requires high levels of attention and observation from patrol personnel, and at night, effective lighting is essential for effective airport patrol work. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a lighting system for an airport patrol vehicle in view of the unreasonable design of the lighting system for the airport patrol vehicle in the prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A lighting system for an airport patrol vehicle, comprising: The high-position lighting unit is located on the top of the airport patrol vehicle and is used to illuminate the area in front of the vehicle; The low-position lighting unit is located at the front of the airport patrol vehicle and is used to provide key lighting for the far point in front of the vehicle and supplementary lighting for the near point in front of the vehicle; Auxiliary side lighting units are located on both sides of the top of the airport patrol vehicle, including left-side and right-side lighting diffuser spotlights, which are used to provide auxiliary lighting on both sides of the vehicle; The warning unit is located on the top of the airport patrol vehicle and is used to emit flashing high-brightness lights; A power module and a control module, wherein the power module is used to supply power to the high-position lighting unit, the low-position lighting unit, the auxiliary side lighting unit, the warning unit, and the control module; the control module is electrically connected to the high-position lighting unit, the low-position lighting unit, the auxiliary side lighting unit, and the warning unit; The power supply module includes a power supply device, a start-stop power supply, a 220V power supply circuit and a 12V power supply circuit. The power supply device is electrically connected to the high-position lighting unit, the low-position lighting unit and the auxiliary side lighting unit through the 220V power supply circuit; The control module includes a PLC controller, a control panel, and a control terminal; the PLC controller is electrically connected to the start-stop power supply, the PLC controller is in communication with the control terminal, and the PLC controller is electrically connected to the control panel.

[0005] The control module also includes a mode switching control circuit, an emergency stop control circuit, an AC control circuit, a low-position lighting unit control circuit electrically connected to the low-position lighting unit, a warning unit control circuit electrically connected to the warning unit, an auxiliary side lighting unit control circuit electrically connected to the auxiliary side lighting unit, and a high-position lighting unit control circuit electrically connected to the high-position lighting unit.

[0006] Furthermore, the high-position lighting unit includes a fixing plate and two LED floodlights; the LED floodlights are fixedly mounted on the fixing plate on top of the airport runway patrol vehicle; the angle between the light-emitting surfaces of the two LED floodlights is 185 degrees to 200 degrees; the angle between the light-emitting surfaces of the LED floodlights and the ground is 83 degrees to 87 degrees; The LED floodlight has LED light-emitting chips distributed in a matrix shape; the LED light-emitting chips in each row or column are combined in parallel to form an LED light group, and the LED light groups are connected in parallel; Each LED light group of one of the LED floodlights is connected in parallel with each LED light group of another LED floodlight, and after being connected in parallel, each is connected in series with an independent start-stop conversion switch.

[0007] Furthermore, the low-position lighting unit includes a main frame, a connecting frame, a spotlight, and a first diffuser; the main frame is fixedly provided with a plurality of spotlights and a first diffuser in a detachable and staggered manner; a connecting frame is provided at the bottom of the main frame; the main frame is fixedly provided in front of the airport runway patrol vehicle via the connecting frame; Swept-back side wing brackets are fixedly provided horizontally on both sides of the main frame, and the spotlights are detachably fixedly connected to the side wing brackets; The top surface of the side support is parallel to the top surface of the main support and is not at the same height The side wing support has a sweep angle of 10 degrees to 20 degrees.

[0008] Furthermore, the auxiliary side lighting unit includes a left-side lighting astigmatism spotlight and a right-side lighting astigmatism spotlight, and the left-side lighting astigmatism spotlight and the right-side lighting astigmatism spotlight are respectively fixed on both sides of the fixed plate parallel to the length direction of the airport patrol vehicle, and the angle between the light-emitting surface of the auxiliary side lighting unit and the runway ground is 30 degrees to 60 degrees; the auxiliary side lighting unit is used to provide lighting conditions when observing the conditions of the nearby airport runways on both sides of the vehicle.

[0009] Furthermore, the power supply device is also electrically connected to an AC-DC power supply, and the AC-DC power supply is electrically connected to the low-position lighting unit via a relay KA13 and a relay KM1 controlled by the control module; The start-stop power supply is also electrically connected to the low-position lighting unit via relay KA13 and relay KM1; The warning unit is independently powered by the start-stop power supply.

[0010] Optionally, the power supply equipment includes a power battery power supply and an inverter; the power battery power supply is electrically connected to the inverter, and the output end of the inverter is electrically connected to the high-position lighting unit and the auxiliary side lighting unit, outputting 220V AC power; the output end of the inverter is also electrically connected to the AC-DC power supply.

[0011] Optionally, the power supply equipment includes a generator set; the output end of the generator set is electrically connected to the high-position lighting unit and the auxiliary side lighting unit, and outputs 220V AC power; the output end of the generator set is also electrically connected to an AC-DC power supply.

[0012] Furthermore, the auxiliary side lighting unit control circuit includes a left lighting circuit and a right lighting circuit; The high-position lighting unit control circuit includes a first-level lighting circuit, a second-level lighting circuit, a third-level lighting circuit and a fourth-level lighting circuit; The mode switching control circuit, AC conversion control circuit, warning unit control circuit, left lighting circuit, right lighting circuit, first gear lighting circuit, second gear lighting circuit, third gear lighting circuit and fourth gear lighting circuit are all electrically connected to relays, transfer switches and indicator lights; A relay is electrically connected in the emergency stop control circuit; The control circuit of the low-position lighting unit is electrically connected to a relay, a transfer switch and an indicator light; The conversion switch and the indicator light are both arranged on the control panel.

[0013] Furthermore, the control module also includes a control terminal; The PLC controller is electrically connected to a wireless transparent transmission module; the control terminal is communicatively connected to the PLC controller via the wireless transparent transmission module; The conversion switch in the mode switching control loop is a mode conversion switch, and the mode conversion switch is used to adjust the control terminal operation and the control panel operation.

[0014] Furthermore, the low-level lighting unit control circuit is electrically connected to a relay KA13, which is a multi-open, multi-close type. Both ends of the relay KA13 coil are powered by 220V AC output from a power supply. The normally closed contact A of the relay KA13 is electrically connected to the high-level output of the start-stop power supply, the normally closed contact B of the relay KA13 is electrically connected to the low-level output of the start-stop power supply, the normally closed contact D of the relay KA13 is electrically connected to the high-level output 201 of the AC-DC power supply, and the normally closed contact E of the relay KA13 is electrically connected to the low-level output 200 of the AC-DC power supply. The common terminal X of the relay KA13 is electrically connected to one end of the low-level lighting unit control circuit, and the common terminal Y of the relay KA13 is electrically connected to the other end of the low-level lighting unit control circuit. When the 220V AC power is output normally, the coil of the relay KA13 is energized and the normally open contact is closed. At this time, the AC-DC power supply supplies power to the low-position lighting unit. When the 220V AC power is not output, the relay KA13 coil is not energized and automatically switches to the normally closed contact closed state. At this time, the start-stop power supply supplies power to the low-position lighting unit.

[0015] Compared with the existing technology, the present invention uses high-position lighting units, low-position lighting units and auxiliary side lighting units to jointly sweep the road surface with multi-angle lights, combined with the patrol personnel's observation angle changes, to form a "moving slice" effect; any abnormal bright or dark spots will immediately attract the attention of the patrol personnel, increasing the chance of discovering foreign objects scattered on the runway, ground anomalies or intruding animals, and buying time for subsequent processing and resolution. Moreover, as a special vehicle lighting system for ground support specially developed for patrolling airport runways, it has its own power supply to assist patrol personnel in performing patrol work normally at night or under low illumination conditions. The control panel and control terminal are combined with the PLC controller for dual control operation, making it more convenient for patrol personnel to adjust the lighting. This system also adopts an emergency redundant dual power supply mode. When the power supply equipment does not output 220V power supply, the power supply of the low-position lighting unit of this system will automatically switch to the start-stop power supply mode, ensuring the continuous stability of the lighting; the warning unit is directly powered by the start-stop power supply to maximize the power supply stability of the warning unit and increase the safety redundancy of the patrol operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 : One of the schematic diagrams of the overall three-dimensional structure of the present invention.

[0018] Figure 2 : Schematic diagram of the overall three-dimensional structure of the present invention second.

[0019] Figure 3: Schematic diagram of the three-dimensional structure of the high-position lighting unit of the present invention.

[0020] Figure 4 : Schematic diagram of the three-dimensional structure of the low-position lighting unit of the present invention.

[0021] Figure 5 : One of the AC circuit principle diagrams of the present invention.

[0022] Figure 6 : The second schematic diagram of the AC circuit of the present invention.

[0023] Figure 7 : Schematic diagram of relay KA13 of the present invention.

[0024] Figure 8 : Schematic diagram of 12V power supply circuit of the present invention.

[0025] Figure 9 : PLC controller schematic diagram of the present invention.

[0026] Figure 10 : Schematic diagram of power supply control principle of the present invention.

[0027] Among them, 1-high-position lighting unit, 12-fixed plate, 13-LED floodlight, 14-LED light-emitting chip, 15-LED lamp group, 2-low-position lighting unit, 21-main bracket, 22-connecting bracket, 23-spotlight, 24-diffuse spotlight, 25-side bracket, 3-auxiliary side lighting unit, 31-left-side lighting diffuse spotlight, 32-right-side lighting diffuse spotlight, 4-warning unit. DETAILED DESCRIPTION

[0028] In order to better understand the present invention, the content of the present invention is further clearly set forth below in conjunction with the examples, but the protection content of the present invention is not limited to the following examples. In the following description, a large number of specific details are provided in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0029] refer to Figure 1-4 A lighting system for an airport patrol vehicle includes: a high-position lighting unit 1, a low-position lighting unit 2, an auxiliary side lighting unit 3, a warning unit 4, a power module and a control module.

[0030] A high-position lighting unit 1 is located on top of the airport runway patrol vehicle and is used to illuminate the area in front of the vehicle. The high-position lighting unit 1 includes a fixing plate 12 and two LED floodlights 13 (LED floodlight A and LED floodlight B). The LED floodlights 13 are fixedly mounted on the fixing plate 12 on top of the airport runway patrol vehicle. The light-emitting surfaces of the LED floodlights A and B are at an angle of 185-200 degrees to each other. The light-emitting surface of the LED floodlight 13 is at an angle of 83-87 degrees to the ground. The light projection at the angle between the light-emitting surface and the ground can form a higher light intensity on the runway surface. At the same time, due to the oblique incidence of the light, while expanding the illumination range, it will produce a clear contrast between light and dark on the convex and concave parts of the runway surface, making it easier for drivers and observers to perceive unevenness or foreign objects on the runway surface, thereby improving the accuracy and reliability of the patrol work.

[0031] The LED floodlight 13 is equipped with a matrix of LED chips 14. Each row or column of LED chips 14 is combined in parallel to form an LED light group 15, and each LED light group 15 is connected in parallel. Each LED light group 15 of the LED floodlight is connected in parallel one-to-one with each LED light group 15 of another mirror-symmetrical LED floodlight. After the parallel connection, each LED light group 15 is connected in series with an independent start-stop switch. The symmetrical parallel arrangement of the LED light groups 15 ensures more uniform illumination intensity within the light range emitted from the light-emitting surface of the high-position lighting unit.

[0032] In some possible embodiments, the parallel LED lamp groups 15 of the two floodlights are controlled by independent control switches so that the parallel lamp groups gradually light up from the inside out.

[0033] In some possible embodiments, the parallel LED lamp groups 15 of the two floodlights are controlled by independent control switches so that the parallel lamp groups gradually light up from the outside to the inside.

[0034] The low-position lighting unit 2 is located at the front of the airport runway patrol vehicle, and is used to provide focused lighting for the distant point in front of the vehicle and supplementary lighting for the near area in front of the vehicle; the low-position lighting unit 2 includes a main bracket 21, a connecting bracket 22, a spotlight 23 and a diffuser spotlight 24; a plurality of spotlights 23 and diffuser spotlights 24 are detachably and staggeredly fixed on the main bracket 21; a connecting bracket 22 is provided at the bottom of the main bracket; the main bracket 21 is fixedly set in front of the airport runway patrol vehicle through the connecting bracket 22.

[0035] On both sides of the main body bracket 21, there are horizontally fixed rear-swept wing brackets 25, and the same spotlight 23 is detachably and fixedly connected to the wing brackets 25; preferably, the top surface of the wing bracket 25 is parallel to the top surface of the main body bracket 21 and is not at the same height; preferably, the rear-swept angle of the wing bracket 25 is 10 degrees - 20 degrees.

[0036] The spotlight 23 can project light onto the far front position of the airport runway inspection vehicle, forming a relatively bright area. Foreign objects existing on the airport runway will be highlighted from the surrounding environment under the illumination of the spotlight 23 and are more easily discovered by the inspection personnel. The diffused light spotlight 24 can evenly disperse the light to the vicinity of the front of the airport runway inspection vehicle, supplementing the lighting of the blind spot in the vicinity of the airport runway inspection vehicle, and at the same time avoiding the dazzling glare caused by the over-concentration of light in the vicinity, better assisting the inspection personnel in observing the situation of the airport runway. At the same time, when the spotlights 23 are not at the same height, the light emission angles of them are different, and they can form an illumination similar to a "pin" shape, spreading in an arc centered on the low-position lamp group at the front of the airport runway inspection vehicle, achieving a better illumination effect.

[0037] The auxiliary side illumination unit 3 is located on both sides of the top of the airport runway inspection vehicle, including a left-side illumination diffused light spotlight 31 and a right-side illumination diffused light spotlight 32, which are used for auxiliary illumination of both sides of the vehicle; the left-side illumination diffused light spotlight 31 and the right-side illumination diffused light spotlight 32 are respectively fixedly arranged on both sides of the fixed plate parallel to the driving direction of the airport runway inspection vehicle, and the light-emitting surface of the auxiliary side illumination unit 3 forms an angle of 30 degrees - 60 degrees with the runway ground; the auxiliary side illumination unit 3 is used to provide illumination conditions when observing the situation of the airport runway near both sides of the vehicle during driving. The left-side illumination diffused light spotlight 31 and the right-side illumination diffused light spotlight 32 installed on both sides of the vehicle roof can supplement the close-range side illumination for the main driver and co-driver inspection personnel at night, eliminating the problem of "dark under the lamp" in the traditional front lamp blind area, and at the same time providing the light required for observing the airport runway from a side angle. The light with different incident angles will form a contrast of strength and weakness at the convex or concave places, and the inspection personnel can quickly judge the height of the runway potholes and the condition of foreign objects based on the depth of the shadow, which is easier to identify the obstacle contour than the planar illumination.

[0038] As the vehicle moves, the multi-angle lights of the high-position illumination unit 1, the low-position illumination unit 2 and the auxiliary side illumination unit 3 jointly sweep across the road surface, forming a "moving slice" effect; any abnormal high brightness or dark spot will immediately attract the attention of the inspection personnel, increasing the discovery of scattered foreign objects on the runway, ground abnormalities or invading animals, and winning time for subsequent handling and solution.

[0039] Warning unit 4 is located on the top of the airport patrol vehicle and is used to emit flashing high-brightness lights. At night, in low visibility (fog, rain) or noisy environments, light is more effective than sound in transmitting signals, compensating for visual or auditory limitations. In high-risk areas such as runways, taxiways, and aprons, flashing or high-brightness lights (such as yellow, red, blue, etc.) are used to remind surrounding people, vehicles and aircraft to pay attention and avoid.

[0040] The power supply module is used to supply power to the high-position lighting unit 1, the low-position lighting unit 2, the auxiliary side lighting unit 3, the warning unit 4 and the control module; the control module is electrically connected to the high-position lighting unit 1, the low-position lighting unit 2, the auxiliary side lighting unit 3 and the warning unit 4.

[0041] Furthermore, the power supply module includes a power supply device and a start-stop power supply, and the power supply device is electrically connected to the high-position lighting unit 1 and the auxiliary side lighting unit 3.

[0042] The control module includes a PLC controller, a control panel, and a control terminal; the PLC controller is electrically connected to the start-stop power supply, the PLC controller is in communication with the control terminal, and the PLC controller is electrically connected to the control panel.

[0043] Optional, reference Figure 5 The power supply equipment includes a power battery power supply and an inverter U1; the power battery power supply outputs 540V DC power and is electrically connected to the inverter U1, and a relay KA3 is electrically connected between the 540V DC high-level output end and the inverter U1, and the normally open contact of the relay KA3 is used to realize the on and off of the control circuit; the inverter U1 converts the input 540V DC power into 220V AC power output.

[0044] Optionally, the power supply equipment includes a generator set; the generator set directly outputs 220V AC power.

[0045] refer to Figure 6 and Figure 10 The 220V AC output terminal is equipped with a circuit breaker QF1 to control the on / off of subsequent circuits. When the current exceeds the current limit, the circuit breaker QF1 automatically trips, cutting off the power supply to protect the subsequent circuits. The output terminal of the circuit breaker QF1 is connected in parallel to an AC voltage monitoring circuit, a low-level lighting power conversion circuit, and a 220V power supply circuit.

[0046] Furthermore, a relay KA11 is connected in series in the AC voltage monitoring circuit, both ends of the relay KA11 coil are powered by 220V voltage, and the normally open contacts of the relay KA11 are electrically connected to the PLC controller; when the 220V power supply is continuously output, the coil of KA11 is energized and attracted, and the PLC controller can obtain the on-off status of the AC voltage.

[0047] Furthermore, the low-level lighting power conversion circuit is electrically connected to a circuit breaker QF2 and a relay KA13. When the current exceeds a set value, QF2 automatically trips, cutting off power to protect subsequent circuits. Relay KA13 uses 220V AC power to power the coil. Also included within the low-level lighting power conversion circuit is an AC-DC power supply U2, connected in parallel with relay KA13. This AC-DC power supply U2 converts the 220V voltage between the live and neutral wires into a 12V high-level output terminal 201 and a 0V low-level output terminal 200.

[0048] Furthermore, the 220V power supply circuit includes a high-position lighting unit control circuit and an auxiliary side lighting unit control circuit; a circuit breaker QF3 is connected in series in the 220V power supply circuit. When the current exceeds the set current, QF3 automatically trips to cut off the power supply to protect subsequent circuits.

[0049] In the control circuit of the high-position lighting unit, each LED light group in the LED floodlight A is connected in parallel one-to-one with each LED light group in the LED floodlight B, and the parallel LED light groups are evenly divided according to their positions and electrically connected to the normally open contacts of relays KA7, KA8, KA9 and KA10 respectively, thereby forming a first-speed lighting circuit, a second-speed lighting circuit, a third-speed lighting circuit and a fourth-speed lighting circuit.

[0050] Independent switch control allows for controlled brightness control of the LED floodlights during inclement weather conditions such as rain, snow, or when the moonlight varies. This reduces road surface reflections in airport runway patrol vehicles. When water accumulates on the runway surface during rainy days, adjusting the overall illumination of the floodlights in groups using independent control switches can mitigate this reflection, reducing brightness to avoid glare and providing a clearer view of the runway's true condition.

[0051] The auxiliary side lighting unit control circuit includes a left lighting circuit and a right lighting circuit; the left lighting circuit and the right lighting circuit are electrically connected to the normally open contacts of relays KA5 and KA6 respectively.

[0052] The start-stop power supply is an independent 12V DC power supply. The high-level output end of the start-stop power supply is electrically connected to a circuit breaker QF5. When the current exceeds the set current, QF5 automatically trips to cut off the power supply to protect subsequent circuits.

[0053] The start-stop power supply output terminal is connected in parallel with a low-position lighting unit control circuit and a 12V power supply circuit; refer to Figure 6 and Figure 7The low-position lighting unit control circuit is electrically connected to a relay KA13, which is a multi-open, multi-close type. Both ends of the relay KA13 coil are powered by 220V AC. The normally closed contact A of the relay KA13 is electrically connected to the high-level output terminal of the start-stop power supply, the normally closed contact B of the relay KA13 is electrically connected to the low-level output terminal of the start-stop power supply, the normally closed contact D of the relay KA13 is electrically connected to the high-level output terminal 201 of the AC-DC power supply U2, and the normally closed contact E of the relay KA13 is electrically connected to the low-level output terminal 200 of the AC-DC power supply U2. A common terminal X is electrically connected to one end of the low-position lighting unit control circuit, and a common terminal Y is electrically connected to the other end of the low-position lighting unit control circuit.

[0054] A high-current relay KM1 is installed between the low-level lighting unit control circuit and relay KA13. Its normally open contacts are connected in series with the low-level lighting unit control circuit. If the current in the circuit exceeds the safety threshold, high-current relay KM1 quickly disconnects the circuit, providing overcurrent protection. This ensures that the equipment operates within the specified current range and prevents equipment failure or safety accidents caused by abnormal current flow.

[0055] When the 220V AC power is output normally, the coil of the relay KA13 is energized and the normally open contact is closed. At this time, the AC-DC power supply U2 supplies power to the low-position lighting unit. When the 220V AC power is not output, the relay KA13 coil is not energized and automatically switches to the normally closed contact closed state. At this time, the start-stop power supply supplies power to the low-position lighting unit. This automatic switching power supply circuit effectively ensures the lighting stability of the airport patrol vehicle.

[0056] The 12V power supply circuit is connected in series with a circuit breaker QF6 and an emergency stop switch SB1. This circuit's 12V high-level output terminal 101 and 0V low-level output terminal 00 simultaneously supply 12V DC power to a relay electrically connected to the output side of the PLC controller. The emergency stop switch SB1 is a two-position normally closed, self-locking switch. In an emergency, pressing the emergency stop switch SB1 immediately cuts off power from the 12V high-level output terminal 101 and the 0V low-level output terminal 00 to the relay electrically connected to the output side of the PLC controller.

[0057] In the 12V power supply circuit, a DC conversion power supply U3, a relay KA12, a warning unit control circuit and a digital display DC voltmeter V3 are respectively connected in parallel with the circuit breaker QF6.

[0058] The DC conversion power supply U3 converts 12V DC power to 24V DC power, and outputs the 24V DC power through a 24V high-level output terminal 301 and a 0V low-level output terminal 300. A digital DC voltmeter V2 is provided at the output end of the DC conversion power supply. The digital DC voltmeter V2 is fixedly mounted on the control panel and is used to monitor the 24V power output status.

[0059] Both ends of the relay KA12 coil are powered by 12V DC, and the normally open contacts are electrically connected to a PLC controller to monitor the on / off status of the 12V power output.

[0060] The warning unit control circuit is electrically connected to the normally open contact of the relay KA4.

[0061] The digital display DC voltmeter V3 is fixedly arranged on the control panel to monitor and display the real-time status of the 12V DC voltage of the 12V power supply circuit.

[0062] The warning unit is independently powered by the start-stop power supply. Connecting to the vehicle's existing start-stop power circuit reduces modification complexity and eliminates the need for charging and maintenance of an independent power supply. It also allows for direct integration with warning lights, avoiding the potential for light flickering caused by voltage conversion and non-standard power supply, which could mislead pilots.

[0063] refer to Figure 9 Furthermore, the PLC controller power input 24+ pin and the power input 24- pin are electrically connected to the 24V high level output terminal 301 and the 0V low level output terminal 300 respectively; the wireless transparent transmission module power input terminal is also electrically connected to the 24V high level output terminal 301 and the 0V low level output terminal 300.

[0064] The normally open contacts of the relays KA11 and KA12 are connected to the PLC controller pins X1 and X2 respectively, and the common terminals are connected to the input common terminal COM pin, respectively used to obtain the on-off status of the 220V AC output and the DC on-off status of the 12V power supply circuit; The communication terminals of the wireless transparent transmission module are respectively connected to pins a and b of the PLC controller.

[0065] The COM0 pin of the PLC controller is connected to the 12V high-level output terminal 101, and the relay KA2 coil, the knob conversion switch SA1 and the indicator light HL1 in parallel with the relay KA2 are electrically connected between the COM0 pin and the 0V low-level output terminal 00; the COM0 pin is electrically connected to the line 105, and the lines 107 and 109 are connected in parallel on the line 105; the line 107 is electrically connected to the normally closed contact of the relay KA2; the line 109 is electrically connected to the normally open contact of the relay KA2; the line 107 is electrically connected to the COM1 pin, COM2 pin, COM3 pin and COM4 pin of the PLC controller; thereby forming the mode switching control loop.

[0066] The relay KA1 coil is electrically connected between the Y0 pin of the PLC controller and the 0V low-level output terminal 00; the line 105 is electrically connected to the normally closed contact of the relay KA1; thereby forming the emergency stop control circuit.

[0067] After the Y1 pin of the PLC controller is connected to the coil part of the relay KA3, it is then connected to the 0V low-level output terminal 00; one end of the relay KA3 coil connected to the Y1 pin is also electrically connected to the line 109 through the line 112; the other end is also connected to the 0V low-level output terminal 00; the knob conversion switch SA2 is connected in series on the line 112; thereby forming an AC control loop.

[0068] The y4 pin, y5 pin, y10 pin, y11 pin, y12 pin, y13 pin, y14 pin and y15 pin of the PLC controller are respectively connected to the coil parts of relay KM1, relay KA4, relay KA5, relay KA6, relay KA7, relay KA8, relay KA9 and relay KA10, and then connected to the 0V low-level output terminal 00.

[0069] One end of the coil of relay KM1, relay KA4, relay KA5, relay KA6, relay KA7, relay KA8, relay KA9 and relay KA10 is also electrically connected to line 109 through line 113, line 114, line 115, line 116, line 117, line 118, line 119 and line 110, and the other end is also connected to the 0V low-level output terminal 00.

[0070] The lines 113, 114, 115, 116, 117, 118, 119, and 110 are connected in series with the line 109, respectively, and are connected in series with the rotary switches SA3, SA4, SA5, SA6, SA7, SA8, SA9, and SA10. The rotary switches are all provided on the control panel.

[0071] Indicator lights are connected in parallel to the outsides of the coils of relay KA3, relay KM1, relay KA4, relay KA5, relay KA6, relay KA7, relay KA8, relay KA9, and relay KA10.

[0072] During operation, the control panel's initial state is that rotary switch SA1 is in "control terminal mode" (relay KA2's normally closed contact is closed), lines 105 and 107 are connected, lines 105 and 109 are disconnected, emergency stop switch SB1 is in the pop-up closed position, rotary switch SA2 is in the "off" position, and the remaining rotary switches SA3, SA4, SA5, SA6, SA7, SA8, SA9, and SA10 are all in the "off" position. At this point, the wireless transparent transmission module is used to achieve communication between the control terminal and the PLC controller, controlling the energized states of the coils of control relays KA1, KA3, KM1, KA4, KA5, KA6, KA7, KA8, KA9, and KA10.

[0073] When control panel mode is required, the rotary switch SA1 is turned to "Control Panel Mode." The coil of relay KA2 is energized, the normally open contact closes, lines 105 and 107 are disconnected, and lines 105 and 109 are connected. The rotary switches SA2, SA3, SA4, SA5, SA6, SA7, SA8, SA9, and SA10 control the energization states of the coils of relays KA3, KM1, KA4, KA5, KA6, KA7, KA8, KA9, and KA10.

[0074] The circuit 105 is electrically connected to the normally closed contact of the relay KA1. When the coil of the relay KA1 is energized and attracted, the normally closed contact is disconnected, cutting off the power supply of the circuit 105 and realizing the emergency stop function.

[0075] The normally open contact of relay KA3 is electrically connected between the 540V DC high-level output terminal and the inverter U1. When the coil of relay KA3 is energized and attracted, the normally open contact closes, connecting the circuit and realizing the function of controlling the on and off of AC output.

[0076] The low-position lighting unit control circuit is electrically connected to the normally open contact of the relay KM1. When the coil of the relay KM1 is energized and attracted, the normally open contact is closed, connecting the circuit and realizing the function of controlling the low-position lighting unit switch.

[0077] The warning unit control circuit is electrically connected to the normally open contact of the relay KA4. When the coil of the relay KA4 is energized and attracted, the normally open contact is closed, connecting the circuit and realizing the function of controlling the switch of the warning unit.

[0078] The left lighting circuit and the right lighting circuit are electrically connected to the normally open contacts of relays KA5 and KA6 respectively. When the coils of relays KA5 and KA6 are energized and attracted, the normally open contacts are closed, connecting the circuits and realizing the function of controlling the auxiliary side lighting unit switch.

[0079] In the control circuit of the high-position lighting unit, each group of LED lamps 15 in the LED floodlight A is connected in parallel one-to-one with each group of LED lamps 15 in the LED floodlight B, and after being connected in parallel, the normally open contacts of the relays KA7, KA8, KA9 and KA10 are electrically connected respectively. When the coils of the relays KA7, KA8, KA9 and KA10 are energized and attracted, the normally open contacts are closed, connecting the circuit, thereby realizing the function of controlling the four-speed lighting switch of the high-position lighting unit.

[0080] Finally, it should be noted that the voltage, current and other parameters marked in the circuit schematic diagram of this application are only examples. The above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A lighting system for an airport patrol vehicle, characterized in that: include: The high-position lighting unit is located on the top of the airport patrol vehicle and is used to illuminate the area in front of the vehicle; The low-position lighting unit is located at the front of the airport patrol vehicle and is used to provide key lighting for the far point in front of the vehicle and supplementary lighting for the near point in front of the vehicle; Auxiliary side lighting units are located on both sides of the top of the airport patrol vehicle, including left-side and right-side lighting diffuser spotlights, which are used to provide auxiliary lighting on both sides of the vehicle; The warning unit is located on the top of the airport patrol vehicle and is used to emit flashing high-brightness lights; A power module and a control module, wherein the power module is used to supply power to the high-position lighting unit, the low-position lighting unit, the auxiliary side lighting unit, the warning unit, and the control module; the control module is electrically connected to the high-position lighting unit, the low-position lighting unit, the auxiliary side lighting unit, and the warning unit; The power supply module includes a power supply device, a start-stop power supply, a 220V power supply circuit and a 12V power supply circuit. The power supply device is electrically connected to the high-position lighting unit, the low-position lighting unit and the auxiliary side lighting unit through the 220V power supply circuit; The control module includes a PLC controller, a control panel and a control terminal; the PLC controller is electrically connected to the start-stop power supply. The PLC controller is in communication with the control terminal; the PLC controller is electrically connected to the control panel; The control module also includes a mode switching control circuit, an emergency stop control circuit, an AC control circuit, a low-position lighting unit control circuit electrically connected to the low-position lighting unit, a warning unit control circuit electrically connected to the warning unit, an auxiliary side lighting unit control circuit electrically connected to the auxiliary side lighting unit, and a high-position lighting unit control circuit electrically connected to the high-position lighting unit.

2. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The high-position lighting unit includes a fixing plate and two LED floodlights; the LED floodlights are fixedly mounted on the fixing plate on top of the airport runway patrol vehicle; the angle between the light-emitting surfaces of the two LED floodlights is 185 degrees to 200 degrees; the angle between the light-emitting surfaces of the LED floodlights and the ground is 83 degrees to 87 degrees; The LED floodlight has LED light-emitting chips distributed in a matrix shape; the LED light-emitting chips in each row or column are combined in parallel to form an LED light group, and the LED light groups are connected in parallel; Each LED light group of one of the LED floodlights is connected in parallel with each LED light group of another LED floodlight, and after being connected in parallel, each is connected in series with an independent start-stop conversion switch.

3. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The low-position lighting unit includes a main frame, a connecting frame, a spotlight, and a first diffuser light; the main frame is fixedly provided with a plurality of spotlights and a first diffuser light in a detachable and staggered manner; a connecting frame is provided at the bottom of the main frame; the main frame is fixedly provided in front of the airport runway patrol vehicle via the connecting frame; Swept-back side wing brackets are fixedly arranged horizontally on both sides of the main frame, and the spotlights are detachably fixedly connected to the side wing brackets; The top surface of the side support is parallel to the top surface of the main support and is not at the same height The side wing support has a sweep angle of 10 degrees to 20 degrees.

4. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The auxiliary side lighting unit includes a left-side astigmatism spotlight and a right-side astigmatism spotlight, which are respectively fixed on both sides of the fixed plate parallel to the length direction of the airport patrol vehicle. The angle between the light-emitting surface of the auxiliary side lighting unit and the runway ground is 30 degrees to 60 degrees; the auxiliary side lighting unit is used to provide lighting conditions when observing the conditions of the nearby airport runways on both sides of the vehicle.

5. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The power supply device is also electrically connected to an AC-DC power supply, and the AC-DC power supply is electrically connected to the low-level lighting unit via a relay KA13 and a relay KM1 controlled by the control module; The start-stop power supply is also electrically connected to the low-position lighting unit via relay KA13 and relay KM1; The warning unit is independently powered by the start-stop power supply.

6. The lighting system for an airport patrol vehicle according to claim 5, characterized in that: The power supply equipment includes a power battery power supply and an inverter; the power battery power supply is electrically connected to the inverter, and the output end of the inverter is electrically connected to the high-position lighting unit and the auxiliary side lighting unit, outputting 220V AC power; the output end of the inverter is also electrically connected to the AC-DC power supply.

7. The lighting system for an airport patrol vehicle according to claim 5, characterized in that: The power supply equipment includes a generator set; the output end of the generator set is electrically connected to the high-position lighting unit and the auxiliary side lighting unit, and outputs 220V AC power; the output end of the generator set is also electrically connected to an AC-DC power supply.

8. The lighting system for an airport patrol vehicle according to claim 6 or 7, characterized in that: The low-position lighting unit control circuit is electrically connected to a relay KA13, which is a multi-open, multi-close type. Both ends of the relay KA13 coil are powered by 220V AC output from a power supply. The normally closed contact A of the relay KA13 is electrically connected to the high-level output of the start-stop power supply, the normally closed contact B of the relay KA13 is electrically connected to the low-level output of the start-stop power supply, the normally closed contact D of the relay KA13 is electrically connected to the high-level output 201 of the AC-DC power supply, and the normally closed contact E of the relay KA13 is electrically connected to the low-level output 200 of the AC-DC power supply. The common terminal X of the relay KA13 is electrically connected to one end of the low-position lighting unit control circuit, and the common terminal Y of the relay KA13 is electrically connected to the other end of the low-position lighting unit control circuit. When the 220V AC power is output normally, the coil of the relay KA13 is energized and the normally open contact is closed. At this time, the AC-DC power supply supplies power to the low-position lighting unit. When the 220V AC power is not output, the relay KA13 coil is not energized and automatically switches to the normally closed contact closed state. At this time, the start-stop power supply supplies power to the low-position lighting unit.

9. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The auxiliary side lighting unit control circuit includes a left lighting circuit and a right lighting circuit; The high-position lighting unit control circuit includes a first-level lighting circuit, a second-level lighting circuit, a third-level lighting circuit and a fourth-level lighting circuit; The mode switching control circuit, AC conversion control circuit, warning unit control circuit, left lighting circuit, right lighting circuit, first gear lighting circuit, second gear lighting circuit, third gear lighting circuit and fourth gear lighting circuit are all electrically connected to relays, transfer switches and indicator lights; A relay is electrically connected in the emergency stop control circuit; The control circuit of the low-position lighting unit is electrically connected to a relay, a transfer switch and an indicator light; The conversion switch and the indicator light are both arranged on the control panel.

10. The lighting system for an airport patrol vehicle according to claim 1, characterized in that: The control module also includes a control terminal; The PLC controller is electrically connected to a wireless transparent transmission module; the control terminal is communicatively connected to the PLC controller via the wireless transparent transmission module; The conversion switch in the mode switching control loop is a mode conversion switch, and the mode conversion switch is used to adjust the control terminal operation and the control panel operation.

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