Portable helicopter airport navigation-aid lighting system

Abstract

The invention discloses a portable helicopter airport navigation-aid lighting system. The portable helicopter airport navigational lighting system comprises a green light boundary lamp, a red light obstruction lamp and a white light flash lamp. The green light boundary lamp is used for determining the boundary position of the helicopter take-off and landing field, the red light obstacle lamp is used for giving an obstacle warning, and the white light flash lamp is used for distinguishing the ground position of the helicopter take-off and landing field from the air. The lighting system has the beneficial effects that the lighting system is simple in design and compact in structure, and the man-machine engineering design is met.

Description

Technical Field

[0001] The present invention relates to the field of helicopter airport navigation lights, and particularly to a portable helicopter airport navigation light system. Background Art

[0002] With the popular application of helicopters in tourism, rescue, and transportation, the demand scenarios for all-weather helicopter takeoffs and landings have increased. Please refer to Figure 1 , currently most domestic airports will choose to draw a circle and a letter "H" in the area for helicopter takeoffs and landings, without installing navigation lights, wind vanes and other equipment, and cannot achieve night takeoffs and landings. Especially in the case of helicopter night rescue (such as mountain rescue, sea rescue, medical rescue, etc.), when the helicopter needs to make a temporary landing at the rescue point, if there is a lack of corresponding visual navigation aids, the pilot will not be able to locate the landing point and miss the best rescue opportunity. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of the prior art and provide a new type of portable helicopter airport navigation light system.

[0004] To achieve the above purpose, a technical solution provided by the present invention is: a portable helicopter navigation light system, including: a green boundary light, a red obstacle light, and a white strobe light; the green boundary light is used to determine the boundary position of the helicopter takeoff and landing field, the red obstacle light is used for obstacle warning, and the white strobe light is used to identify the ground position of the helicopter takeoff and landing field from the air.

[0005] As a preferred solution of the portable helicopter navigation light system, the green boundary light, the red obstacle light, and the white strobe light can be accommodated in a portable transport box.

[0006] As a preferred solution of the portable helicopter navigation light system, the green boundary light is arranged along the boundary position of the helicopter takeoff and landing field, not more than 3m away from the boundary; for a square helicopter takeoff and landing field, the number of lights arranged on one side should be odd and not less than 5, the light spacing should not be greater than 15m, and one light should be arranged at each corner; for a circular helicopter takeoff and landing field, the number of lights arranged in the whole circle should be not less than 8, and the light spacing should not be greater than 5m.

[0007] As a preferred solution of the portable helicopter navigation light system, the light source of the green boundary light uses a green LED, the green boundary light emits light omnidirectionally, emits green light, and the elevation angle of the light beam peak is 0° - 90°.

[0008] As a preferred solution of the portable helicopter navigation light system, the optical lens of the green boundary light calculates the lens surface profile line by using the marginal ray theory and Snell's law in non-imaging optics, and forms a lens entity through 3D software modeling.

[0009] As a preferred solution for the portable helicopter navigation lighting system, the light source of the red obstruction light uses a red LED. The red obstruction light emits light omnidirectionally, emits red light, and the elevation angle of the beam peak is 0° - 15°.

[0010] As a preferred solution for the portable helicopter navigation lighting system, the optical lens of the red boundary light is a TIR lens.

[0011] As a preferred solution for the portable helicopter navigation lighting system, the light source of the white strobe light uses a white LED. The white strobe light emits light omnidirectionally, emits white light, and the elevation angle of the beam peak is 0° - 15°.

[0012] As a preferred solution for the portable helicopter navigation lighting system, the optical lens of the white strobe light uses a TIR lens.

[0013] Compared with the prior art, the beneficial effects of the present invention are at least as follows: The lighting system design is concise, the structure is compact, and it meets the ergonomic design. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a configuration diagram of a helicopter airport with the smallest temporary landing area in this application.

[0015] Figure 2 It is a three-dimensional schematic diagram of the portable helicopter navigation lighting system in this application.

[0016] Figure 3 It is a structural schematic diagram of the whole lamp in this application.

[0017] Figure 4 It is a disassembled schematic diagram of the lamp head component in this application.

[0018] Figure 5 It is an assembled schematic diagram of the base component in this application.

[0019] Figure 6 It is a disassembled schematic diagram of the base component in this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figure 2, shown in the figure is a portable helicopter navigation lighting system. The portable helicopter navigation lighting system includes: a portable transport case 1, a green boundary light 2, a red obstacle light 3, a white strobe light 4, a wireless remote control 5, a charging accessory (including a spare rechargeable battery) 6, and a lamp mounting bracket.

[0022] The portable transport case 1 can be carried by hand or by a shoulder strap. The portable transport case 1 has upper and lower inner lining spaces. The upper inner lining space is used to accommodate the green boundary light 2, the red obstacle light 3, and the white strobe light 4. The lower inner lining space is used to accommodate the wireless remote control 5, the charging accessory (including a spare rechargeable battery) 6, the lamp mounting bracket, etc.

[0023] Preferably, the portable transport case 1 is made of PP polypropylene material, with dust and water protection, resistance to high and low temperatures (-40°C - 80°C), and the system protection level can reach IP67.

[0024] The green boundary light 2 is configured along the boundary of the helicopter landing site, not more than 3m away from the boundary. For a square helicopter landing site, the number of lights configured on one side should be odd and not less than 5, the light spacing should not be greater than 15m, and 1 light should be configured at each corner. For a circular helicopter landing site, the number of lights configured in the whole circle should not be less than 8, and the light spacing should not be greater than 5m. The green boundary light 2 emits light omnidirectionally, emits green light, and the elevation angle of the beam peak is 0° - 90°. The light source of the green boundary light 2 uses a green LED. The optical lens of the green boundary light 2 calculates the lens surface profile line using the marginal ray theory and Snell's law in non-imaging optics, and forms a lens entity through 3D software modeling. The optical lens of the green boundary light 2 is made of optical grade PC material, with a light transmittance of more than 90%, good impact resistance, anti-thermal distortion performance, good weather resistance, and high hardness. The optical lens of the green boundary light 2 has higher optical efficiency, better angle control, and more uniform light intensity within the 360° omnidirectional range.

[0025] The red obstacle light 3 is located at the boundary of the helicopter apron and is used for obstacle warning, and it should not be excessive. The red obstacle light 3 emits light omnidirectionally, emits red light, and the elevation angle of the beam peak is 0° - 15°. The light source of the red obstacle light 3 uses a red LED. The light intensity distribution of the red LED lamp beads shows a Lambertian distribution, with the maximum light intensity on the main propagation axis Z-axis. The larger the angle with the main propagation axis, the smaller the light intensity, showing a cosine distribution. By shaping the light into a 360° annular collimated beam, it is possible to improve the serious light loss, low light energy utilization, and uneven light intensity in all directions of the parabolic reflector. The beam angle of the optical lens of the red obstacle light 3 is controlled within 15°, and the polarization angle is also increased, enabling the pilot to receive the signal reminder of the helicopter apron more effectively. Preferably, the optical lens is made of optical grade PC material, and the lamp shade 114 is made of optical grade PMMA material.

[0026] The white light flash lamp 4 is located on the helicopter landing pad and is used to identify the airport position from the air. The white light flash lamp 4 emits light omnidirectionally, emits white light, and the elevation angle of the beam peak is 0° - 15°. The light source of the white light flash lamp 4 uses white light LEDs. The white light flash lamp 4 should continuously emit a series of equally intermittent short-time white flashes, and the flash duration is very short, generally between 0.5 - 2 ms. The optical lens of the white light flash lamp 4 uses the optical lens 113. The optical lens of the white light flash lamp 4 can collimate the LED Lambert source into a 360° annular beam. Preferably, the optical lens is made of optical grade PC material, and the lamp shade 114 is made of optical grade PMMA material.

[0027] The frequency of the wireless remote controller 5 is 220 MHz - 240 MHz or 433 MHz, the coverage range is ≥ 3 km, and the response time is ≤ 1 s.

[0028] The charging accessory includes: a lamp charging base, a charging cable, a power supply battery, and a power charger, and each power consumption module supports centralized power supply. The power charger should be able to adapt to 220V alternating current and 26V direct current. The continuous power supply time of the rechargeable battery 124 is not less than 8 h (-40°C to +50°C). The fast charging time of the rechargeable battery 124 is ≤ 2 h.

[0029] Please refer to Figure 3 , the green light boundary lamp 2, the red light obstacle lamp 3, and the white light flash lamp 4 select cylindrical lamps with basically the same structure (the difference is only in the optical part). The cylindrical lamp is composed of a lamp head component 11, a base component 12, a sealing ring, a threaded retaining ring, etc. The lamp head component 11 and the base component 12 are assembled by screwing. There is a sealing ring between the lamp head component 11 and the base component 12. When the lamp head component 11 and the base component 12 are screwed in place, the drive board of the lamp head component 11 abuts against the spring electrode pin of the base component 12 to form a power supply circuit.

[0030] Preferably, the structural surfaces of the lamp head component 11 and the base component 12 are coated with protective processes such as acid salt anodization + polyamino paint. The installation of the switch 115 and the antenna 116 is sealed by rubber gaskets to ensure external sealing. The entire lamp structure is smooth, dense, without blind holes and sharp corners, so that corrosive media are not easily retained, and the structure is mature in application.

[0031] Please refer to Figure 4, shown in the figure is the lamp cap component 11. The lamp cap component 11 has a lamp cap housing 111, an optical component inside the lamp cap housing 111, and a driving circuit board 117. The optical component includes: an LED aluminum substrate 112, an optical lens 113, and a lamp shade 114. The LED aluminum substrate 112 is attached to the boss on the top surface of the lamp cap housing 111, and a heat-conducting silicone grease is evenly applied to the attachment surface so that the heat of the light source is directly conducted to the lamp cap housing 111, and the heat dissipation condition is good. Moreover, the LED aluminum substrate 112 is provided with mounting positioning holes, which cooperate with the positioning posts on the mounting surface for positioning. The bottom groove of the optical lens 113 is directly embedded in the LED aluminum substrate 112, and the position is limited according to the contour of the aluminum substrate to ensure that the LEDs on the LED aluminum substrate 112 are at the focal position of the optical lens 113. The lens retaining ring clamps the circumferential flange of the optical lens 113, and the bottom surface is fixed to the housing, so that the optical lens 113 and the LEDs on the LED aluminum substrate 112 are press-fitted into the lamp cap housing 111 as a whole.

[0032] Specifically, the lamp shade 114 uses the outer cylindrical surface of the lens retaining ring as the positioning surface, and the retaining ring of the lamp shade 114 is screwed into the external thread of the lamp cap housing 111 to press-fit the lamp shade 114 on the upper top surface of the housing. There is a mounting groove for the sealing ring on the upper top surface of the housing, and the outer edge of the lamp shade 114 presses the sealing ring to achieve the sealing of the lamp cap. The leads are led out from the pads on both sides of the LED aluminum substrate 112 and introduced into the driving circuit board 117 inside the lamp cap housing 111 through the through holes on the top surface of the lamp cap housing 111.

[0033] The driving circuit board 117 is inside the lamp cap housing 111. The installation structure of the driving circuit board 117 includes: one end of two rectangular control boards is embedded in the rectangular groove inside the lamp cap housing 111, and the single-row pins at the other end are connected to the single-row sockets on the circular power supply board, and the circular power supply board is fixed to the bottom end of the lamp cap housing 111.

[0034] Two raised planar regions are provided on the lamp cap housing 111 for installing the switch 115 and the antenna 116. The tail hexagonal nut of the switch 115 is tightened so that the switch 115 presses against the side wall of the lamp cap housing 111. The nut crimping part inside the lamp cap housing 111 is a planar region, which is convenient for installation, and there is an O-ring between the press-fitting surface of the switch 115 and the lamp cap housing 111 to achieve the sealing of the position of the switch 115. The installation structure of the antenna 116 is the same as that of the switch 115. The antenna 116 can be rotated to adjust the position, the hexagonal head is threadedly connected to the antenna 116 seat, and an O-ring is also placed on the press-fitting surface of the housing and the antenna 116 seat.

[0035] Please refer to Figure 5 and Figure 6, the figure shows the base component 12. The base component 12 is mainly used to carry batteries and realize rapid replacement of battery packs. The base component 12 has a base shell 121, a battery storage compartment 122, an upper electrode plate 123, a battery 124, a lower electrode plate 125, etc. The battery storage compartment 122 contains a battery 124. The base shell 121 and the battery storage compartment 122 are designed to be separated. The battery storage compartment 122 can be directly placed inside the base shell 121. The battery storage compartment 122 does not need to be fixed. When the base shell 121 is screwed with the lamp holder shell 111, the lower edge of the lamp holder shell 111 presses the compartment cover 1220 of the battery storage compartment 122 through a rubber gasket to realize the positioning of the battery storage compartment 122. The battery 124 is embedded in the plum blossom-shaped support frame inside the battery storage compartment 122. A lower electrode plate 125 is placed at the bottom of the battery storage compartment 122 so that each of the storage batteries 124 can be connected in series and parallel. An upper electrode plate 123 is provided on the top of the battery storage compartment 122 and the upper electrode plate 123 is fixed to the compartment cover 1220. The spring current needle 126 is welded to the output end of the upper electrode plate 123. The compartment cover 1220 has a through hole for the spring current needle 126 to pass through. The spring current needle 126 passes through the battery storage compartment 122 and is used as a power electrode of the power supply board. The battery storage compartment 122 and the power supply board of the lamp head component 11 are powered by the spring current needle 126. During the screwing process, the spring current needle 126 contacts and is compressed with the annular electrode of the power supply board. When screwed into place, the current needle is at the optimal compression amount, and the resistance of the current needle is the smallest at this time.

[0036] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A portable helicopter navigation lighting system, characterized in that, Including: A green light boundary lamp, a red light obstacle lamp and a white light flash lamp; the green light boundary lamp is used to determine the boundary position of the helicopter landing site, the red light obstacle lamp is used for obstacle warning, and the white light flash lamp is used to identify the ground position of the helicopter landing site from the air.

2. The portable helicopter navigation lighting system according to claim 1, characterized in that, The green light boundary lamp, the red light obstacle lamp and the white light flash lamp can be accommodated in a portable transport box.

3. The portable helicopter navigation lighting system according to claim 1, characterized in that, The green light boundary lamp is arranged along the boundary position of the helicopter landing site, not more than 3m away from the boundary; for a square helicopter landing site, the number of lamps arranged on one side should be odd and not less than 5, the lamp spacing should not be more than 15m, and 1 lamp should be arranged at each corner; for a circular helicopter landing site, the number of lamps arranged in the whole circle should not be less than 8, and the lamp spacing should not be more than 5m.

4. The portable helicopter navigation lighting system according to claim 3, characterized in that, The light source of the green light boundary lamp uses a green LED, the green light boundary lamp emits light omnidirectionally, emits green light, and the elevation angle of the beam peak is 0° - 90°.

5. The portable helicopter navigation lighting system according to claim 3, wherein, The optical lens of the green light boundary lamp calculates the lens surface profile line by using the marginal ray theory and Snell's law in non-imaging optics, and forms a lens entity through 3D software modeling.

6. The portable helicopter navigation lighting system according to claim 1, wherein, The light source of the red light obstacle lamp uses a red LED, the red light obstacle lamp emits light omnidirectionally, emits red light, and the elevation angle of the beam peak is 0° - 15°.

7. The portable helicopter navigation lighting system according to claim 6, wherein, The optical lens of the red light boundary lamp is a TIR lens.

8. The portable helicopter navigation lighting system according to claim 1, characterized in that, The light source of the white light flash lamp uses a white LED, the white light flash lamp emits light omnidirectionally, emits white light, and the elevation angle of the beam peak is 0° - 15°.

9. The portable helicopter navigation lighting system according to claim 8, wherein, The optical lens of the white light flash lamp uses a TIR lens.

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