CN113625294B - Miniature laser rangefinder suitable for unmanned aerial vehicle - Google Patents
Miniature laser rangefinder suitable for unmanned aerial vehicle Download PDFInfo
- Publication number
- CN113625294B CN113625294B CN202110899437.3A CN202110899437A CN113625294B CN 113625294 B CN113625294 B CN 113625294B CN 202110899437 A CN202110899437 A CN 202110899437A CN 113625294 B CN113625294 B CN 113625294B
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- China
- Prior art keywords
- shell
- runner
- lens
- rotating shaft
- carrier
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
Abstract
The invention provides a miniature laser range finder suitable for an unmanned aerial vehicle, which comprises a carrier, a plurality of rotary wings arranged around the carrier, a shell, a rotating shaft, a screw rod, nuts, guide rods, guide blocks, a transmitting lens, a receiving lens, a microchip laser, a photoelectric detector and a signal processing module, wherein the nuts are matched with the screw rod in a threaded manner, the guide blocks are matched with the guide rods in a sliding manner, the shell is cylindrical, the shell is arranged at the top of the carrier, the rotating shaft is pivoted at the central position of an inner cavity of the carrier, the rotating shaft is in transmission connection with rotating shafts of the rotary wings through belts, the screw rod is vertically pivoted at the bottom of the inner cavity of the shell and is connected with the rotating shafts, the guide rods are transversely arranged in the shell, and the nuts are hinged with the guide blocks through connecting rods. The transmitting lens and the receiving lens are both positioned in the shell in a normal state, and the shell is a cube or a cylinder arranged in the middle of the carrier, so that the influence of the lens on the take-off and landing of the unmanned aerial vehicle can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of laser rangefinders, in particular to a miniature laser rangefinder suitable for an unmanned aerial vehicle.
Background
The development of the high-performance laser range finder has great practical significance for improving the development level of equipment instruments in China and improving the combat power of army. For 50 years, military requirements have led to the development of laser technology. The novel high-performance laser range finder can be applied to fighters, helicopters, unmanned aerial vehicles and remote control vehicles after slimming, even carried by individual soldiers, and the high-performance laser range finder technology determines the form of future war.
At present, the laser rangefinder that uses on unmanned aerial vehicle all is general type laser rangefinder and assembles unmanned aerial vehicle on, but the transmission lens and the receiving lens of general type laser rangefinder all are located outside the casing, and this kind of laser rangefinder installs and has multiple spot not enough on unmanned aerial vehicle: first, emission lens and receiving lens are located the casing and make the focus of laser rangefinder unstable, influence unmanned aerial vehicle's take-off and land easily. Second, when unmanned aerial vehicle is not in use, the camera lens exposes outside and easily receives the interference of external factor and causes the damage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a miniature laser range finder applicable to an unmanned aerial vehicle, and solves the problems in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a miniature laser range finder suitable for unmanned aerial vehicle, includes the carrier and sets up a plurality of rotor around the carrier, still includes casing, pivot, lead screw, screw adaptation nut, guide bar, slip adaptation on the lead screw, guide block, emission lens, receiving lens, microchip formula laser instrument, photoelectric detector, signal processing module on the guide bar, the casing sets up at the top of carrier, the appearance of casing is the cylinder, the pivot pin joint is in the central point of carrier inner chamber, the pivot passes through the rotation axis transmission of belt and a plurality of rotor to be connected, the vertical pin joint of lead screw is in the bottom of casing inner chamber and links to each other with the pivot, the guide bar transversely sets up in the casing, the nut passes through the connecting rod with the guide block and articulates, emission lens, receiving lens set up on the guide bar, set up the through-hole that can supply emission lens, receiving lens transversely stretch out on the casing, microchip formula laser instrument is fixed in the casing one side of corresponding emission lens, and links to each other with emission lens, photoelectric detector sets up in the casing one side of corresponding receiving lens to receive in order to be with the laser signal processing module received signal conversion.
Preferably, the bottom coaxial coupling of pivot has the spiral spring, be provided with the backup pad in the casing, the bottom of backup pad is provided with the electro-magnet that corresponds from top to bottom with the lead screw top, the electro-magnet overcoat is equipped with annular roof, the roof passes through spring one and links to each other with the backup pad, the roof corresponds from top to bottom with the nut, the nut is the magnetic body, can adsorb with the nut when the electro-magnet is circular telegram, the electro-magnet is established ties with the circuit of rotor.
Preferably, the top end of the screw rod is conical.
Preferably, a disengaging mechanism is arranged between the rotating shaft and the scroll spring, and when the scroll spring is wound to the limit, the rotating shaft and the scroll spring are mutually disengaged under the action of the disengaging mechanism.
Preferably, the disengaging mechanism comprises a first rotating wheel, a second rotating wheel, a rotating disc, a spring II and a spline shaft, wherein the rotating disc is fixed on the spring shaft of the spiral spring, the spline shaft is vertically arranged at the center of the rotating disc, the first rotating wheel is coaxially connected to the bottom end of the rotating shaft, the second rotating wheel is vertically slidably matched with the spline shaft, the spring II is connected between the second rotating wheel and the rotating disc, a plurality of deflector rods are arranged on the outer edges of the first rotating wheel and the second rotating wheel, the deflector rods are in an inclination angle of 135 degrees with the plane of the first rotating wheel or the second rotating wheel, the first rotating wheel and the second rotating wheel correspond up and down, and the plurality of deflector rods on the first rotating wheel and the second rotating wheel are alternately meshed.
Preferably, a power supply is arranged in the shell and is connected with the photoelectric detector, the signal processing module and the microchip laser in a circuit manner so as to supply power to the photoelectric detector, the signal processing module and the microchip laser.
The invention provides a miniature laser range finder suitable for an unmanned aerial vehicle. The beneficial effects are as follows:
1. this miniature laser rangefinder suitable for unmanned aerial vehicle, transmitting lens and receiving lens all are located the casing under the normality, and the casing is a square or cylinder setting in the centre of carrier, can reduce the influence of camera lens to unmanned aerial vehicle take off and land greatly.
2. This miniature laser rangefinder suitable for unmanned aerial vehicle, when unmanned aerial vehicle takes off, unmanned aerial vehicle's rotor can link and stretch out transmission lens and receiving lens outside the casing and reach operating condition, and when unmanned aerial vehicle stopped, transmission lens and receiving lens can reset under the effect of volute spring and shrink in the casing, make transmission lens and receiving lens can stretch out and shrink in the casing with stopping automation along with unmanned aerial vehicle's opening, and is comparatively intelligent, need not the manual work and opens.
Drawings
FIG. 1 is an external isometric view of the present invention;
FIG. 2 is a schematic view of the interior of the carrier and housing of the present invention;
FIG. 3 is a schematic view of the interior of the housing of the present invention;
FIG. 4 is a schematic view of the interior of the carrier of the present invention;
fig. 5 is a schematic view of the transmitting lens and the receiving lens of the present invention extending out of the housing.
In the figure: 1 carrier, 2 rotor, 3 casing, 4 through-holes, 5 pivot, 6 belt, 7 transmitting lens, 8 receiving lens, 9 lead screw, 10 nut, 11 guide bar, 12 guide block, 13 connecting rod, 14 backup pad, 15 electro-magnet, 16 spring one, 17 roof, 18 spiral spring, 19 runner one, 20 runner two, 21 driving lever, 22 carousel, 23 spring two, 24 spline shaft, 25 microchip laser, 26 photo detector, 27 signal processing module, 28 power.
Description of the embodiments
The embodiment of the invention provides a miniature laser range finder suitable for an unmanned aerial vehicle, which is shown in figures 1-5, and comprises a carrier 1 and a plurality of rotary wings 2 arranged around the carrier 1, wherein the miniature laser range finder is the prior art of the unmanned aerial vehicle.
The device also comprises a shell 3, a rotating shaft 5, a screw rod 9, a nut 10, a guide rod 11, a guide block 12, a transmitting lens 7, a receiving lens 8, a microchip laser 25, a photoelectric detector 26 and a signal processing module 27, wherein the nut 10 is screwed on the screw rod 9, the guide block 12 is slidingly matched on the guide rod 11, the shell 3 is arranged at the top of the carrier 1, and the shell 3 is square or cylindrical in shape. The rotating shaft 5 is pivoted at the center of the inner cavity of the carrier 1, the rotating shaft 5 is in transmission connection with the rotating shafts of the rotary wings 2 through the belts 6, and when the rotary wings 2 rotate, the rotating shaft 5 can be driven to synchronously rotate through the belts 6. The screw rod 9 is vertically pivoted at the bottom of the inner cavity of the shell 3 and is connected with the rotating shaft 5, and the rotating shaft 5 and the screw rod 9 synchronously rotate. The guide rod 11 is transversely arranged in the shell 3, the nut 10 is hinged with the guide block 12 through the connecting rod 13, the transmitting lens 7 and the receiving lens 8 are arranged on the guide block 12, and the shell 3 is provided with a through hole 4 which can be used for the transmitting lens 7 and the receiving lens 8 to transversely extend. When the screw rod 9 rotates, the nut 10 can be driven to ascend, the nut 10 ascends and drives the guide block 12 to move towards the direction of the guide rod 11 through the connecting rod 13, and the guide block 12 drives the transmitting lens 7 and the receiving lens 8 to extend out of the shell 3.
The microchip laser 25 is fixed on one side of the housing 3 corresponding to the transmitting lens 7 and connected to the transmitting lens 7, and the photodetector 26 is disposed on one side of the housing 3 corresponding to the receiving lens 8, so as to convert the laser signal received by the receiving lens 8 into an electrical signal, where the photodetector 26 is in signal connection with the signal processing module 27. A power supply 28 is arranged in the shell 3, and the power supply 28 is in circuit connection with the photodetector 26, the signal processing module 27 and the microchip laser 25 to supply power to the photodetector 26, the signal processing module 27 and the microchip laser 25. The components of the laser range finder.
The transmitting lens 7 and the receiving lens 8 are both positioned in the shell 3 in a normal state, the shell 3 is a cube or a cylinder and is arranged in the middle of the carrier 1, and the influence of the lens on the take-off and landing of the unmanned aerial vehicle can be greatly reduced.
The bottom end of the rotating shaft 5 is coaxially connected with a spiral spring 18, and the principle of the spiral spring 18 is consistent with that of a spring, so that the spiral spring can be twisted, contracted and unfolded. The casing 3 is internally provided with a support plate 14, the bottom of the support plate 14 is provided with an electromagnet 15 which corresponds to the top end of the screw rod 9 up and down, an annular top plate 17 is sleeved outside the electromagnet 15, the top plate 17 is connected with the support plate 14 through a first spring 16, the top plate 17 corresponds to the nut 10 up and down, the nut 10 is a magnetic body, the electromagnet 15 can be adsorbed by the nut 10 when being electrified, and the electromagnet 15 is connected with a circuit of the rotor wing 2 in series.
When the screw rod 9 drives the nut 10 to rise to the limit and is separated from the screw rod 9, the electromagnet 15 adsorbs the nut 10, and the nut 10 presses the top plate 17, at this time, the transmitting lens 7 and the receiving lens 8 are stabilized in the working positions.
When the screw rod 9 rotates, the spiral spring 18 is driven to tighten, and when the unmanned aerial vehicle stops, the rotor wing 2 stops rotating, and the spiral spring 18 drives the rotating shaft 5 and the screw rod 9 to reversely rotate; because the electromagnet 15 is connected with the circuit of the rotor wing 2 in series, when the rotor wing 2 stops working, the electromagnet 15 is synchronously powered off, and after the nut 10 is separated from the electromagnet 15, the nut 9 is sleeved on the screw rod 9 under the extrusion of the top plate 17, so that the screw rod 9 is reversed to drive the nut 10 to move downwards, and the transmitting lens 7 and the receiving lens 8 are retracted into the shell 3.
The top end of the screw rod 9 is conical. The nut 10 is conveniently sleeved into the top end of the screw rod 9 again.
A disengaging mechanism is arranged between the rotating shaft 5 and the spiral spring 18, and when the spiral spring 18 is wound to the limit, the rotating shaft 5 and the spiral spring 18 are mutually disengaged under the action of the disengaging mechanism.
When unmanned aerial vehicle takes off, unmanned aerial vehicle's rotor 2 can link and stretch out the transmission lens 7 and receive the camera lens 8 and reach operating condition outside the casing 2, and when unmanned aerial vehicle stopped, transmission lens 7 and receive the camera lens 8 and can reset under the effect of volute spring 18 and retract in casing 3, make transmission lens 7 and receive the camera lens 8 can stretch out and retract in casing 3 with unmanned aerial vehicle's opening and stopping automation, and is comparatively intelligent, need not the manual work and opens.
The disengaging mechanism comprises a first rotating wheel 19, a second rotating wheel 20, a rotating disc 22, a second spring 23 and a spline shaft 24, wherein the rotating disc 22 is fixed on a spring shaft of the spiral spring 18, the spline shaft 24 is vertically arranged at the center of the rotating disc 22, the first rotating wheel 19 is coaxially connected to the bottom end of the rotating shaft 5, the second rotating wheel 20 is vertically and slidably matched on the spline shaft 24, the second spring 23 is connected between the second rotating wheel 20 and the rotating disc 22, a plurality of deflector rods 21 are arranged on the outer edges of the first rotating wheel 19 and the second rotating wheel 20, the plurality of deflector rods 21 and the plane of the first rotating wheel 19 or the second rotating wheel 20 form an inclination angle of 135 degrees, and the plurality of deflector rods 21 are arranged on the first rotating wheel 19 and the plurality of deflector rods 21 are in a basin shape on the second rotating wheel 20. The first rotating wheel 19 and the second rotating wheel 20 are vertically corresponding, and a plurality of deflector rods 21 on the first rotating wheel 19 and the second rotating wheel 20 are alternately meshed. When the spiral spring 18 is wound to the limit, the deflector rod 21 on the first rotating wheel 19 presses the deflector rod 21 on the second rotating wheel 20 downwards, so that the first rotating wheel 19 and the second rotating wheel 20 are in a disengaging and engaging cycle, i.e. a slipping and non-disengaging state, and the spiral spring 18 can always keep the limit winding state and cannot be damaged.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a miniature laser rangefinder suitable for unmanned aerial vehicle, includes carrier (1) and sets up a plurality of rotor (2) around carrier (1), its characterized in that: the device also comprises a shell (3), a rotating shaft (5), a screw (9), a nut (10) screwed on the screw (9), a guide rod (11), a guide block (12) sliding on the guide rod (11), a transmitting lens (7), a receiving lens (8), a microchip laser (25), a photoelectric detector (26) and a signal processing module (27), wherein the shell (3) is cylindrical, the shell (3) is arranged at the top of the carrier (1), the rotating shaft (5) is pivoted at the central position of the inner cavity of the carrier (1), the rotating shaft (5) is connected with the rotating shafts of a plurality of rotary wings (2) through a belt (6), the screw (9) is vertically pivoted at the bottom of the inner cavity of the shell (3) and is connected with the rotating shaft (5), the guide rod (11) is transversely arranged in the shell (3), the nut (10) is hinged with the guide block (12) through a connecting rod (13), the transmitting lens (7) and the receiving lens (8) are arranged on the guide block (12), the shell (3) is provided with a through hole for the transmitting lens (7) and the receiving lens (4) to transversely extend out, the microchip laser (25) is fixed on one side of the shell (3) corresponding to the transmitting lens (7) and is connected with the transmitting lens (7), the photoelectric detector (26) is arranged on one side of the shell (3) corresponding to the receiving lens (8) so as to convert a laser signal received by the receiving lens (8) into an electric signal, and the photoelectric detector (26) is in signal connection with the signal processing module (27); the spiral spring (18) is coaxially connected to the bottom end of the rotating shaft (5), the supporting plate (14) is arranged in the shell (3), an electromagnet (15) corresponding to the top end of the screw rod (9) up and down is arranged at the bottom of the supporting plate (14), an annular top plate (17) is sleeved outside the electromagnet (15), the top plate (17) is connected with the supporting plate (14) through a first spring (16), the top plate (17) corresponds to the nut (10) up and down, the nut (10) is a magnetic body, the electromagnet (15) can be adsorbed by the nut (10) when being electrified, and the electromagnet (15) is connected with a circuit of the rotor wing (2) in series; a disengaging mechanism is arranged between the rotating shaft (5) and the spiral spring (18), and when the spiral spring (18) is wound to the limit, the rotating shaft (5) and the spiral spring (18) are mutually disengaged under the action of the disengaging mechanism; the utility model provides a clutch mechanism, including runner one (19), runner two (20), carousel (22), spring two (23) and integral key shaft (24), carousel (22) are fixed on the spring shaft of spiral spring (18), integral key shaft (24) vertical setting is in the central point of carousel (22), runner one (19) coaxial coupling is in the bottom of pivot (5), runner two (20) vertical slip adaptation is on integral key shaft (24), spring two (23) connect between runner two (20) and carousel (22), all be provided with a plurality of driving levers (21) on the outer edge of runner one (19), runner two (20), a plurality of driving levers (21) are 135 inclination with the plane of runner one (19) or runner two (20), runner one (19), runner two (20) correspond from top to bottom, a plurality of driving levers (21) on runner one (19), the runner two (20) are meshed in turn.
2. A miniature laser rangefinder for use in an unmanned aerial vehicle as claimed in claim 1, wherein: the top end of the screw rod (9) is conical.
3. A miniature laser rangefinder for use in an unmanned aerial vehicle as claimed in claim 1, wherein: the shell (3) is internally provided with a power supply (28), and the power supply (28) is in circuit connection with the photoelectric detector (26), the signal processing module (27) and the microchip laser (25) so as to supply power to the photoelectric detector (26), the signal processing module (27) and the microchip laser (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899437.3A CN113625294B (en) | 2021-08-06 | 2021-08-06 | Miniature laser rangefinder suitable for unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110899437.3A CN113625294B (en) | 2021-08-06 | 2021-08-06 | Miniature laser rangefinder suitable for unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113625294A CN113625294A (en) | 2021-11-09 |
| CN113625294B true CN113625294B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110899437.3A Active CN113625294B (en) | 2021-08-06 | 2021-08-06 | Miniature laser rangefinder suitable for unmanned aerial vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113625294A (en) | 2021-11-09 |
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