CN105182352A - Mini laser range finding device - Google Patents
Mini laser range finding device Download PDFInfo
- Publication number
- CN105182352A CN105182352A CN201510214743.3A CN201510214743A CN105182352A CN 105182352 A CN105182352 A CN 105182352A CN 201510214743 A CN201510214743 A CN 201510214743A CN 105182352 A CN105182352 A CN 105182352A
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- CN
- China
- Prior art keywords
- platform
- distance measuring
- measuring equipment
- laser distance
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention provides a mini laser range finding device. A motor is mounted on a motor installing plate, the motor installing plate is fixedly connected to a pedestal, a rotary platform is connected to an installation platform via a bearing, a transmitting-receiving platform is fixed on the installation platform, and a cover is fixedly mounted on the rotary platform. When the motor drives the rotary platform and the installation platform to rotate in the opposite directions, the transmitting-receiving platform transmits a light source signal, and the light source signal reaches an external barrier successively through a reflective mirror and a hole of the cover, is then reflected by the barrier, and reaches the transmitting-receiving platform through the hole of the cover and the reflective mirror, Compared with the prior art, the mini laser range finding device is compact in structure and small in size; the transmitting-receiving platform is fixed, and the light source signal can be transmitted through the reflective mirror and the hole of the cover; and it is not required to directly rotate a transmitting-receiving part of a light source, so that compared with a present range finding device, the measuring precision is higher and the service life is longer.
Description
Technical field
The present invention relates to a kind of distance-measuring device, particularly relate to a kind of can the miniature laser distance measuring equipment of 360 degree of wheel measurings.
Background technology
Optical scanning distance measuring equipment is a kind of equipment using collimated light beam to carry out contactless target object scanning range finding.Carried out the rotation in certain limit by the collimated light beam (as laser) that will be used for finding range, can realize carrying out scanning range finding to object in the environment of place, and extract the profile information of environment.Compare the means such as ultrasound wave, image detection, use optical scanning distance measuring equipment can realize very high scanning distance accuracy, and speed of finding range is fast.Therefore in industry and civil area, there is very high using value, be widely used in the robot autonomous figure that builds at present in fields such as navigator fix (SLAM), 3D scene rebuilding, security protection detections.
Early stage optical scanning distance measuring equipment employs the laser ranging of optical time of flight measuring principle (TimeofFlight, TOF) and coordinates many group optical mirror slips to realize scan-type range finding.Because the TOF range finder module size used is larger, and the many groups optical mirror slip comprised needs to ensure accurate fixing at work, therefore give design and produce this kind of scanning distance measuring equipment and bring very large challenge, and cause the cost of this kind of scanning distance measuring equipment higher.Meanwhile, complicated optical device too increases size and the weight of device.These factors limit this kind of scanning distance measuring equipment greatly and apply in the consumer product area of cost and volume-sensitive.
In addition, along with the development of Robotics, also require more and more higher to corresponding distance measuring equipment size, existing distance measuring equipment is still bigger than normal dimensionally, and adopts slip ring to rotate transmission of signal, also can greatly reduce its serviceable life.In view of this, how designing a kind of new miniature laser distance measuring equipment, to solve above-mentioned defect of the prior art and deficiency, is the problem that person skilled is urgently to be resolved hurrily in the industry.
Summary of the invention
For the above-mentioned defect existing for optical scanning distance measuring equipment of the prior art, the invention provides a kind of miniature laser distance measuring equipment of novelty, its structure be simple, Measurement sensibility is good, size microminaturization, long service life.
According to one aspect of the present invention, provide a kind of miniature laser distance measuring equipment, comprise base, motor, motor mounting plate, rotation platform, bearing, mounting platform, launch and accept platform, reflective mirror, cover, wherein, motor is arranged on motor mounting plate, motor mounting plate is fixedly attached to base, rotation platform is linked together by bearing and mounting platform, launch and accept platform is fixed on mounting platform, cover is fixedly mounted on rotation platform, while there is relative rotation in driven by motor rotation platform and mounting platform, launch and accept platform transmitting illuminant signal, this light signal arrives outside barrier via the perforate of reflective mirror and cover successively, then from barrier reflection and by the perforate cover and reflective mirror arrival launch and accept platform.
An embodiment wherein, described miniature laser distance measuring equipment also comprises pinion wheel, and be installed on the output shaft of motor, rotation platform comprises transmission gear, and this transmission gear engages with pinion wheel thus driven by motor rotation platform is rotated.
An embodiment wherein, described transmission gear is removably installed in the outer rim of rotation platform.
An embodiment wherein, described transmission gear and rotation platform are integrated.
An embodiment wherein, described miniature laser distance measuring equipment also comprises driving wheel, and be installed on the output shaft of motor, rotation platform also comprises engaged wheel, and this driving wheel and this engaged wheel adopt V belt translation mode that driven by motor rotation platform is rotated.
An embodiment wherein, described miniature laser distance measuring equipment also comprises the installed surface at the angle at 45 ° with surface level, for installing reflective mirror.Further, reflective mirror is arranged on cover; Or reflective mirror is fixedly mounted on rotation platform.
An embodiment wherein, rotation platform also comprises the square shaped teeth of protrusion, for recording the number of turns that rotation platform rotates.
An embodiment wherein, described square shaped teeth is laterally placed on rotation platform.
Adopt miniature laser distance measuring equipment of the present invention, its motor is arranged on motor mounting plate, motor mounting plate is fixedly attached to base, rotation platform is linked together by bearing and mounting platform, launch and accept platform is fixed on mounting platform, cover is fixedly mounted on rotation platform, while there is relative rotation in driven by motor rotation platform and mounting platform, launch and accept platform transmitting illuminant signal, this light signal arrives outside barrier via the perforate of reflective mirror and cover successively, then from barrier reflection and by the perforate cover and reflective mirror arrival launch and accept platform.Compact conformation of the present invention, size is less, within the full-size of whole device even can accomplish 70mm.Compared to prior art, launch and accept platform of the present invention is fixed, can rotate range finding by transmitting illuminant signal by the perforate of reflective mirror and cover to realize 360 degree.In addition, the present invention, without the need to directly rotating the launch and accept parts of light source, is thus better than existing distance measuring equipment in measuring accuracy and on serviceable life.
Accompanying drawing explanation
Reader, after having read the specific embodiment of the present invention with reference to accompanying drawing, will become apparent various aspects of the present invention.Wherein,
Fig. 1 illustrates the structural representation of the miniature laser distance measuring equipment according to one embodiment of the present invention;
Fig. 2 illustrates in a specific embodiment of the miniature laser distance measuring equipment of Fig. 1, the view that pinion wheel is meshed with the transmission gear of rotation platform;
Fig. 3 A illustrates in a specific embodiment of the miniature laser distance measuring equipment of Fig. 1, is used for recording rotation platform and rotates structural representation when the square shaped teeth of the number of turns is vertically placed;
Fig. 3 B illustrates in the miniature laser distance measuring equipment of Fig. 3 A, the structural representation of the transmission gear be meshed with square shaped teeth;
Fig. 4 A illustrates in another specific embodiment of the miniature laser distance measuring equipment of Fig. 1, is used for recording vertical view when square shaped teeth that rotation platform rotates the number of turns is laterally placed;
Fig. 4 B illustrates the front view being placed horizontally in the square shaped teeth of rotation platform of Fig. 4 A; And
Fig. 5 illustrates the optical path schematic diagram between the launch and accept platform of the miniature laser distance measuring equipment of Fig. 1 and outer barrie thing.
Embodiment
The technology contents disclosed to make the application is more detailed and complete, and can refer to accompanying drawing and following various specific embodiment of the present invention, mark identical in accompanying drawing represents same or analogous assembly.But those of ordinary skill in the art should be appreciated that hereinafter provided embodiment is not used for limiting the scope that contains of the present invention.In addition, accompanying drawing, only for being schematically illustrated, is not drawn according to its life size.
With reference to the accompanying drawings, the embodiment of various aspects of the present invention is described in further detail.
Fig. 1 illustrates the structural representation of the miniature laser distance measuring equipment according to one embodiment of the present invention.With reference to Fig. 1, in this embodiment, miniature laser distance measuring equipment of the present invention mainly comprises base 1, motor 2, motor mounting plate 3, rotation platform 5, bearing 6, mounting platform 7, launch and accept platform 8, reflective mirror 9 and cover 10.
Specifically, motor 2 is arranged on motor mounting plate 3, and motor mounting plate 3 is fixedly attached to base 1.Rotation platform 5 is linked together by bearing 6 and mounting platform 7.Launch and accept platform 8 is fixed on mounting platform 7.Cover 10 is fixedly mounted on rotation platform 5.While there is relative rotation with mounting platform 7 in motor 2 driven rotary platform 5, launch and accept platform 8 transmitting illuminant signal, this light signal arrives outside barrier via the perforate of reflective mirror 9 and cover 10 successively, then reflects from barrier and arrives launch and accept platform 8 by the perforate cover 10 and reflective mirror 9.
It will be understood by those of skill in the art that motor 2 driven rotary platform 5 and mounting platform 7 the relative mode rotated occur and comprise but have more than and be confined to gear manner and V belt translation mode.At a specific embodiment, this miniature laser distance measuring equipment also comprises driving wheel, is installed on the output shaft of motor 2, and rotation platform 5 also comprises engaged wheel.Driving wheel and engaged wheel adopt V belt translation mode to make to rotate together with motor 2 driven rotary platform 5.Alternatively, this miniature laser distance measuring equipment also comprises pinion wheel 4.Pinion wheel 4 is installed on the output shaft of motor 2.Rotation platform 5 comprises transmission gear.This transmission gear engages with pinion wheel 4 thus makes to rotate together with motor 2 driven rotary platform 5.
In addition, composition graphs 1 and Fig. 5 also can disclose and a kind ofly utilize above-mentioned miniature laser distance measuring equipment to carry out the method for range observation.In this measuring method, after switching on power, motor 2 rotates, and driven rotary platform 5 and cover 10 rotate, and the reflective mirror 9 being positioned at cover 10 also can 360 degree of scopes rotate.Meanwhile, launch and accept platform 8 outgoing light source, this light source arrives outside barrier 11 via the perforate H of reflective mirror 9 and cover 10 successively, then reflect from barrier 11 and again arrive launch and accept platform 8 by the perforate cover 10 and reflective mirror 9, and then calculating the distance of barrier 11.Easy understand, when the anglec of rotation in conjunction with reflective mirror 9, miniature laser distance measuring equipment of the present invention just can calculate the obstacle spacing within the scope of 360 degree under unspecified angle.
From the above, compared to prior art, launch and accept platform of the present invention maintains static, and can rotate range finding by transmitting illuminant signal by the perforate of reflective mirror and cover to realize 360 degree.Because the present invention is without the need to directly rotating the launch and accept parts of light source, be thus all better than existing distance measuring equipment in measuring accuracy and on serviceable life.
Fig. 2 illustrates in a specific embodiment of the miniature laser distance measuring equipment of Fig. 1, the view that pinion wheel is meshed with the transmission gear of rotation platform.
With reference to Fig. 2, in this embodiment, miniature laser distance measuring equipment comprises pinion wheel 4.Pinion wheel 4 is installed on the output shaft of motor 2.Rotation platform 5 comprises transmission gear 51, and this transmission gear 51 engages with pinion wheel 4 thus motor 2 driven rotary platform 5 is rotated.In one embodiment, consider the frictional influence in gear drive process and gears meshing degree, transmission gear 51 can be set to be removably installed in rotation platform 5.In addition, under some particular condition, also can transmission gear 51 and rotation platform 5 be set to one-body molded.
Fig. 3 A illustrates in a specific embodiment of the miniature laser distance measuring equipment of Fig. 1, be used for recording rotation platform and rotate structural representation when the square shaped teeth of the number of turns is vertically placed, Fig. 3 B illustrates in the miniature laser distance measuring equipment of Fig. 3 A, the structural representation of the transmission gear be meshed with square shaped teeth.
With reference to Fig. 3 A and Fig. 3 B, in this embodiment, rotation platform 5 also comprises the square shaped teeth 52 vertically protruded, and this square shaped teeth rotates the number of turns for recording rotation platform 5.In Fig. 3 B, rotation platform 5 comprises transmission gear 51, and this transmission gear 51 engages with pinion wheel 4 thus motor 2 driven rotary platform 5 is rotated.
Fig. 4 A illustrates in another specific embodiment of the miniature laser distance measuring equipment of Fig. 1, and be used for recording vertical view when square shaped teeth that rotation platform rotates the number of turns is laterally placed, Fig. 4 B illustrates the front view being placed horizontally in the square shaped teeth of rotation platform of Fig. 4 A.
Be different from Fig. 3 A, the square shaped teeth 53 of Fig. 4 A is laterally placed on rotation platform 5, and this square shaped teeth 53 is raised or sunken along horizontal radial, can realize the function of rotation platform 5 turning collar number scale record equally.
Fig. 5 illustrates the optical path schematic diagram between the launch and accept platform of the miniature laser distance measuring equipment of Fig. 1 and outer barrie thing.
In Figure 5, miniature laser distance measuring equipment also comprises the installed surface at the angle at 45 ° with surface level, and this installed surface is for installing reflective mirror 9.Preferably, reflective mirror 9 can be arranged on cover 10, also can be fixedly mounted on rotation platform 5.When motor 2 drives pinion wheel 4 to rotate, by such as gear transmission mode thus driven rotary platform 5 rotate, because cover 10 is fixedly mounted on rotation platform 5, no matter reflective mirror 9 is arranged on cover 10 or is fixedly mounted on rotation platform 5, cover 10 and reflective mirror 9 and then together with rotate.While above-mentioned parts rotate, launch and accept platform 8 has light source injection, and first this light source can be mapped on reflective mirror 9, and then generation is reflected and passed through the square hole H of cover 10, reflexes on the barrier 11 outside device.Afterwards, light source reflects on the surface of barrier 11, then gets back to reflective mirror 9 by the square hole h reflex on cover 10, finally arrives again the spacing distance of launch and accept platform 8 dyscalculia thing 11.Due to reflective mirror 9 can follow cover 10 and rotation platform 5 together around the output shaft of motor 2 with 360 degree of rotations, thus can calculate the obstacle spacing within the scope of 360 degree.
Adopt miniature laser distance measuring equipment of the present invention, its motor is arranged on motor mounting plate, motor mounting plate is fixedly attached to base, rotation platform is linked together by bearing and mounting platform, launch and accept platform is fixed on mounting platform, cover is fixedly mounted on rotation platform, while there is relative rotation in driven by motor rotation platform and mounting platform, launch and accept platform transmitting illuminant signal, this light signal arrives outside barrier via the perforate of reflective mirror and cover successively, then from barrier reflection and by the perforate cover and reflective mirror arrival launch and accept platform.Compact conformation of the present invention, size is less, within the full-size of whole device even can accomplish 70mm.Compared to prior art, launch and accept platform of the present invention is fixed, can rotate range finding by transmitting illuminant signal by the perforate of reflective mirror and cover to realize 360 degree.In addition, the present invention, without the need to directly rotating the launch and accept parts of light source, is thus better than existing distance measuring equipment in measuring accuracy and on serviceable life.
Above, the specific embodiment of the present invention is described with reference to the accompanying drawings.But those skilled in the art can understand, when without departing from the spirit and scope of the present invention, various change and replacement can also be done to the specific embodiment of the present invention.These change and replace and all drop in claims of the present invention limited range.
Claims (10)
1. a miniature laser distance measuring equipment, it is characterized in that, described miniature laser distance measuring equipment comprises base (1), motor (2), motor mounting plate (3), rotation platform (5), bearing (6), mounting platform (7), launch and accept platform (8), reflective mirror (9), cover (10)
Wherein, motor (2) is arranged on motor mounting plate (3), motor mounting plate (3) is fixedly attached to base (1), rotation platform (5) is linked together by bearing (6) and mounting platform (7), launch and accept platform (8) is fixed on mounting platform (7), cover (10) is fixedly mounted on rotation platform (5), while there is relative rotation with mounting platform (7) in motor (2) driven rotary platform (5), launch and accept platform (8) transmitting illuminant signal, this light signal arrives outside barrier via the perforate of reflective mirror (9) and cover (10) successively, then reflect and the perforate passed through cover (10) and reflective mirror (9) arrival launch and accept platform (8) from described barrier.
2. miniature laser distance measuring equipment according to claim 1, it is characterized in that, described miniature laser distance measuring equipment also comprises pinion wheel (4), be installed on the output shaft of motor (2), rotation platform (5) comprises transmission gear, and this transmission gear engages with pinion wheel (4) thus motor (2) driven rotary platform (5) is rotated.
3. miniature laser distance measuring equipment according to claim 2, is characterized in that, described transmission gear is removably installed in the outer rim of rotation platform (5).
4. miniature laser distance measuring equipment according to claim 2, is characterized in that, described transmission gear and rotation platform (5) are integrated.
5. miniature laser distance measuring equipment according to claim 1, it is characterized in that, described miniature laser distance measuring equipment also comprises driving wheel, be installed on the output shaft of motor (2), rotation platform (5) also comprises engaged wheel, and this driving wheel and this engaged wheel adopt V belt translation mode that motor (2) driven rotary platform (5) is rotated.
6. miniature laser distance measuring equipment according to claim 1, is characterized in that, described miniature laser distance measuring equipment also comprises the installed surface at the angle at 45 ° with surface level, for installing reflective mirror (9).
7. miniature laser distance measuring equipment according to claim 6, is characterized in that, reflective mirror (9) is arranged on cover (10).
8. miniature laser distance measuring equipment according to claim 6, is characterized in that, reflective mirror (9) is fixedly mounted on rotation platform (5).
9. miniature laser distance measuring equipment according to claim 1, is characterized in that, rotation platform (5) also comprises the square shaped teeth of protrusion, for recording the number of turns that rotation platform (5) rotates.
10. miniature laser distance measuring equipment according to claim 9, is characterized in that, described square shaped teeth is laterally placed on rotation platform (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214743.3A CN105182352A (en) | 2015-04-29 | 2015-04-29 | Mini laser range finding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214743.3A CN105182352A (en) | 2015-04-29 | 2015-04-29 | Mini laser range finding device |
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| CN105182352A true CN105182352A (en) | 2015-12-23 |
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| CN201510214743.3A Pending CN105182352A (en) | 2015-04-29 | 2015-04-29 | Mini laser range finding device |
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| CN105425242A (en) * | 2015-12-30 | 2016-03-23 | 天津木牛流马科技发展有限公司 | Laser displacement panoramic scan photographing radar |
| CN105527619A (en) * | 2016-02-05 | 2016-04-27 | 上海思岚科技有限公司 | Laser distance measuring equipment |
| WO2017114117A1 (en) * | 2015-12-30 | 2017-07-06 | 小米科技有限责任公司 | Laser ranging device and automatic cleaning device |
| WO2017197878A1 (en) * | 2016-05-19 | 2017-11-23 | 上海思岚科技有限公司 | Laser scanning range unit |
| CN107861111A (en) * | 2017-12-25 | 2018-03-30 | 杭州隆硕科技有限公司 | Rotary laser distance measuring sensor |
| CN112255617A (en) * | 2020-12-17 | 2021-01-22 | 上海思岚科技有限公司 | Can anti sunshine interference type laser scanning distancer |
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| CN107861111A (en) * | 2017-12-25 | 2018-03-30 | 杭州隆硕科技有限公司 | Rotary laser distance measuring sensor |
| CN112255617A (en) * | 2020-12-17 | 2021-01-22 | 上海思岚科技有限公司 | Can anti sunshine interference type laser scanning distancer |
| CN112255617B (en) * | 2020-12-17 | 2021-06-22 | 上海思岚科技有限公司 | Can anti sunshine interference type laser scanning distancer |
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Inventor after: Wu Yongqiang Inventor after: Liu Yichun Inventor after: Chen Shikai Inventor after: Li Yuxiang Inventor after: Lin Ling Inventor after: Huang Jueshen Inventor before: Wu Yongqiang Inventor before: Liu Yichun Inventor before: Chen Shikai |
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Application publication date: 20151223 |