CN208765707U - Bidifly optical range finding apparatus - Google Patents
Bidifly optical range finding apparatus Download PDFInfo
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- CN208765707U CN208765707U CN201821444519.9U CN201821444519U CN208765707U CN 208765707 U CN208765707 U CN 208765707U CN 201821444519 U CN201821444519 U CN 201821444519U CN 208765707 U CN208765707 U CN 208765707U
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Abstract
A kind of bidifly optical range finding apparatus disclosed by the utility model includes ranging mechanism and equipment body, equipment body includes host and display, host is for controlling display, ranging mechanism includes laser emitting elements, camera lens, camera assembly and processing and control module, and laser emitting elements are issued in parallel dual-beam to measured object；Camera lens is used to receive the reflected light of measured object；Camera assembly is located at the rear of camera lens, and the reflected light of measured object images in camera assembly by the refraction of camera lens；Processing and control module is connect with host, camera assembly and laser emitting elements respectively, processing and control module controls the opening and closing of laser emitting elements, and the image that is captured of camera assembly is handled to obtain the distance of measured object and be supplied to display when opening and closing to laser emitting elements.The bidifly optical range finding apparatus of the utility model can carry out optical ranging using the length or area of measured object to improve range accuracy, and have advantages of simple structure and simple.
Description
Technical field
The utility model relates to range measurement field more particularly to a kind of bidifly optical range finding apparatus.
Background technique
The measurement of distance is a kind of means for effectively obtaining range data, existing rangefinder be mainly laser range finder and
Ultrasonic range finder, these rangefinders carry out the distance of indirect determination measured object often through the reflection interval of measurement light wave, still,
The time deviation being difficult to avoid that in measurement process may seriously reduce the accuracy of range determination, to be unable to satisfy gauger
Requirement to accuracy.If a certain length of known measured object or area, directly carry out ranging, energy in the way of optical measurement
Overcome and traditionally measure the problems such as existing measurement error is big using the time, however, current rangefinder be unable to satisfy it is existing
Demand.
Therefore, be badly in need of wanting it is a kind of can using the progress optical ranging of the length or area of measured object to improve range accuracy,
And structure simple bidifly optical range finding apparatus overcomes above-mentioned defect.
Utility model content
The one of the utility model, which is designed to provide one kind, to carry out optical ranging using the length or area of measured object
To improve the bidifly optical range finding apparatus of range accuracy, and the bidifly optical range finding apparatus structure is simple.
To achieve the goals above, the utility model discloses a kind of bidifly optical range finding apparatus comprising ranging mechanism and
Equipment body with display, the equipment body include host and display, and the host is described aobvious for controlling and handling
Show that device works, the display for showing data, the ranging mechanism include laser emitting elements, camera lens, camera assembly and
Processing and control module, the laser emitting elements are issued in parallel dual-beam to measured object；The camera lens is described for receiving
The reflected light of measured object；The camera assembly is located at the rear of the camera lens, and the reflected light of the measured object passes through the camera lens
Refraction and image in the camera assembly；The processing and control module respectively with the host, camera assembly and Laser emission
Element connection, the processing and control module control the opening and closing of the laser emitting elements, and to the Laser emission member
The part image that the camera assembly is captured when opening and closing is handled to obtain the distance of measured object and be supplied to described
Display.
Preferably, the laser emitting elements of the utility model are in symmetrically to be arranged in the camera lens two sides.
Preferably, the camera assembly of the utility model includes CCD device and aperture, the CCD device, aperture and camera lens
Center is located on the primary optical axis of the camera lens.
Preferably, the processing and control module of the utility model is the central processing unit being integrated on the host or number letter
Number processor.
Preferably, the equipment body of the utility model is handheld device main body.
Preferably, the handheld device main body of the utility model is smart phone, tablet computer, smart camera, intelligently takes the photograph
Camera or shooting gun tool.
Compared with prior art, since the bidifly optical range finding apparatus of the utility model has camera lens, camera assembly, processing control
Molding block and laser emitting elements, laser emitting elements are issued in parallel dual-beam to measured object, thus formed be irradiated in by
The directional light on object is surveyed, the directional light of irradiation thereon is reflexed to camera lens by measured object again, and camera lens rolls over incident reflected light
It injecting and measured object is imaged in into camera assembly, camera assembly will capture when laser emitting elements are opened and the image of the when of closing,
(that is: Laser emission when having (that is: laser emitting elements unlatching) when directional light irradiation measured object and irradiating measured object without directional light
Element close) when two states under measured object by camera lens by camera assembly capture imaging image, processing and control module
Two images are subtracted each other and are filtered, so that the reflective projection of the measured object in the case where laser emitting elements are opened is obtained,
Since measured object is remoter apart from camera lens, in the case where lens focus is constant, the projection being projeced on camera assembly is just smaller,
Using this principle, as long as learning measured object wherein a length or area, processing and control module can pass through phase in projected image
The reality between object and camera lens is calculated in the image distance between length data or area data and projected image and camera lens answered
Distance, to realize ranging, this makes it possible to effectively avoid interference caused by other reflections, so that treated projected image
Accuracy is higher, to improve the accuracy of ranging.It can similarly obtain, as long as learning the dual-beam that laser emitting elements are issued
Spacing or area the practical spacing of dual-beam or are projeced into the spot areas of measured object, processing and control module can pass through throwing
Object and mirror is calculated in image distance on shadow image between the spacing or area, projected image and camera lens of corresponding two luminous point indirectly
Actual range between head, in other words, the related data that both can use measured object measures, and can also according to circumstances utilize
The dual-beam of transmitting carries out ranging, strong applicability and structure is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model bidifly optical range finding apparatus.
Fig. 2 is the light path schematic diagram that measured object forms projection in Fig. 1.
Specific embodiment
For technology contents, the construction feature, the objects and the effects that the utility model is described in detail, below in conjunction with implementation
Mode simultaneously cooperates attached drawing to be explained in detail.
Refering to Figure 1, the bidifly optical range finding apparatus 100 of the utility model is including ranging mechanism 1 and with display
Equipment body 2, equipment body 2 include host 21 and display 22, and host 21 works for control and processing display 22, display
Device 22 includes laser emitting elements 11, camera lens 12, camera assembly 13 and processing and control module for showing data, ranging mechanism 1
14, laser emitting elements 11 are issued in parallel dual-beam to measured object 200, to form the directional light of directive measured object 200；
Camera lens 12 is used to receive the reflected light of measured object 200, is preferably the primary optical axis of camera lens 12 and the symmetrical overlapping of axles of dual-beam,
To make directional light preferably reflect in camera lens 12, and makes camera lens 12 preferably receive directional light and it is reflected, from
And improve the accuracy of measurement；Camera assembly 13 is located at the rear of camera lens 12, and the reflected light of measured object 200 passes through the folding of camera lens 12
It penetrates and images in camera assembly 13；Processing and control module 14 connects with host 21, camera assembly 13 and laser emitting elements 11 respectively
It connects, processing and control module 14 controls opening or closing for laser emitting elements 11, and opens and closes to laser emitting elements 11
When the image that is captured of camera assembly 13 handled, to obtain the distance of measured object 200 and be supplied to display 22.Preferably
It is that processing and control module 14 is the central processing unit or digital signal processor being integrated on host 21, so that each component
Between arrangement it is more compact.More specifically, as follows:
It refering to Figure 1, the two sides of camera lens 12 are arranged with laser emitting elements 11, is preferably Laser emission member
Part 11 is in symmetrically 12 two sides of camera lens are arranged in, so that the two sides that directional light is irradiated in measured object 200 are more advantageous to, thus indirectly
The better imaging effect of acquisition, and then improve measurement accuracy, in this present embodiment, laser emitting elements 11 are set as two
A, it is preferably that laser emitting elements 11 are radium-shine two that it is in parallel dual-beam that two laser emitting elements 11 issue jointly
Pole pipe can also replace other electronic components certainly as needed, therefore without being limited thereto.
Refering to Figure 1, camera assembly 13 includes CCD device 131 and aperture 132, CCD device 131,132 and of aperture
The center of camera lens 12 is located on the primary optical axis of camera lens 12, so that the cooperation between each component is more compact, to obtain more
Excellent imaging effect is to improve the accuracy of measurement.It is preferably that camera lens 12 is convex lens.Certainly, according to actual needs, CCD
Device 131 is also adjustable to other positions, as long as polarizer or other optics are arranged between CCD device 131 and aperture 132
Element changes the path of refraction light, so that the arrangement between each component is more compact.
Refering to Figure 1, equipment body 2 is handheld device main body 2, the utility model, which is carried, to be made
With.For example, handheld device main body 2 is that smart phone, tablet computer, smart camera, intelligent camera or shooting gun have,
So that the utility model can be used as daily life needed for electronic product a part, enrich electronic product function and using model
It encloses, thus offer convenience for daily life, work and study, and since 1 self structure of ranging mechanism is relatively simple, range finder
Camera lens 12 and camera assembly 13 in structure 1 are all the basic electronic component of daily handheld device main body 2, therefore, when by ranging
When mechanism 1 incorporates equipment body 2, so that it may which common sparing electronic component can not only meet consumer to the more of device in this way
The demand of function, and meet consumer to device integrally short and small frivolous pursuit.
It please refers to shown in Fig. 1 to Fig. 2, one is made in detail to the working principle of the bidifly optical range finding apparatus 100 of the utility model
Illustrate:
After device correction, the camera lens 12 of bidifly optical range finding apparatus 100 is directed at measured object 200, firstly, processing and control module
14 control laser emitting elements 11 are closed, and camera assembly 13 captures imaging when laser emitting elements 11 are closed by camera lens 12
The image of image, i.e. measured object 200 imaging in the case where no directional light irradiates；Then, processing and control module 14 controls Laser emission
Element 11 is opened and is issued in parallel dual-beam to measured object 200, to form the directional light of directive measured object 200, is tested
Directional light reflection is incorporated to and injects camera lens 12 by object 200, and the light for entering to inject camera lens 12 is reflected through camera lens 12, and then by measured object 200
Camera assembly 13 is imaged in, camera assembly 13 captures the image of imaging when laser emitting elements 11 are opened by camera lens 12, i.e.,
The image of the imaging under directional light irradiation of measured object 200, processing and control module 14 are closed and are opened to laser emitting elements 11
When the front and back two images that are captured of camera assembly 13 subtracted each other and be filtered, can thus eliminate other interference because
Element, and then the reflective projection of the measured object 200 under the unlatching of laser emitting elements 11 is finally obtained, as shown in Figure 1, measured object
The correspondence of ab two o'clock is projected as a`b` in 200, since measured object 200 is remoter apart from camera lens 12, in the feelings that 12 focal length of camera lens is constant
Under condition, it is just smaller that directional light by the reflection of measured object 200 images in the projection on camera assembly 13, i.e., measured object 200 away from
Remoter from camera lens 12, a certain length of the measured object 200 on reflective projection is shorter, and area is smaller, due to camera lens 12 and camera shooting group
The distance of part 13 is known and immobilizes, and establishes the center O formation projection a`b` that ab two o'clock in measured object 200 passes through camera lens 12
Index path known to (as shown in Figure 1), triangle O a`b` and triangle O ab are similar triangles, the ab on measured object 200
Length it is known that projection a`b` by measurement it is found that camera lens 12 be at a distance from camera assembly 13 it is known and be it is changeless
(i.e. the vertical range of O point to a`b`), therefore, the distance of center O of the ab apart from camera lens 12 in measured object 200 can calculate,
I.e. the distance of measured object 200 can be obtained by calculation.It can be seen that utilizing above-mentioned established triangle O a`b` and triangle O
Ab is the principle of similar triangles, as long as learning measured object 200 wherein a length or area, processing and control module 14 can pass through
Corresponding length data or area data and the distance between camera assembly 13 and camera lens 12 are calculated tested in projected image
Actual range between object 200 and camera lens 12, to realize ranging.Similarly, as long as learning that laser emitting elements 11 emit it
The spacing or area of dual-beam the practical spacing of two laser emitting elements 11 or are projeced into the spot areas of measured object 200, place
Manage control module 14 can by the spacing or area and projected image of two luminous point corresponding in projected image and camera lens 12 it
Between image distance the actual range between object and camera lens 12 is calculated, to realize ranging.
For the acquisition of the distance of further instruction measured object 200, by taking the index path that Fig. 2 is shown as an example, further
It is illustrated, it is known that a certain length of measured object 200 calculates distance, and the actual range of ab is H1, the height of reflective projection a`b`
For h1, the distance between center O and reflective projection a`b` of camera lens 12 are v, utilize similar triangle theory, the center of camera lens 12
The actual range u=v*H of O and measured object 2001/h1, finally, duplicate measurements is averaged, and finally feeds back to host 21 and show
It is shown in display 22；The area of known measured object 200 calculates distance, and equally by taking Fig. 2 as an example, the real area of measured object 200 is
S1, the area of the corresponding reflective projection of measured object 200 is S2, the distance between camera lens 12 and reflective projection are v, utilize similar three
Angular principle, the actual range of camera lens 12 and measured object 200Duplicate measurements is averaged, and final anti-
It is fed to host 21 and is shown in display 22.
Since the bidifly optical range finding apparatus 100 of the utility model has camera lens 12, camera assembly 13, processing and control module 14
With laser emitting elements 11, laser emitting elements 11 are issued in parallel dual-beam to measured object 200, thus formed be irradiated in by
The directional light on object 200 is surveyed, the directional light of irradiation thereon is reflexed to camera lens 12 by measured object 200 again, and camera lens 12 is anti-by incidence
It penetrates light reflect and then measured object 200 is imaged in camera assembly 13, camera assembly 13 is opened laser emitting elements 11 are captured
Image when opening and when closing, that is, when thering is directional light to irradiate measured object 200 (that is: laser emitting elements 11 open) and without directional light
Measured object 200 when irradiating measured object 200 when (that is: laser emitting elements 11 are closed) under two states is imaged by camera lens 12
Component 13 captures and the image of imaging, and processing and control module 14 is subtracted each other and is filtered to two images, to obtain
Laser emitting elements 11 open the reflective projection of lower measured object 200, since measured object 200 is remoter apart from camera lens 12, in camera lens
In the case that 12 focal lengths are constant, the projection being projeced on camera assembly 13 is just smaller, using this principle, as long as learning tested
Wherein a length or area, processing and control module 14 can pass through length data corresponding in projected image or area number to object 200
According to and image distance between projected image and camera lens 12 actual range between object and camera lens 12 is calculated, to realize survey
Away from, this makes it possible to effectively avoid interference caused by other reflections, so that treated, projected image accuracy is higher, thus
Improve the accuracy of ranging.It can similarly obtain, as long as learning the spacing or area for the dual-beam that laser emitting elements 11 are issued, i.e.,
The practical spacing of dual-beam or the spot areas for being projeced into measured object 200, processing and control module 14 can be by projected image
Spacing or area, the image distance between projected image and camera lens 12 of corresponding two luminous point be calculated indirectly object and camera lens 12 it
Between actual range, in other words, the related data that both can use measured object 200 measures, and can also according to circumstances utilize
The dual-beam of transmitting carries out ranging, strong applicability and structure is simple.
The person of being worth noting, the above-mentioned imaging transmission referred to is to be propagated in the form of light, dotted line arrow in Fig. 1 and Fig. 2
Head illustrates the mode and path that imaging is propagated, and solid arrow indicates the direction and path of data transmission；Front and back mentioned above
Direction is that user stands behind bidifly optical range finding apparatus 100 and faces when being directed at measured object 200 with bidifly optical range finding apparatus 100
Before, it is front positioned at the front side of user, the rear side positioned at user is rear.
It above disclosure is merely preferred embodiments of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Range.
Claims (6)
1. a kind of bidifly optical range finding apparatus, including having an equipment body of display, the equipment body includes host and display,
The host is for controlling and handling the display work, and the display is for showing data, it is characterised in that: described double
Laser ranging system further includes ranging mechanism, and the ranging mechanism includes:
Laser emitting elements, the laser emitting elements are issued in parallel dual-beam to measured object；
Camera lens, for receiving the reflected light of the measured object；
Camera assembly, the camera assembly are located at the rear of the camera lens, and the reflected light of the measured object passes through the camera lens
It reflects and images in the camera assembly；
Processing and control module, the processing and control module are connect with the host, camera assembly and laser emitting elements respectively, institute
The opening and closing that processing and control module controls the laser emitting elements are stated, and the laser emitting elements are opened and closed
The image that Shi Suoshu camera assembly is captured is handled to obtain the distance of measured object and be supplied to the display.
2. bidifly optical range finding apparatus as described in claim 1, it is characterised in that: the laser emitting elements are in symmetrical arrangement
In the camera lens two sides.
3. bidifly optical range finding apparatus as described in claim 1, it is characterised in that: the camera assembly includes CCD device and light
Circle, the center of the CCD device, aperture and camera lens is located on the primary optical axis of the camera lens.
4. bidifly optical range finding apparatus as described in claim 1, it is characterised in that: the processing and control module is described to be integrated in
Central processing unit or digital signal processor on host.
5. bidifly optical range finding apparatus as described in claim 1, it is characterised in that: the equipment body is handheld device master
Body.
6. bidifly optical range finding apparatus as claimed in claim 5, it is characterised in that: the handheld device main body is intelligent hand
Machine, tablet computer, smart camera, intelligent camera or shooting gun tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444519.9U CN208765707U (en) | 2018-09-03 | 2018-09-03 | Bidifly optical range finding apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444519.9U CN208765707U (en) | 2018-09-03 | 2018-09-03 | Bidifly optical range finding apparatus |
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| CN208765707U true CN208765707U (en) | 2019-04-19 |
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| CN201821444519.9U Active CN208765707U (en) | 2018-09-03 | 2018-09-03 | Bidifly optical range finding apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261884A (en) * | 2021-06-17 | 2021-08-17 | 东莞市光劲光电有限公司 | Floor sweeping robot positioning method |
| CN113281764A (en) * | 2021-04-08 | 2021-08-20 | 恒鸿达科技有限公司 | Distance measurement method based on double lasers |
-
2018
- 2018-09-03 CN CN201821444519.9U patent/CN208765707U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281764A (en) * | 2021-04-08 | 2021-08-20 | 恒鸿达科技有限公司 | Distance measurement method based on double lasers |
| CN113281764B (en) * | 2021-04-08 | 2023-11-17 | 恒鸿达科技有限公司 | Distance measurement method based on double lasers |
| CN113261884A (en) * | 2021-06-17 | 2021-08-17 | 东莞市光劲光电有限公司 | Floor sweeping robot positioning method |
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