CN110412605A - A kind of auxiliary aiming laser rangefinder and auxiliary aim at distance measuring method - Google Patents
A kind of auxiliary aiming laser rangefinder and auxiliary aim at distance measuring method Download PDFInfo
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- CN110412605A CN110412605A CN201910713187.2A CN201910713187A CN110412605A CN 110412605 A CN110412605 A CN 110412605A CN 201910713187 A CN201910713187 A CN 201910713187A CN 110412605 A CN110412605 A CN 110412605A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
The present invention provides a kind of auxiliary aiming laser rangefinders and auxiliary to aim at distance measuring method, it is related to electro-optical distance measurement technical field, the auxiliary aiming laser rangefinder is by being arranged photographic device at the top of optical structure element, and visual image is converted for the image information that photographic device acquires by display, and mark line data are directly superimposed to the specific position of visual image, the visual image of object to be measured is in the specific position of display always, to aim at object to be measured, the laser that laser pickoff is issued accurately is got in object to be measured, aiming function is assisted to realize, to complete laser ranging work.Compared to the prior art, a kind of auxiliary aiming laser rangefinder provided by the invention carries out auxiliary aiming to object to be measured by photographic device and being used cooperatively for display, without recognizing laser facula, it will not be limited by the interference of environment light, outdoor strong light environment can be suitable for, it is applied widely.
Description
Technical field
The present invention relates to electro-optical distance measurement technical fields, in particular to a kind of auxiliary aiming laser rangefinder and auxiliary
Aim at distance measuring method.
Background technique
With the maturation of laser ranging technique, the especially mature of indoor conditions phase laser distance measurement product, people
Prefer to obtain one more cost performance and adapt to the laser range finder that uses of outdoor environment.But laser range finder issues
Optical maser wavelength in sunlight wave-length coverage, when measuring target farther out, be limited by ambient light interference, people are difficult naked eye observation
The laser facula issued to rangefinder, measures target position to can not lock surely, so that it cannot realize range measurement, because
The application scenarios of this current hand-held laser rangefinder, which are substantially all, is confined to indoor environment use.
Therefore, designing and manufacturing one kind can facilitate auxiliary to aim at, and can be suitable for the rangefinder of outdoor strong light environment just
It is particularly important.
Summary of the invention
The purpose of the present invention is to provide a kind of auxiliary aiming laser rangefinder, can assist aiming at object to be measured, and
And outdoor strong light environment can be suitable for, it is applied widely.
Another object of the present invention is to provide a kind of auxiliary to aim at distance measuring method, can accurately take aim in strong light environment
Quasi- object to be measured, it is applied widely.
The present invention is that it is realized by adopting the following technical scheme.
On the one hand, the present invention provides a kind of auxiliary aiming laser rangefinders, comprising:
Optical structure element；
Laser emitter in the middle part of the optical structure element is set, for emitting laser to object to be measured；
The laser pickoff of the optical structure element bottom is set, for receiving the laser of the object to be measured reflection simultaneously
Calculate the distance between the object to be measured and the laser pickoff；
It is arranged at the top of the optical structure element, and keeps relatively-stationary photographic device with the laser emitter, uses
In the image information for acquiring the object to be measured；
The display being connect with the photographic device, for receiving described image information and being converted into visual image.
Further, the mark line for being directed at the object to be measured is provided on the display.
Further, with the side of the multiple central points for being distributed in the display and the display on the mark line
Mark point between edge, multiple mark points are for selecting the Visual Graph of the alignment object to be measured on the display
Picture.
Further, the photographic device includes lens module and imaging sensor, and the lens module is mounted on described
On optical structure element, the lens module is arranged in along the rear in imaging optical axis direction in described image sensor, and the camera lens
The imaging optical axis of mould group intersects with the light optical axis that goes out of the laser emitter.
Further, imaging sensor is cmos sensor or infrared imaging sensor.
Further, imaging sensor is used for adaptation figure for exporting image frame data, the mark line being arranged on display
As frame data, so that mark line is superimposed upon on visual image.
Further, the field angle of the lens module is between 5 ° -15 °.
Further, between the imaging optical axis direction of the lens module and the light optical axis direction out of the laser emitter
Angle be between 0.3 ° -1 °.
Further, between the imaging optical axis direction of the lens module and the light optical axis direction out of the laser emitter
Angle be 0.58 ° so that the imaging blind area of the lens module be less than or equal to 50cm.
On the other hand, the present invention provides a kind of auxiliary to aim at distance measuring method, comprising the following steps:
Acquire the image information of object to be measured；
Described image information is converted to visual image, and mark line is superimposed to the visual image；
Emit laser to the object to be measured；
It receives the laser of the object to be measured reflection and calculates the distance of the object to be measured.
The invention has the following advantages:
A kind of auxiliary aiming laser rangefinder provided by the invention, by the way that camera shooting dress is arranged at the top of optical structure element
It sets, and visual image is converted for the image information that photographic device acquires by display, it, can be real by real-time visual image
When adjust optical structure element angle so that the visual image of object to be measured is in the specific position of display always, thus right
Object to be measured is aimed at, and the laser that laser pickoff is issued accurately is got in object to be measured, completes laser ranging
Work.Compared to the prior art, a kind of auxiliary aiming laser rangefinder provided by the invention passes through photographic device and display
Auxiliary aiming is carried out with the use of to object to be measured, without recognizing laser facula, the interference of environment light, Neng Goushi will not be limited by
It is applied widely for outdoor strong light environment.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural block diagram of auxiliary aiming laser rangefinder provided by the invention；
Fig. 2 is the connection structure schematic block diagram of auxiliary aiming laser rangefinder provided by the invention；
Fig. 3 is assembling structure schematic diagram of the optical structure element under the first visual angle in Fig. 2；
Fig. 4 is assembling structure schematic diagram of the optical structure element under the second visual angle in Fig. 2；
Fig. 5 is laser facula imaging position schematic diagram in Fig. 2；
Fig. 6 is the partial schematic diagram of light channel structure in Fig. 5；
Fig. 7 is the schematic diagram of display module in Fig. 2；
Fig. 8 is the step block diagram that auxiliary provided by the invention aims at distance measuring method.
Icon: 100- assists aiming laser rangefinder；110- optical structure element；130- laser emitter；131- laser
Part；133- laser collimator lens mould group；150- laser pickoff；151- ranging receiving lens group；153- photoelectric conversion module；
155- ranging analysis module；170- photographic device；171- lens module；173- imaging sensor；190- display；191- is shown
Module；193- data conversion module.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "vertical", "horizontal", "inner", "outside"
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings or when invention product uses is used
The orientation or positional relationship often put, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connected ", " installation ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment can be combined with each other.
First embodiment
In conjunction with referring to Fig. 1 to Fig. 3, a kind of auxiliary aiming laser rangefinder 100 is present embodiments provided, it can be to mesh to be measured
Mark carries out auxiliary aiming, identifies laser facula without human eye or by complicated image processing algorithm, guarantees that range laser can
It accurately beats in object to be measured, is suitable for outdoor strong light environment, to substantially increase the auxiliary aiming laser rangefinder 100
The scope of application.
Auxiliary aiming laser rangefinder 100 provided in this embodiment, including optical structure element 110；It is arranged in optical texture
The laser emitter 130 at 110 middle part of part, for emitting laser to object to be measured；The laser of 110 bottom of optical structure element is set
Receiver 150, for receive object to be measured reflection laser and calculate between object to be measured and laser pickoff 150 away from
From；Setting keeps relatively-stationary photographic device 170 with laser emitter 130 at 110 top of optical structure element, for adopting
Collect the image information of object to be measured；The display 190 being connect with photographic device 170, for receiving image information and be converted into can
Visible image.
In the present embodiment, laser emitter 130 includes the laser device 131 and relevant driving mould for emitting laser
Block, drive module is for realizing Laser Modulation, and laser device 131 is for emitting laser.Laser device 131 is mounted on optical texture
The middle part of part 110 simultaneously is used to emit laser forward, and drive module is integrated on laser device 131, while in laser device 131
Front is additionally provided with laser collimator lens mould group 133.The wherein structure and principle Yu existing Laser emission of laser emitter 130
The structure of device 130 is consistent with principle, is not unfolded to be described herein.
In the present embodiment, laser pickoff 150 includes ranging receiving lens group 151 and photoelectric conversion module 153, photoelectricity
Conversion module 153 is connect with a ranging analysis module 155, and ranging analysis module 155 can be integrated on the circuit board of rear end, and point
It Lian Jie not display 190, laser emitter 130 and photoelectric conversion module 153.Wherein ranging receiving lens group 151 is mounted on
The bottom of optical structure element 110, photoelectric conversion module 153 are mounted on optical structure element 110 and are located at ranging receiving lens group
151 rear, reflects for receiving object to be measured and passes through the reflection laser of ranging receiving lens group 151, and passes through light
Electric conversion module 153 can be realized photoelectric conversion, and ranging analysis module 155 then realizes that the analysis of electric echo signal is handled and obtained
The distance between object to be measured and laser emitter 130 value.
It should be noted that ranging analysis module 155 and display 190 communicate to connect in the present embodiment, mould is analyzed in ranging
The distance value that block 155 obtains can be transmitted on display 190 and directly output display is as a result, certainly in digital form, herein
Individual 191 display distance value of ranging display module can be used.
Specifically, display 190 include display module 191 and data conversion module 193, data conversion module 193 with
Cmos sensor communication connection, display module 191 and data conversion module 193 communicate to connect, and display module 191 has screen,
The visual image of object to be measured can directly be shown.
In the present embodiment, the front end of photo structure part is from top to bottom opened up respectively there are three construction opening, and three installations are opened
It is separately installed with photographic device 170, laser emitter 130 and laser pickoff 150 in mouthful, wherein the upper end opening of photo structure part
Opening direction with intermediate openings is in angle, so that the Laser emission for entering light direction Yu laser emitter 130 of photographic device 170
Direction is in angle, and photographic device 170 is facilitated to acquire the image information around object to be measured.
Photographic device 170 includes lens module 171 and imaging sensor 173, and lens module 171 is mounted on optical structure element
On 110, lens module 171 is arranged in along the rear in imaging optical axis direction in imaging sensor 173, and the imaging of lens module 171
Optical axis intersects with the light optical axis that goes out of laser emitter 130.
In the present embodiment, imaging sensor 173 is cmos sensor (Complementary Metal-Oxide-
Semiconductor), i.e. complementary metal oxide semiconductor sensor, and driving electricity is integrated on the imaging sensor 173
The perception to object to be measured ambient enviroment is realized by lens module 171 and cmos sensor in road, and acquire object to be measured and its
The image information of ambient enviroment directly exports certain frame format image data stream.Certainly, imaging sensor 173 can also be with herein
It is infrared sensor or other kinds of imaging sensor, is not specifically limited herein.
It should be noted that in order to preferably see the ambient enviroment of distant place object to be measured clearly, lens module 171 should be adopted
With middle long-focus.In the present embodiment, the field angle of lens module 171 is between 5 ° -15 °.Preferably, lens module 171
Field angle is 8 °, conveniently sees distant place object to be measured clearly.
In conjunction with referring to fig. 4 to Fig. 6, in the present embodiment, the focus of lens module 171 and the light out of laser emitter 130
The distance between optical axis is 3-5cm.Preferably, between the focus of lens module 171 and the light optical axis out of laser emitter 130
Distance is 4cm, certainly, is herein only to be illustrated by taking 4cm as an example, is not restricted to number cited in the present embodiment
Value.It should be noted that the focus of lens module 171 herein, refers to that the M point in figure, laser emitter 130 go out light light
Axis, the straight line where when referring to Laser emission, the focus of lens module 171 are projected as N, lens module on light optical axis out
171 focus and the length for going out the distance between light optical axis and referring to MN of laser emitter 130, in the present embodiment, MN's
Length is 4cm.
It should be noted that the length of MN is limited by optical structure element 110 herein, when laser emitter 130 and camera lens mould
When group 171 is mounted on optical structure element 110, the relative position between laser emitter 130 and lens module 171 keeps solid
It is fixed.
Since the ranging receiving lens group 151 of lens module 171 and laser emitter 130 is not optical axis coincidence, so swashing
Imaging position A ' of the practical homing position A of laser spot that optical transmitting set 130 issues on CMOS photosurface is not photosurface
Optical axis position, and its imaging position changes with object to be measured distance.It is auxiliary when assisting aiming laser rangefinder 100 to be in video
When helping under aiming mode, the on-screen display (osd) area of display 190 and CMOS photosurface region are corresponded, i.e. auxiliary on screen
Cursor is aimed to be also required to be changed according to distance change.Particularly, it is postponed when object to be measured distance and position is less than P point in figure,
Laser spot will cannot be exactly completely to swash in the case of this on CMOS photosurface by the imaging position A ' after camera module
Light auxiliary, which will aim at cursor, to lose auxiliary aiming function on display screen area.In actual instrumentation in use, general sun
Under the conditions of light, when object to be measured distance value be less than 50cm then naked eye completely it is observed that laser facula, so, the application will be auxiliary
Aiming blind area is helped to be set as 50cm, i.e. NP=50cm in figure.
In the present embodiment, the imaging optical axis direction of lens module 171 and laser emitter 130 go out light optical axis direction it
Between angle be between 0.3 ° -1 °.Preferably, the light light out in the imaging optical axis direction of lens module 171 and laser emitter 130
Angle between axis direction is 0.58 °, so that the imaging blind area of lens module 171 is less than or equal to 50cm, it is blind in the present embodiment
Area is set as 50cm.
In the present embodiment, before the optical axis of the optical axis with laser emitter 130 of lens module 171 mutually gives laser range finder
It holds at 399cm, the mounting surface of lens module 171 and the angle of vertical direction are 0.58 °, i.e., lens module 171 as described above
Imaging optical axis direction and laser emitter 130 go out light optical axis direction between angle be 0.58 °.Its concrete principle is analyzed such as
Under:
MN is laser beam axis and the distance value of cmos imaging optical axis in the structure in Fig. 5, is 4 centimetres in the present embodiment, together
When NP=50 centimetres, then have:
And then have:
NQ=4tan ∠ QMN=4tan (85.4261 °+4 °)=399
It obtains the optical axes crosspoint in this programme and is set in 399 centimeters, that is, can guarantee that nearest blind area is 50 centimetres；
And then obtain the mounting inclination angle of CMOS photosurface are as follows: 0.58 °, the i.e. mounting surface of lens module 171 and vertical side
To angle be 0.58 °.
Referring to Fig. 7, the mark line for being directed at object to be measured is provided on display 190.There are multiple points on mark line
Mark point of the cloth between the central point of display 190 and the edge of display 190, multiple mark points are to be measured for selecting an alignment
Visual image of the target on display 190.
In the present embodiment, multiple mark points are obtained by the light channel structure relationship of 171 field angle of lens module and design
Distance relation out is demarcated, and mark line is by being superimposed upon image after directly changing particular frame format image specific position data
On picture, certainly, mark line can also be arranged on display 190 by way of external joint strip, be not specifically limited herein.
In the present embodiment, there is long distance mark point in 190 central point of display, has close to 190 edge of display
There is low coverage mark point, has in several in nonlinear Distribution away from mark point between long distance mark point and low coverage mark point.Specifically,
Herein long distance mark point for sighting range 20m or more object to be measured, low coverage mark point for aim at 1m and with
Under object to be measured, when object to be measured is within the scope of blind area, using visual sight.
Know it should be noted that laser facula imaging position corresponds to display position analysis in the screen of display 190, with
The variation of object to be measured and 130 relative distance of laser emitter, corresponding to display position is also variation, particularly, when to be measured
Target range be 50 centimetres when, corresponding display homing position will at 190 screen-picture edge of display, so, in this reality
It applies in example, in order to realize that auxiliary aims in more succinct mode, takes the mode to screen position preliminary making to assist user, separately
Outside, it is contemplated that display resolution and distant place object to be measured can increase with relative distance and be reduced, it is possible to think 20 meters
It is overlapped above with the long distance mark point of central point.
It should also be noted that, in the present embodiment position of the mark line on the screen of display 190 be it is relatively-stationary,
Operator's visually relative distance between object to be measured and laser emitter 130, selects corresponding mark point auxiliary to realize
Help aiming.For example, when estimating object to be measured greater than 20m, by the object to be measured and display 190 on the screen of display 190
The mark point at center coincides, to realize aiming.This aspect avoids the aiming cursor mark point of fixed single and reality from swashing
Light spot position generates larger deviation to mislead device operator, on the other hand also avoids carrying out complexity to video data stream
Algorithm process and to CPU operational capability propose excessive demand, to increase considerably scheme cost of implementation.
Since in video display process, screen is to show color in fixed pixel position according to preset mark line always
Point, so data conversion module 193 only needs during carrying a frame image data to video memory to data frame specific position number
According to special value is changed to, about CPU for the process of frame data stream process and the CPU mono- of existing imaging device
It causes, is not specifically described herein.
On the other hand, referring to Fig. 8, the present embodiment additionally provides a kind of auxiliary aiming distance measuring method, comprising the following steps:
S1: the image information of object to be measured is acquired.
Specifically, acquiring object to be measured and surrounding image information by photographic device 170, photographic device 170 is logical
Cmos sensor acquisition image is crossed, and the field angle of the lens module 171 of photographic device 170 is 8 °, the long-focus in, energy
Enough object to be measured to distant place are imaged, and the focus of lens module 171 is with the distance between the light optical axis that goes out of laser emitter 130
4cm, the imaging optical axis direction of lens module 171 and the angle of laser emitter 130 gone out between light optical axis direction are 0.58 °,
So that the optical axis of the optical axis of lens module 171 and laser emitter 130 is mutually given at the 399cm of laser range finder front end.
S2: image information is converted to visual image data flow, and directly in specific frame position superposition mark line data letter
Breath, is displayed on the screen, for aiming at object to be measured.
Specifically, image information is converted to visual image, and mark line is superimposed to the visual image.Display
The mark line for being directed at object to be measured is provided on 190.On mark line have multiple central points for being distributed in display 190 with
Mark point between the edge of display 190, multiple mark points are visual on display 190 for selecting an alignment object to be measured
Image.Specifically, display 190 includes display module 191 and data conversion module 193, and data conversion module 193 and CMOS are passed
Sensor communication connection, display module 191 and data conversion module 193 communicate to connect, and display module 191 has screen, direct energy
Enough to show the visual image of object to be measured, data conversion module 193 receives the image information of cmos sensor acquisition
Afterwards, visible image information is converted by data frame and is sent to display module 191, the screen of display module 191 is by mesh to be measured
Mark and surrounding image are shown.
After the screen viewing to object to be measured by display module 191, by Rational choice mark point, optics knot is adjusted
The angles and positions of component 110, to object to be measured is aligned, to realize the aiming function to object to be measured.
S3: emit laser to object to be measured.
Specifically, emitting laser to object to be measured by laser emitter 130 after aiming at object to be measured.
S4: receiving the laser of object to be measured reflection and calculates the distance of object to be measured.
It is specifically received by photoelectric conversion module 153 specifically, receiving reflection laser by laser pickoff 150
Object to be measured reflects and passes through the reflection laser of ranging receiving lens group 151, and can be real by photoelectric conversion module 153
Existing photoelectric conversion, ranging analysis module 155 then realize that the analysis of electric echo signal handles and obtains object to be measured and Laser emission
The distance between device 130 value.
In conclusion present embodiments providing a kind of auxiliary aiming laser rangefinder 100 and auxiliary aims at distance measuring method, lead to
Cross to photographic device 170 and the position of laser emitter 130 and the setting of setting angle, and using the acquisition of photographic device 170 to
The image information of target is surveyed, and visual image is converted for the image information that photographic device 170 acquires by display 190, is led to
Real-time visual image is crossed, the angle of optical structure element 110 can be adjusted in real time, so that the visual image of object to be measured is in always
The specific position of display 190, to aim at object to be measured, the laser that laser pickoff 150 is issued is quasi-
It really gets in object to be measured, completes laser ranging work.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of auxiliary aiming laser rangefinder characterized by comprising
Optical structure element；
Laser emitter in the middle part of the optical structure element is set, for emitting laser to object to be measured；
The laser pickoff of the optical structure element bottom is set, for receiving laser and the calculating of the object to be measured reflection
The distance between the object to be measured and the laser pickoff out；
It is arranged at the top of the optical structure element, and keeps relatively-stationary photographic device with the laser emitter, for adopts
Collect the image information of the object to be measured；
The display being connect with the photographic device, for receiving described image information and being converted into visual image.
2. auxiliary aiming laser rangefinder according to claim 1, which is characterized in that be provided with and be used on the display
It is directed at the mark line of the visual image of the object to be measured.
3. auxiliary aiming laser rangefinder according to claim 2, which is characterized in that have multiple points on the mark line
Mark point of the cloth between the central point of the display and the edge of the display, multiple mark points are for selecting a pair
The visual image of the quasi- object to be measured on the display.
4. auxiliary aiming laser rangefinder according to claim 2, which is characterized in that the photographic device includes camera lens mould
Group and imaging sensor, the lens module are mounted on the optical structure element, and described image sensor is arranged in the mirror
Head mould group is along the rear in imaging optical axis direction, and the imaging optical axis of the lens module and the laser emitter go out light optical axis
Intersection.
5. auxiliary aiming laser rangefinder according to claim 4, which is characterized in that described image sensor is CMOS biography
Sensor or infrared imaging sensor.
6. auxiliary aiming laser rangefinder according to claim 4, which is characterized in that described image sensor is for exporting
Image frame data, the mark line being arranged on the display is for being adapted to described image frame data, so that the mark line
It is superimposed upon on the visual image.
7. auxiliary aiming laser rangefinder according to claim 4, which is characterized in that the field angle of the lens module is
Between 5 ° -15 °.
8. auxiliary aiming laser rangefinder according to claim 7, which is characterized in that the imaging optical axis of the lens module
The angle of direction and the laser emitter gone out between light optical axis direction is between 0.3 ° -1 °.
9. auxiliary aiming laser rangefinder according to claim 8, which is characterized in that the imaging optical axis of the lens module
The angle of direction and the laser emitter gone out between light optical axis direction is 0.58 °, so that the imaging of the lens module is blind
Area is less than or equal to 50cm.
10. a kind of auxiliary aims at distance measuring method, which comprises the following steps:
Acquire the image information of object to be measured；
Described image information is converted to visual image, and mark line is superimposed to the visual image；
Emit laser to the object to be measured；
It receives the laser of the object to be measured reflection and calculates the distance of the object to be measured.
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| CN112346070A (en) * | 2020-11-10 | 2021-02-09 | 江西理工大学 | Laser ranging method under underground complex terrain condition |
| CN113218512A (en) * | 2021-06-07 | 2021-08-06 | 安徽淮光智能科技有限公司 | Infrared thermometer capable of accurately aiming |
| WO2022213752A1 (en) * | 2021-04-09 | 2022-10-13 | 常州华达科捷光电仪器有限公司 | Laser receiving apparatus |
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