CN106840121A - level and control method - Google Patents
level and control method Download PDFInfo
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- CN106840121A CN106840121A CN201710191486.5A CN201710191486A CN106840121A CN 106840121 A CN106840121 A CN 106840121A CN 201710191486 A CN201710191486 A CN 201710191486A CN 106840121 A CN106840121 A CN 106840121A
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- brightness
- value
- brightness value
- collector
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D25/00—Control of light, e.g. intensity, colour or phase
- G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention provides a kind of level and control method, it is related to laser application technique field, including：Brightness collector, controller and laser rays module；The brightness collector, the brightness value for gathering ambient brightness in pre-set space；The controller, for according to brightness value laser line control signal of the generation comprising target current value, the target current value to be corresponding with target brightness value, and the difference between the target brightness value and the brightness value is preset value；The laser rays module, for sending laser rays according to the target current value, and then make the brightness that the laser rays projects hot spot on destination object be the target brightness value, the difference solved between the hot spot brightness of laser level formation and ambient brightness is excessive or too small, user is caused to use inconvenient problem, having reached makes the difference between hot spot and ambient brightness obvious and difference is maintained zone of reasonableness, user-friendly technique effect.
Description
Technical field
The present invention relates to laser application field, more particularly, to a kind of level and control method.
Background technology
Laser level is widely used in architectural engineering, mainly uses laser rays to be accurately projeced into work directrix
On destination object, make work progress more convenient, time saving.The major way of laser level acquisition line source on the market is at present
Spot light is obtained first with conventional laser, then spot light is carried out into one direction diverging through rod mirror or cylindrical mirror, and then obtained
To wire hot spot.
When existing laser level is in dark working environment, laser rays may can be formed and ring on destination object
The larger hot spot of border luminance difference, causes user's ophthalmic uncomfortable, and laser rays brightness beyond the brightness needed for user
The waste of electricity can be caused；Laser level under brighter working environment, the light that laser rays may be formed on destination object
Spot is smaller with ambient brightness difference, causes user to understand identification hot spot, is unfavorable for that user uses.
The content of the invention
In view of this, it is an object of the invention to provide a kind of level and control method, swashed in the prior art with alleviating
Difference between the hot spot brightness of light level formation and ambient brightness is excessive or too small, causes the awkward technology of user
Problem.
In a first aspect, a kind of level is the embodiment of the invention provides, including：Brightness collector, controller and laser rays
Module；
The brightness collector, the brightness value for gathering ambient brightness in pre-set space, and the brightness value is sent
To the controller；
The controller, the laser line control signal for including target current value according to brightness value generation, and will
The laser line control signal is sent to laser rays module, and the target current value is corresponding with target brightness value, and the target is bright
Difference between angle value and the brightness value is preset value；
The laser rays module, for sending laser rays according to the target current value, and then makes the laser rays in mesh
The brightness that hot spot is projected on mark object is the target brightness value.
With reference in a first aspect, the embodiment of the invention provides the first possible implementation method of first aspect, wherein, institute
State the surface of shell that brightness collector is arranged at the level.
With reference in a first aspect, the embodiment of the invention provides second possible implementation method of first aspect, wherein, institute
The quantity for stating brightness collector is at least one.
With reference in a first aspect, the embodiment of the invention provides the third possible implementation method of first aspect, wherein, extremely
A few brightness collector is arranged in predeterminable area, is incident upon on destination object comprising level in the predeterminable area
The hot spot of formation.
With reference in a first aspect, the embodiment of the invention provides the 4th kind of possible implementation method of first aspect, wherein, institute
Stating level also includes：At least two wireless communication modules；
Wherein, the first wireless communication module, links with the controller, for receiving what the second wireless communication module sent
Brightness value, and the brightness value is sent to the controller；
Second wireless communication module, links with the brightness collector, for the brightness for gathering brightness collector
Value is sent to first wireless communication module.
Second aspect, the embodiment of the present invention also provides a kind of control method, is applied to include the level of brightness collector,
Methods described includes：
Obtain the brightness value of ambient brightness in the pre-set space of brightness collector collection；
The laser line control signal of target current value, the target current value and target are included according to brightness value generation
Brightness value correspondence, the difference between the target brightness value and the brightness value is preset value；
The laser line control signal is sent to the laser rays module in the level, so that the laser rays module
Laser rays is sent according to the target current value, and then makes the brightness that the laser rays projects hot spot on destination object be institute
State target brightness value.
With reference to second aspect, the first possible implementation method of second aspect is the embodiment of the invention provides, wherein, institute
The brightness value of ambient brightness in the pre-set space for obtaining the collection of brightness collector is stated, including：
Count the quantity of the brightness value that brightness collector is returned in preset time period；
If the quantity of the brightness value that brightness collector is returned is one in preset time period, determine that the brightness value is pre-
If the brightness value of ambient brightness in space；
If the quantity of the brightness value that brightness collector is returned is at least two in preset time period, determine that at least two is bright
Maximum brightness value in angle value is the brightness value of ambient brightness in pre-set space.
With reference to second aspect, second possible implementation method of second aspect is the embodiment of the invention provides, wherein, institute
The brightness value of ambient brightness in the pre-set space for obtaining the collection of brightness collector is stated, is also included：
It is determined that maximum brightness value and minimum luminance value in the brightness value that brightness collector is returned in the preset time period it
Between difference；
Judge whether the difference between the maximum brightness value and minimum luminance value exceedes predetermined threshold value；
If the difference between the maximum brightness value and minimum luminance value exceedes predetermined threshold value, alarm is sent；
If the difference between the maximum brightness value and minimum luminance value is not less than predetermined threshold value, at least two brightness are determined
Maximum brightness value in value is brightness value.
With reference to second aspect, the third possible implementation method of second aspect is the embodiment of the invention provides, wherein, institute
State and the laser line control signal comprising target current value is generated according to the brightness value, including：
Determine the corresponding predetermined luminance range of the brightness value, the default mapping table in default mapping table
In the corresponding relation comprising multigroup predetermined luminance range and target current value；
It is determined that target current value corresponding with the predetermined luminance range；
Laser line control signal of the generation comprising the target current value.
With reference to second aspect, the 4th kind of possible implementation method of second aspect is the embodiment of the invention provides, wherein, institute
Stating method also includes：
Obtain multiple predetermined luminance ranges；
Determine the target brightness value of the corresponding hot spot of each described predetermined luminance range；
Determine the target current value of each target brightness value correspondence laser rays module operating current；
The corresponding relation of multigroup predetermined luminance range and target current value is set up, and, comprising multigroup corresponding relation
Default mapping table.
The embodiment of the present invention brings following beneficial effect：Level provided in an embodiment of the present invention, can utilize brightness
The brightness value of ambient brightness in collector collection pre-set space, controller is according to brightness value laser of the generation comprising target current value
Line control signal, laser rays module sends laser rays according to the target current value, can make the laser rays in destination object
On project the brightness of hot spot for the target brightness value, the difference between target brightness value and the brightness value is preset value,
The brightness of hot spot that realization projects level is remained at higher than ambient brightness preset value, make hot spot and ambient brightness it
Between difference substantially and difference is maintained zone of reasonableness, it is user-friendly.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is level circuit structure diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of brightness collector position view provided in an embodiment of the present invention；
Fig. 3 is another brightness collector position view provided in an embodiment of the present invention；
Fig. 4 is the flow chart of control method provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of step S101 in Fig. 4；
Fig. 6 is another flow chart of step S101 in Fig. 4.
Icon：1- brightness collectors；2- controllers；3- laser rays modules.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
When current existing laser level is in dark working environment, laser rays may can be formed on destination object
The hot spot differed greatly with ambient brightness, causes user's ophthalmic uncomfortable, and laser rays brightness beyond bright needed for user
Degree will also result in the waste of electricity；Under brighter working environment, laser rays may be formed laser level on destination object
Hot spot it is smaller with ambient brightness difference, cause user cannot understand identification hot spot, be unfavorable for that user uses, based on this, this
A kind of level that inventive embodiments are provided, can reduce the difference between the laser rays and ambient brightness that level sends, just
Used in user.
For ease of understanding the present embodiment, the level disclosed in the embodiment of the present invention is situated between in detail first
Continue, as shown in figure 1, level provided in an embodiment of the present invention includes：Brightness collector 1, controller 2 and laser rays module 3.
The brightness collector 1, the brightness value for gathering ambient brightness in pre-set space, and the brightness value is sent
To the controller.
In embodiments of the present invention, brightness collector can refer to the photodetectors such as silicon photocell, it is also possible to refer to that brightness is passed
Sensor, luminance meter etc.；Pre-set space can refer to that room, staircase etc. can use the space of level.
In actual applications, the brightness collector can be arranged at the surface of shell of the level, and so, brightness is adopted
What storage was gathered is the brightness value in space where level.
When the quantity of the brightness collector that level includes is at least one, brightness collector described at least one is set
In in predeterminable area, the hot spot of formation on destination object is incident upon in the predeterminable area comprising level, that is to say, that brightness
Collector can be arranged on level and will throw on the destination object of line, and it is attached that at least one brightness collector can be distributed in hot spot
In near predeterminable area, for example, it is assumed that destination object be wall, regard wall as coordinate system, the coordinate where hot spot be from
(2,2) to (10,2), the quantity of brightness collector is two, wherein the first predeterminable area be centered on (2,2), radius be 2
The border circular areas of individual unit, the second predeterminable area be centered on (10,2), radius be 2 circles of unit, then positioned at first
The coordinate of the brightness collector in predeterminable area can be (1,2), (2,3), (3,2), (2,1) or (2,2) etc., positioned at the
The coordinate of the brightness collector in two predeterminable areas can be (9,2), (10,2), (11,2), (10,1) or (10,3) etc.,
Certainly, brightness collector can also be located at the optional position of border circular areas internal coordinate cover integer, be the first predeterminable area in Fig. 2
The coordinate of interior brightness collector is (1,2), and the coordinate of the brightness collector in the second predeterminable area shows for the position of (10,1)
It is intended to.
Assuming that when the quantity of brightness collector is three or more than three, referring to Fig. 3, except being distributed in two end points of hot spot
Outside brightness collector in corresponding predeterminable area, remaining brightness collector can be set around line segment between endpoints.
The brightness value of brightness collector collection by wired mode or can be wirelessly transmitted to controller, in brightness
When collector is arranged at level surface of shell, the brightness value of collection can be sent to by controller by restricted manner.
In the predeterminable area being arranged near hot spot in brightness collector, the level also includes：At least two nothings
Line communication module；Wherein, the first wireless communication module, links with the controller, for receiving the second wireless communication module hair
The brightness value for sending, and the brightness value is sent to the controller；Second wireless communication module, gathers with the brightness
Device is linked, for the brightness value that brightness collector is gathered to be sent into first wireless communication module, so, brightness collector
The brightness value of collection can be sent to controller by wireless communication module.
The controller 2, the laser line control signal for including target current value according to brightness value generation, and will
The laser line control signal is sent to laser rays module.
In embodiments of the present invention, the target current value is corresponding with target brightness value, the target brightness value with it is described
Difference between brightness value is preset value, and the corresponding relation between target current value and target brightness value can be stored in memory
It is interior.
The laser rays module 3, for sending laser rays according to the target current value, and then makes the laser rays in mesh
The brightness that hot spot is projected on mark object is the target brightness value.
In embodiments of the present invention, laser rays module can refer to the wordline module of laser one, it is also possible to refer to laser cross-line mould
Group etc., when the current value of laser rays module operating current is target current value, the light that laser rays is formed on destination object
The brightness of spot is target brightness value.
Level provided in an embodiment of the present invention, can utilize brightness collector collection pre-set space in ambient brightness it is bright
Angle value, according to brightness value laser line control signal of the generation comprising target current value, laser rays module is according to the mesh for controller
Mark current value sends laser rays, and the brightness that can make the laser rays that hot spot is projected on destination object is the object brightness
Value, the difference between target brightness value and the brightness value is preset value, and the brightness of the hot spot that realization projects level is begun
It is maintained at eventually higher than ambient brightness preset value, makes the difference between hot spot and ambient brightness substantially and difference is maintained reasonable model
Enclose, it is user-friendly.
In another embodiment of the present invention, as shown in figure 4, also providing a kind of control method, it is applied to include that brightness is adopted
The level of storage, the described method comprises the following steps.
In step S101, the brightness value of ambient brightness in the pre-set space of brightness collector collection is obtained.
In step s 102, according to brightness value laser line control signal of the generation comprising target current value.
The target current value is corresponding with target brightness value, and the difference between the target brightness value and the brightness value is
Preset value.
In step s 103, the laser line control signal is sent to the laser rays module in the level.
By step S103, laser rays can be sent according to the target current value in order to the laser rays module, and then
The brightness for making the laser rays that hot spot is projected on destination object is the target brightness value.
The method provided in an embodiment of the present invention, can be bright by obtaining environment in the pre-set space that brightness collector is gathered
The brightness value of degree, according to brightness value laser line control signal of the generation comprising target current value, by the laser line traffic control
Signal is sent to the laser rays module in the level, can make the laser rays that the bright of hot spot is projected on destination object
It is the target brightness value to spend, and the difference between target brightness value and the brightness value is preset value, and realization projects level
The brightness of the hot spot for going out is remained at higher than ambient brightness preset value, is made the difference between hot spot and ambient brightness substantially and is made
Difference maintains zone of reasonableness, user-friendly.
When level includes multiple brightness collectors, because the brightness of destination object diverse location may be different, in order to
Ensure that user can clearly differentiate glossing up, in another embodiment of the present invention, as shown in figure 5, the step S101 bags
Include following steps.
In step S1011, the quantity of the brightness value that brightness collector is returned in preset time period is counted.
In embodiments of the present invention, preset time period can refer to 5 seconds, 10 seconds etc., each brightness in this preset time period
Collector can gather a brightness value, it is also possible to gather the brightness value of certain number of times.
Also include between step S1011 and step S1012：Judge that in preset time period brightness collector is returned bright
Whether the quantity of angle value is one.
If the quantity of the brightness value that brightness collector is returned is one in preset time period, in step S1012, it is determined that
The brightness value is the brightness value of ambient brightness in pre-set space.
If the quantity of the brightness value that brightness collector is returned is at least two in preset time period, in step S1013,
Determine that the maximum brightness value at least two brightness values is the brightness value of ambient brightness in pre-set space.
The embodiment of the present invention can be true by maximum brightness value therein when multiple brightness collectors return to multiple brightness values
It is set to ambient brightness in pre-set space, user can be easy to clearly to differentiate glossing up.
In another embodiment of the present invention, as shown in fig. 6, the step S101 is further comprising the steps of.
In step S1014, it is determined that the maximum brightness value in the brightness value that brightness collector is returned in the preset time period
Difference and minimum luminance value between.
For example, the brightness value that the short interior brightness collector of Preset Time is returned is respectively 50lx, 100lx and 150lx, lx is photograph
Degree unit lux, then the difference between maximum brightness value and minimum luminance value is 100lx.
In step S1015, judge whether the difference between the maximum brightness value and minimum luminance value exceedes default threshold
Value.
The difference 100lx that will be obtained compares with predetermined threshold value, if predetermined threshold value is 90lx, difference is more than predetermined threshold value,
If predetermined threshold value is 110lx, difference is not less than predetermined threshold value.
If the difference between the maximum brightness value and minimum luminance value exceedes predetermined threshold value, in step S1016, send
Alarm.
If difference between the maximum brightness value and minimum luminance value is not less than predetermined threshold value, in step S1013, really
Maximum brightness value in fixed at least two brightness values is brightness value.
The method provided in an embodiment of the present invention, can return to multiple brightness values in multiple brightness collectors, and, Duo Geliang
When the difference between maximum brightness value and minimum luminance value in angle value exceedes predetermined threshold value, alarm is sent, can be in mesh
User's eye is prevented to be upset when luminance difference exceedes predetermined threshold value on mark object, there is provided user security.
In another embodiment of the present invention, the step S102 is comprised the following steps.
Determine the corresponding predetermined luminance range of the brightness value in default mapping table.
In embodiments of the present invention, multigroup predetermined luminance range and target current value are included in the default mapping table
Corresponding relation, to preset and can also include corresponding relation between target current value and target brightness value in mapping table, in advance
If the multiple target brightness values in mapping table are arranged according to order from small to large or from big to small, each two is adjacent
Difference between target brightness value is predetermined value.For example, default mapping table may refer to table 1 below：
Table 1
Data in upper table are merely to explanation predetermined luminance range and target current value, target current value and object brightness
Corresponding relation between value, does not constitute to the present invention and limits.
It is determined that target current value corresponding with the predetermined luminance range.
Laser line control signal of the generation comprising the target current value.
The embodiment of the present invention can inquire target corresponding with the brightness value of collection by the default mapping table of inquiry
Current value, laser line control signal is generated further according to target current value, is easy to the hot spot brightness for controlling laser rays module to project
Preset value higher than ambient brightness.
In another embodiment of the present invention, methods described is further comprising the steps of.
Obtain multiple predetermined luminance ranges；
Determine the target brightness value of the corresponding hot spot of each described predetermined luminance range；
Determine the target current value of each target brightness value correspondence laser rays module operating current；
The corresponding relation of multigroup predetermined luminance range and target current value is set up, and, comprising multigroup corresponding relation
Default mapping table.
The embodiment of the present invention can build default mapping table, be easy to be determined and collection according to default mapping table
The corresponding target current value of brightness value, improves operating efficiency.
Level and the computer program product of control method that the embodiment of the present invention is provided, including store program generation
The computer-readable recording medium of code, the instruction that described program code includes can be used to perform described in previous methods embodiment
Method, implements and can be found in embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be with
Storage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, specific embodiment only of the invention, is used to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme, should all cover in protection of the invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of level, it is characterised in that including：Brightness collector, controller and laser rays module；
The brightness collector, the brightness value for gathering ambient brightness in pre-set space, and the brightness value is sent to institute
State controller；
The controller, the laser line control signal for including target current value according to brightness value generation, and will be described
Laser line control signal is sent to laser rays module, and the target current value is corresponding with target brightness value, the target brightness value
It is preset value with the difference between the brightness value；
The laser rays module, for sending laser rays according to the target current value, and then makes the laser rays in target pair
As the brightness for above projecting hot spot is the target brightness value.
2. level according to claim 1, it is characterised in that the brightness collector is arranged at the shell of the level
Body surface face.
3. level according to claim 1, it is characterised in that the quantity of the brightness collector is at least one.
4. level according to claim 3, it is characterised in that brightness collector is arranged at preset areas described at least one
In domain, the hot spot of formation on destination object is incident upon in the predeterminable area comprising level.
5. level according to claim 4, it is characterised in that the level also includes：At least two radio communications
Module；
Wherein, the first wireless communication module, links with the controller, for receiving the brightness that the second wireless communication module sends
Value, and the brightness value is sent to the controller；
Second wireless communication module, links with the brightness collector, for the brightness value hair for gathering brightness collector
Give first wireless communication module.
6. a kind of control method, it is characterised in that be applied to include the level of brightness collector, methods described includes：
Obtain the brightness value of ambient brightness in the pre-set space of brightness collector collection；
The laser line control signal of target current value, the target current value and object brightness are included according to brightness value generation
Value correspondence, the difference between the target brightness value and the brightness value is preset value；
The laser line control signal is sent to the laser rays module in the level so that the laser rays module according to
The target current value sends laser rays, and then makes the brightness that the laser rays projects hot spot on destination object be the mesh
Mark brightness value.
7. control method according to claim 6, it is characterised in that the pre-set space of the acquisition brightness collector collection
The brightness value of interior ambient brightness, including：
Count the quantity of the brightness value that brightness collector is returned in preset time period；
If the quantity of the brightness value that brightness collector is returned is one in preset time period, determine that the brightness value is default sky
The brightness value of interior ambient brightness；
If the quantity of the brightness value that brightness collector is returned is at least two in preset time period, at least two brightness values are determined
In maximum brightness value be the brightness value of ambient brightness in pre-set space.
8. control method according to claim 7, it is characterised in that the pre-set space of the acquisition brightness collector collection
The brightness value of interior ambient brightness, also includes：
It is determined that between maximum brightness value and minimum luminance value in the brightness value that brightness collector is returned in the preset time period
Difference；
Judge whether the difference between the maximum brightness value and minimum luminance value exceedes predetermined threshold value；
If the difference between the maximum brightness value and minimum luminance value exceedes predetermined threshold value, alarm is sent；
If the difference between the maximum brightness value and minimum luminance value is not less than predetermined threshold value, in determining at least two brightness values
Maximum brightness value be brightness value.
9. control method according to claim 8, it is characterised in that described that target electricity is included according to brightness value generation
The laser line control signal of flow valuve, including：
Determine the corresponding predetermined luminance range of the brightness value in default mapping table, wrapped in the default mapping table
Corresponding relation containing multigroup predetermined luminance range Yu target current value；
It is determined that target current value corresponding with the predetermined luminance range；
Laser line control signal of the generation comprising the target current value.
10. control method according to claim 9, it is characterised in that methods described also includes：
Obtain multiple predetermined luminance ranges；
Determine the target brightness value of the corresponding hot spot of each described predetermined luminance range；
Determine the target current value of each target brightness value correspondence laser rays module operating current；
The corresponding relation of multigroup predetermined luminance range and target current value is set up, and, comprising the pre- of multigroup corresponding relation
If mapping table.
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| CN201710191486.5A CN106840121B (en) | 2017-03-27 | 2017-03-27 | Line projector and control method |
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| CN201710191486.5A CN106840121B (en) | 2017-03-27 | 2017-03-27 | Line projector and control method |
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| CN106840121B CN106840121B (en) | 2023-07-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN106840121B (en) | 2023-07-28 |
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