CN108281100A - Laser-projector control method, equipment and laser-projector - Google Patents
Laser-projector control method, equipment and laser-projector Download PDFInfo
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- CN108281100A CN108281100A CN201810040128.9A CN201810040128A CN108281100A CN 108281100 A CN108281100 A CN 108281100A CN 201810040128 A CN201810040128 A CN 201810040128A CN 108281100 A CN108281100 A CN 108281100A
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- projector
- signal
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
Abstract
This application discloses a kind of laser-projector control method, equipment and laser-projectors, including：Determine the corresponding laser projection region of the Imaging laser of the laser-projector；Emit infrared laser to the laser projection region by Infrared laser emission device；Based on the infrared reflectance signal of the infrared laser, determines there are when light intensity variation, generate the out code for the Imaging laser；The out code is executed, stops transmitting imaging Laser to control the Imaging laser.The embodiment of the present application improves the safety of laser-projector.
Description
Technical field
The application belongs to field of intelligent control technology, specifically, be related to a kind of laser-projector control method, equipment and
Laser-projector.
Background technology
Laser-projector be it is a kind of the laser beam of laser transmitter projects is projected into projection arrangement, in projection arrangement
The electronic equipment of upper projection frame out.The projection arrangement is projection screen, the wall for referring to display image or video file
Face etc..
Laser-projector and the projection arrangement there are certain projector distance, laser-projector and the projection arrangement it
Between region constitute laser projection region.Laser-projector is in projection process, when user enters into the laser projection region,
Laser will be projected on the body of user, when especially face is opposite with the laser that laser-projector emits, laser beam
It can project on the eyes of user.
If laser beam projects human eye, retina is within a short period of time by the larger laser irradiation of intensity, laser light
Beam can gather in human eye is converted into thermal energy to destroy the albuminous cell of human eye, and therefore, laser beam irradiates human eye can be to people
Eye generates damage, causes the safety of laser-projector relatively low.
Invention content
In view of this, this application provides a kind of laser-projector control method, equipment and laser-projector, it is existing to solve
Have in technology, laser-projector there is technical issues that.
In order to solve the above-mentioned technical problem, the first aspect of the application provides a kind of laser-projector control method, described
Method includes：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the infrared laser, determine that there are when light intensity variation, generate to swash for the imaging
The out code of light device；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
Preferably, described to execute the out code, stopped after emitting imaging Laser with controlling the Imaging laser,
Further include：
It based on the infrared reflectance signal of the infrared laser, determines there is no light intensity variation, generates and swash for the imaging
The projection of light device instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
Preferably, the infrared reflectance signal based on the infrared laser determines that generation is directed to there are when light intensity variation
The out code of the Imaging laser includes：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
The second aspect of the application provides a kind of laser-projector control device, including, storage assembly, with the storage group
The processing component of part connection, the Infrared laser emission device being connected to the processor；The Infrared laser emission device is for emitting
Infrared laser；
Wherein, the storage assembly includes one or more memories, and the processing component includes one or more handles
Device；One or more of memories supply the processing for storing one or more computer instruction, the computer instruction
Component call executes；
The processing component is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the Infrared laser emission device, determines there are when light intensity variation, generate for described
The out code of Imaging laser；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
Preferably, the processing component is additionally operable to：
It based on the infrared reflectance signal of the infrared laser, determines there is no light intensity variation, generates and swash for the imaging
The projection of light device instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
Preferably, the equipment further includes：The infrared laser receiver being connect with the processing component；The processing component
Reflection signal based on the infrared laser determines that there are closings when light intensity variation, generated for the Imaging laser to refer to
Order is specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by the infrared remote receiver；Determine the infrared reflectance signal
The second intensity signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
The application third aspect provides a kind of laser-projector, including：Imaging laser and Infrared laser emission device, place
Reason component and the storage assembly being connect with the processing component；The processing component includes one or more processors, described
Storage assembly includes one or more memories；
The storage assembly is for storing one or more computer instruction, wherein one or more computer refers to
It enables calling for the processing component and execute；
The Imaging laser is for emitting imaging Laser；The Infrared laser emission device is for emitting infrared laser；
The processing component is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the infrared laser, determine that there are when light intensity variation, generate to swash for the imaging
The out code of light device；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
Preferably, the processing component is specifically additionally operable to：
Based on the infrared reflectance signal of the infrared laser, determine that generation is directed to the imaging when there is no light intensity variation
The projection of laser instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
Preferably, the projecting apparatus further includes：The infrared laser receiver being connect with the processing component, the processing group
Infrared reflectance signal of the part based on the infrared laser is determined there are when light intensity variation, is generated for the Imaging laser
Out code is specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
In the embodiment of the present application, after emitting infrared laser to the view field by Infrared laser emission device, Ke Yijian
The infrared reflectance signal for surveying the infrared laser, with determine whether there is light intensity variation, in the presence of generate for the laser throw
The out code of shadow instrument after executing the out code, can control the laser-projector and stop transmitting imaging Laser.Institute
It states laser-projector to stop after emitting imaging Laser, also no longer exists Laser emission to the laser projection region, and then no longer
Have in Laser emission to human eye.By way of cutting off Laser emission, reduce the security risk of the laser-projector.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is a kind of flow chart of one embodiment of laser-projector control method of the embodiment of the present application；
Fig. 2 is a kind of flow chart of another embodiment of laser-projector control method of the embodiment of the present application；
Fig. 3 is a kind of structural schematic diagram of one embodiment of laser-projector control device of the embodiment of the present application；
Fig. 4 is a kind of structural schematic diagram of another embodiment of laser-projector control device of the embodiment of the present application；
Fig. 5 is a kind of structural schematic diagram of one embodiment of laser-projector of the embodiment of the present application；
Fig. 6 is a kind of structural schematic diagram of another embodiment of laser-projector of the embodiment of the present application.
Specific implementation mode
Presently filed embodiment is described in detail below in conjunction with accompanying drawings and embodiments, thereby how the application is applied
Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.
The embodiment of the present application is mainly used in the laser equipments such as laser-projector, by for target objects such as human eyes
Detection, cuts off the mode of Laser emission, laser is avoided, to the damage of human body, to improve laser-projector caused by its feature
Safety.
Existing laser-projector mainly utilizes the laser of tri- colors of laser transmitter projects RGB, then by laser projection
Onto projection arrangement.The picture of laser-projector projection can be shown on the projection arrangement.But laser and laser-projector
Between there are certain projector distance, form laser projection region, laser is transmitted in the laser projection region until throwing
On shadow to the projection arrangement.When people enters in the laser projection region, laser has irreversible injury to human eye.
But there is no a kind of protection mechanisms for existing laser-projector, may be injured caused by human body to avoid laser-projector.
Inventor expects whether being that laser-projector increases a kind of protection mechanism, to improve the safety of laser-projector.Invention
People sends through research, and face usually has heat radiation, human eye has the special characteristics of not reflected light, and therefore, inventor, which expects, is
It is no to control the laser-projector, accordingly, inventor according to certain specific characteristic for judging the human eye or human body
Propose the technical solution of the application.
In the embodiment of the present application, the target object in laser projection region by detecting the laser-projector, according to
The target object generates the out code for the laser-projector.After executing the out code, institute can be controlled
It states laser-projector and stops transmitting imaging Laser.After stopping transmitting imaging Laser, laser will not again damage human eye,
The safety of the laser-projector can be improved.
The technical solution of the embodiment of the present application is described in detail below in conjunction with attached drawing.
As shown in Figure 1, being a kind of stream of one embodiment of laser-projector control method provided by the embodiments of the present application
Cheng Tu, the method may include following steps：
101：Determine the corresponding laser projection region of the Imaging laser of the laser-projector.
Wherein, the imaging Laser forms projected image after laser projection area transmissions on projection arrangement.It is described to swash
Can be provided with Imaging laser in light projector, when the imaging Laser transmitting imaging Laser, can on projection arrangement shape
At imaging Laser, the region between Imaging laser and the projection arrangement in the laser-projector constitutes the laser
View field.In general, the imaging Laser of the Imaging laser transmitting of the laser head projecting apparatus is in the laser projection region
Transmission, and project on the projection arrangement.Under normal circumstances, nobody or object in laser projection region are swashing
When there is people in light view field, people, especially human eye may be damaged.
The laser-projector refers to will be by tri- color laser transmitter projects imaging Lasers of RGB, and projection of color images
To projection arrangement.The control method of laser-projector provided by the embodiments of the present application can be applied in the laser-projector,
The Imaging laser transmitting imaging Laser of the laser-projector can be controlled；The control method of the laser-projector can also answer
For the control device independently of laser-projector, which can control the Imaging laser hair of the laser-projector
Penetrate imaging Laser.
102：Emit infrared laser to the laser projection region by Infrared laser emission device.
The infrared laser transmits in the laser projection region, to form laser image on the projection arrangement.
When infrared laser transmits in the laser projection region, there is usually no object or people in the laser projection region, with
The picture of the laser-projector projection is set normally to be shown on projection arrangement.
103：Based on the infrared reflectance signal of the infrared laser, determine there are when light intensity variation, generate for it is described at
As the out code of laser.
It determines that there are light intensity variations to refer to based on the infrared reflectance signal of the infrared laser, is based on the infrared laser
Infrared reflectance signal and infrared laser signal support whether there is difference, if it does, it can be said that bright there are light intensity variations；
The infrared reflectance signal of infrared reflectance signal and preset time that the infrared laser can also be referred to whether there is difference, if deposited
It can be said that bright, there are light intensity variations.
Since in the laser-projector projection process, user may walk about into the laser projection region, especially
Be user's face towards the laser-projector when, laser-projector transmitting laser would generally project to the user face,
Cause the injury to the human eye of user's face.Therefore, can be sentenced by detecting to be used as with the presence or absence of human eye in laser projection region
The disconnected standard for whether needing to close Imaging laser.
Certainly, since human eye is usually located at the face of people, in the infrared reflectance signal based on the infrared laser, determination is deposited
When light intensity changes, before generating the out code for the Imaging laser, the laser projection region can also be detected
In whether there is face, there are when face, then detecting infrared reflectance signal and infrared laser in detecting laser projection region
Change with the presence or absence of light intensity.
When detecting face, then the infrared reflectance signal based on the infrared laser, determination are given birth to there are when light intensity variation
At the out code for the Imaging laser, so that it may be controlled, may be thrown in laser with being directed to the laser-projector
Shadow just controls the projection process of laser-projector between eyes of user, can further avoid laser to eyes
Injury.
Optionally, the face object in the laser projection region may include：
Obtain the image data that camera is directed to laser projection region captured in real-time；
Identify the face object of described image data.
The camera may be mounted on the laser-projector or control device, and be directed to the laser projection area
Domain captured in real-time obtains the image data of shooting.The camera shoots the laser projection region, can swash for described
Light view field captured in real-time.The described image data that obtain in real time can be directed to, by face recognition algorithms, described in identification
Face object in image data.Optionally, the face recognition algorithms can be face recognition algorithms based on deep learning,
Algorithm etc. based on template matches.
The out code can there are generated when the target object in detecting the laser projection region.
Imaging laser of the out code mainly for the laser-projector.It is alternatively possible to according to the laser-projector
The control of Imaging laser identifies, and generates the out code for the Imaging laser.
104：The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
After executing the out code, the laser-projector can stop emitting imaging Laser.
Optionally, the Infrared laser emission device emits to the laser projection region, can be projected on projection arrangement
For laser image.There is usually no the objects such as people or object in the laser projection region, so that the imaging Laser can be straight
Line is transmitted to form projected image on projection arrangement.But since there is usually no any screenings in the laser projection region
Block material causes people that can be moved freely in laser projection region, and when people enters into laser projection region, laser may be to people
It damages.And human eye is unable to reflection light as a kind of special imaging arrangement, there are extinction effects.Therefore, it can incite somebody to action
The human eye detects in the laser projection region there are when target object as target object, can be directed to the laser
The Imaging laser of projecting apparatus executes corresponding out code.
Optionally, described to execute the out code, with control the laser-projector stop transmitting imaging Laser can be with
Including：The out code is executed, halt instruction is generated；The halt instruction is sent to the Imaging laser, so that described
Imaging laser responds the halt instruction, stops transmitting imaging Laser.
Optionally, described to execute the out code, with control the Imaging laser stop transmitting imaging Laser can be with
Including：The out code is executed, to respond the out code, stops transmitting imaging Laser.
Optionally, when the Imaging laser stops transmitting imaging Laser, other operational modules in laser-projector are also
Former working condition can be kept, with when can't detect the target object, the laser-projector can be promptly restored to just
Normal projection state.In particular, the scan module in the laser-projector, can keep original working condition constant, with
The imaging Laser for being directed to a variety of colors of the Imaging laser transmitting of laser-projector at any time is scanned at any time.
In the embodiment of the present application, after emitting infrared laser to the view field by Infrared laser emission device, Ke Yijian
The infrared reflectance signal for surveying the infrared laser, to determine whether there is light intensity variation, in the presence of, it can generate and swash for described
The out code of light projector when executing the out code, can control the laser-projector and stop transmitting imaging Laser,
Laser-projector stops transmitting imaging Laser, and also just there is no laser transmits in the laser projection region, can be to avoid sharp
Injury of the light to human body improves the safety that laser uses.
As shown in Fig. 2, be a kind of flow chart of another embodiment of laser control method provided by the embodiments of the present application,
This method may include following steps：
201：Determine the corresponding laser projection region of the Imaging laser of the laser-projector.
202：Emit infrared laser to the laser projection region by Infrared laser emission device.
203：Based on the infrared reflectance signal of the infrared laser, determine there are when light intensity variation, generate for it is described at
As the out code of laser.
204：The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
The step of step 201~204 are with embodiment 101~104 shown in FIG. 1 are identical, and details are not described herein.
205：Based on the infrared reflectance signal of the infrared laser, determine there is no light intensity variation, generate for it is described at
As the projection of laser instructs.
The projection instruction of the laser-projector can be the infrared laser signal reflected in laser projection region and institute
Stating infrared laser, there is no generated when light intensity variation.
User may be at mobile status, and user can detect described in real time when moving out the laser projection region
Infrared laser reflection signal in laser projection region can when being not detected there are when light intensity variation with the presence or absence of light intensity variation
To determine that user has been no longer on the laser projection region.At this point, laser-projector can re-emit imaging Laser throwing
Shadow image.
206：The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
The laser-projector can in laser projection region there is no infrared reflectance signal with original infrared laser it is red
When the light intensity variation of external signal, the Imaging laser can restart transmitting imaging under the control of the projection instruction
Laser.
Optionally, when being controlled to stop transmitting imaging Laser, other operational modules can be kept the Imaging laser
Former working condition is constant, with after executing the projection instruction, the laser-projector can re-emit imaging Laser.
In the embodiment of the present application, the infrared reflectance signal and the former infrared laser that are reflected in detecting the laser projection region
When compared to not there is no light intensity variation, the projection produced for the laser-projector instructs, and executes described instruction to control
The Imaging laser stops transmitting imaging Laser.And the infrared reflectance signal reflected in detecting the laser projection region
There are when light intensity variation compared with former infrared laser, the Imaging laser can continue to project, and can keep in this way
The duration of the Imaging laser working condition, so that convenient while the use process safety of the laser-projector
Change.
As one embodiment, the infrared reflectance signal based on the infrared laser is determined there are when light intensity variation,
It generates and may include for the out code of the Imaging laser：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
The infrared laser refers to being emitted by Infrared laser emission device.The infrared laser can projection arrangement,
It is reflected on not transparent device such as human body.The infrared laser is different from the imaging Laser.The imaging Laser be by
The laser for the projected image on projection arrangement emitted as laser.The infrared laser is sent out by Infrared laser emission device
It penetrates, blocks or absorb with the presence or absence of light for detecting in laser projection region.
When the Infrared laser emission is to user, user can reflect the infrared laser, still, user certain
A little special parts, such as human eye do not have reflection function, therefore, this can be utilized not have reflection characteristic, can receive described sharp
The laser of optical projection device reflection, and according to the first intensity signal of the infrared reflectance signal of reflection and the infrared laser not emitted
The second intensity signal be compared, if the two differs greatly, illustrate that there are target objects in the laser region.
First preset condition can be determined according to the human eye in the relative area of the infrared laser.Assuming that institute
The view field for stating infrared laser projection is S, and the common area of human eye is s, calculates the human eye area and the view field
Ratio be D, it is assumed that the first intensity signal of the infrared laser is Q1, then Intensity threshold can be D*Q1, and described first is pre-
If the difference that condition can be the first intensity signal Q1 and the second intensity signal Q2 is more than the Intensity threshold D*Q1.
As a kind of possible realization method, the infrared laser of the determination Infrared laser emission device transmitting
The first intensity signal may include：
It detects in the laser projection region there are when face, infrared laser is emitted by infrared transmitter, and determine institute
State the first intensity signal of infrared laser.
The human eye is located on face, when detecting face, can usually determine the human eye on the face.Therefore,
In order to keep the detection process of the light intensity variation more acurrate, the face in the laser projection region and then inspection can be detected
Survey the face in the laser projection region.
It, can be when people enters laser projection region, according to reflection infrared signal and original for the extinction effect of human eye
The light-intensity difference of infrared laser when not projecting judges that there are laser projection devices in the laser projection region.Sentenced by this
Disconnected mode can make deterministic process specific aim stronger, accuracy is more by the feature of object to determine whether there are target
It is high.
In the embodiment of the present application, can not it be thrown according to reflection infrared signal and original when people enters laser projection region
The light-intensity difference of infrared laser when shadow judges that there are laser projection devices in the laser projection region.Accurate judgement whether
After target object, target object can be directed to, the higher protection mechanism of safety is provided.
As shown in figure 3, the structure for a kind of one embodiment of laser-projector control device of the embodiment of the present application is shown
It is intended to, the equipment may include storage assembly 302, the processing component 301 being connect with the storage assembly；With the processing
The Infrared laser emission device 303 of device connection, the Infrared laser emission device 303 is for emitting infrared laser；
Wherein, the storage assembly 302 is made of one or more processors, and the processing component 301 is by one or more
A processor is constituted；One or more of processors are for storing one or more computer instruction, the computer instruction
It calls and executes for the processing component 301；
The processing component 301 is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the Infrared laser emission device, determines there are when light intensity variation, generate for described
The out code of Imaging laser；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
Wherein, the imaging Laser forms projected image after laser projection area transmissions on projection arrangement.It is described to swash
Can be provided with Imaging laser in light projector, when the imaging Laser transmitting imaging Laser, can on projection arrangement shape
At imaging Laser, the region between Imaging laser and the projection arrangement in the laser-projector constitutes the laser
View field.In general, the imaging Laser of the Imaging laser transmitting of the laser head projecting apparatus is in the laser projection region
Transmission, and project on the projection arrangement.Under normal circumstances, nobody or object in laser projection region are swashing
When there is people in light view field, people, especially human eye may be damaged.
The laser-projector refers to will be by tri- color laser transmitter projects imaging Lasers of RGB, and projection of color images
To projection arrangement.The Imaging laser of the laser-projector emits imaging Laser.
The infrared laser transmits in the laser projection region, to form laser image on the projection arrangement.
When infrared laser transmits in the laser projection region, there is usually no object or people in the laser projection region, with
The picture of the laser-projector projection is set normally to be shown on projection arrangement.
It determines that there are light intensity variations to refer to based on the infrared reflectance signal of the infrared laser, is based on the infrared laser
Infrared reflectance signal and infrared laser signal support whether there is difference, if it does, it can be said that bright there are light intensity variations；
The infrared reflectance signal of infrared reflectance signal and preset time that the infrared laser can also be referred to whether there is difference, if deposited
It can be said that bright, there are light intensity variations.
Since in the laser-projector projection process, user may walk about into the laser projection region, especially
Be user's face towards the laser-projector when, laser-projector transmitting laser would generally project to the user face,
Cause the injury to the human eye of user's face.Therefore, can be sentenced by detecting to be used as with the presence or absence of human eye in laser projection region
The disconnected standard for whether needing to close Imaging laser.
Certainly, since human eye is usually located at the face of people, in the infrared reflectance signal based on the infrared laser, determination is deposited
When light intensity changes, before generating the out code for the Imaging laser, the laser projection region can also be detected
In whether there is face, there are when face, then detecting infrared reflectance signal and infrared laser in detecting laser projection region
Change with the presence or absence of light intensity.
When detecting face, then the infrared reflectance signal based on the infrared laser, determination are given birth to there are when light intensity variation
At the out code for the Imaging laser, so that it may be controlled, may be thrown in laser with being directed to the laser-projector
Shadow just controls the projection process of laser-projector between eyes of user, can further avoid laser to eyes
Injury.
Optionally, the processing component determines that the face object in laser projection region can be specifically：
Obtain the image data that camera is directed to laser projection region captured in real-time；
Identify the face object of described image data.
The camera may be mounted on the laser-projector or control device, and be directed to the laser projection area
Domain captured in real-time obtains the image data of shooting.The camera shoots the laser projection region, can swash for described
Light view field captured in real-time.The described image data that obtain in real time can be directed to, by face recognition algorithms, described in identification
Face object in image data.Optionally, the face recognition algorithms can be face recognition algorithms based on deep learning,
Algorithm etc. based on template matches.
The out code can there are generated when the target object in detecting the laser projection region.
Imaging laser of the out code mainly for the laser-projector.It is alternatively possible to according to the laser-projector
The control of Imaging laser identifies, and generates the out code for the Imaging laser.
After executing the out code, the laser-projector can stop emitting imaging Laser.
Optionally, the Infrared laser emission device emits to the laser projection region, can be projected on projection arrangement
For laser image.There is usually no the objects such as people or object in the laser projection region, so that the imaging Laser can be straight
Line is transmitted to form projected image on projection arrangement.But since there is usually no any screenings in the laser projection region
Block material causes people that can be moved freely in laser projection region, and when people enters into laser projection region, laser may be to people
It damages.And human eye is unable to reflection light as a kind of special imaging arrangement, there are extinction effects.Therefore, it can incite somebody to action
The human eye detects in the laser projection region there are when target object as target object, can be directed to the laser
The Imaging laser of projecting apparatus executes corresponding out code.
Optionally, the processing component executes the out code, stops transmitting imaging to control the laser-projector
Laser can be specifically：The out code is executed, halt instruction is generated；The halt instruction is sent to the imaging Laser
Device stops transmitting imaging Laser so that the Imaging laser responds the halt instruction.
Optionally, the processing component executes the out code, stops transmitting imaging to control the Imaging laser
Laser can be specifically：The out code is executed, to respond the out code, stops transmitting imaging Laser.
Optionally, when the Imaging laser stops transmitting imaging Laser, other operational modules in laser-projector are also
Former working condition can be kept, with when can't detect the target object, the laser-projector can be promptly restored to just
Normal projection state.In particular, the scan module in the laser-projector, can keep original working condition constant, with
The imaging Laser for being directed to a variety of colors of the Imaging laser transmitting of laser-projector at any time is scanned at any time.
In the embodiment of the present application, after emitting infrared laser to the view field by Infrared laser emission device, Ke Yijian
The infrared reflectance signal for surveying the infrared laser, to determine whether there is light intensity variation, in the presence of, it can generate and swash for described
The out code of light projector when executing the out code, can control the laser-projector and stop transmitting imaging Laser,
Laser-projector stops transmitting imaging Laser, and also just there is no laser transmits in the laser projection region, can be to avoid sharp
Injury of the light to human body improves the safety that laser uses.
As one embodiment, the processing component can be also used for：
It based on the infrared reflectance signal of the infrared laser, determines there is no light intensity variation, generates and swash for the imaging
The projection of light device instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
The projection instruction of the laser-projector can be the infrared laser signal reflected in laser projection region and institute
Stating infrared laser, there is no generated when light intensity variation.
User may be at mobile status, and user can detect described in real time when moving out the laser projection region
Infrared laser reflection signal in laser projection region can when being not detected there are when light intensity variation with the presence or absence of light intensity variation
To determine that user has been no longer on the laser projection region.At this point, laser-projector can re-emit imaging Laser throwing
Shadow image.
The laser-projector can in laser projection region there is no infrared reflectance signal with original infrared laser it is red
When the light intensity variation of external signal, the Imaging laser can restart transmitting imaging under the control of the projection instruction
Laser.
Optionally, when being controlled to stop transmitting imaging Laser, other operational modules can be kept the Imaging laser
Former working condition is constant, with after executing the projection instruction, the laser-projector can re-emit imaging Laser.
In the embodiment of the present application, the infrared reflectance signal and the former infrared laser that are reflected in detecting the laser projection region
When compared to not there is no light intensity variation, the projection produced for the laser-projector instructs, and executes described instruction to control
The Imaging laser stops transmitting imaging Laser.And the infrared reflectance signal reflected in detecting the laser projection region
There are when light intensity variation compared with former infrared laser, the Imaging laser can continue to project, and can keep in this way
The duration of the Imaging laser working condition, so that convenient while the use process safety of the laser-projector
Change.
As another embodiment, as shown in figure 4, the laser-projector control device can also include：Infrared laser
Receiver 401, reflection signal of the processing component based on the infrared laser determine that generation is directed to there are when light intensity variation
The out code of the Imaging laser can be specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by the infrared remote receiver 401；Determine the infrared external reflection
Second intensity signal of signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
The infrared laser refers to being emitted by Infrared laser emission device.The infrared laser can projection arrangement,
It is reflected on not transparent device such as human body.The infrared laser is different from the imaging Laser.The imaging Laser be by
The laser for the projected image on projection arrangement emitted as laser.The infrared laser is sent out by Infrared laser emission device
It penetrates, blocks or absorb with the presence or absence of light for detecting in laser projection region.
When the Infrared laser emission is to user, user can reflect the infrared laser, still, user certain
A little special parts, such as human eye do not have reflection function, therefore, this can be utilized not have reflection characteristic, can receive described sharp
The laser of optical projection device reflection, and according to the first intensity signal of the infrared reflectance signal of reflection and the infrared laser not emitted
The second intensity signal be compared, if the two differs greatly, illustrate that there are target objects in the laser region.
First preset condition can be determined according to the human eye in the relative area of the infrared laser.Assuming that institute
The view field for stating infrared laser projection is S, and the common area of human eye is s, calculates the human eye area and the view field
Ratio be D, it is assumed that the first intensity signal of the infrared laser is Q1, then Intensity threshold can be D*Q1, and described first is pre-
If the difference that condition can be the first intensity signal Q1 and the second intensity signal Q2 is more than the Intensity threshold D*Q1.
As a kind of possible realization method, the processing component determines the described red of the Infrared laser emission device transmitting
First intensity signal of outer laser can be specifically：
By, there are when face, being emitted by infrared transmitter red in laser projection region described in Face datection component detection
Outer laser, and determine the first intensity signal of the infrared laser.
The human eye is located on face, when detecting face, can usually determine the human eye on the face.Therefore,
In order to keep the detection process of the light intensity variation more acurrate, the face in the laser projection region and then inspection can be detected
Survey the face in the laser projection region.
It, can be when people enters laser projection region, according to reflection infrared signal and original for the extinction effect of human eye
The light-intensity difference of infrared laser when not projecting judges that there are laser projection devices in the laser projection region.
In the embodiment of the present application, can not it be thrown according to reflection infrared signal and original when people enters laser projection region
The light-intensity difference of infrared laser when shadow judges that there are laser projection devices in the laser projection region.Pass through this judgement side
Formula can make deterministic process specific aim stronger, accuracy higher by the feature of object to determine whether there are target.
After accurate judgement whether there is target object, target object can be directed to, the higher protection mechanism of safety is provided.
As shown in figure 5, the structural schematic diagram of one embodiment for a kind of laser-projector of the embodiment of the present application, described
Laser-projector may include：Imaging laser 501 and Infrared laser emission device 502, processing component 503 and with the place
Manage the storage assembly 504 that component 503 connects；The processing component includes one or more processors, and the storage assembly includes
One or more memories；
The storage assembly 504 is for storing one or more computer instruction, wherein one or more computer
Instruction is called for the processing component and is executed；
The Imaging laser 501 is for emitting imaging Laser；The Infrared laser emission device 502 is infrared sharp for emitting
Light；
The processing component 503 is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the infrared laser, determine that there are when light intensity variation, generate to swash for the imaging
The out code of light device；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
The Imaging laser 501 is for emitting imaging Laser, to form projected image on projection arrangement.
Optionally, the Infrared laser emission device can be connect with the processing component, in the control of the processing component
System is lower to emit infrared laser, and infrared projection is formed on projection arrangement.
Wherein, the imaging Laser forms projected image after laser projection area transmissions on projection arrangement.It is described to swash
Can be provided with Imaging laser in light projector, when the imaging Laser transmitting imaging Laser, can on projection arrangement shape
At imaging Laser, the region between Imaging laser and the projection arrangement in the laser-projector constitutes the laser
View field.In general, the imaging Laser of the Imaging laser transmitting of the laser head projecting apparatus is in the laser projection region
Transmission, and project on the projection arrangement.Under normal circumstances, nobody or object in laser projection region are swashing
When there is people in light view field, people, especially human eye may be damaged.
The laser-projector refers to will be by tri- color laser transmitter projects imaging Lasers of RGB, and projection of color images
To projection arrangement.The Imaging laser of the laser-projector emits imaging Laser.
The infrared laser transmits in the laser projection region, to form laser image on the projection arrangement.
When infrared laser transmits in the laser projection region, there is usually no object or people in the laser projection region, with
The picture of the laser-projector projection is set normally to be shown on projection arrangement.
It determines that there are light intensity variations to refer to based on the infrared reflectance signal of the infrared laser, is based on the infrared laser
Infrared reflectance signal and infrared laser signal support whether there is difference, if it does, it can be said that bright there are light intensity variations；
The infrared reflectance signal of infrared reflectance signal and preset time that the infrared laser can also be referred to whether there is difference, if deposited
It can be said that bright, there are light intensity variations.
Since in the laser-projector projection process, user may walk about into the laser projection region, especially
Be user's face towards the laser-projector when, laser-projector transmitting laser would generally project to the user face,
Cause the injury to the human eye of user's face.Therefore, can be sentenced by detecting to be used as with the presence or absence of human eye in laser projection region
The disconnected standard for whether needing to close Imaging laser.
Certainly, since human eye is usually located at the face of people, in the infrared reflectance signal based on the infrared laser, determination is deposited
When light intensity changes, before generating the out code for the Imaging laser, the laser projection region can also be detected
In whether there is face, there are when face, then detecting infrared reflectance signal and infrared laser in detecting laser projection region
Change with the presence or absence of light intensity.
When detecting face, then the infrared reflectance signal based on the infrared laser, determination are given birth to there are when light intensity variation
At the out code for the Imaging laser, so that it may be controlled, may be thrown in laser with being directed to the laser-projector
Shadow just controls the projection process of laser-projector between eyes of user, can further avoid laser to eyes
Injury.
Optionally, the processing component determines that the face object in laser projection region can be specifically：
Obtain the image data that camera is directed to laser projection region captured in real-time；
Identify the face object of described image data.
The camera may be mounted on the laser-projector or control device, and be directed to the laser projection area
Domain captured in real-time obtains the image data of shooting.The camera shoots the laser projection region, can swash for described
Light view field captured in real-time.The described image data that obtain in real time can be directed to, by face recognition algorithms, described in identification
Face object in image data.Optionally, the face recognition algorithms can be face recognition algorithms based on deep learning,
Algorithm etc. based on template matches.
The out code can there are generated when the target object in detecting the laser projection region.
Imaging laser of the out code mainly for the laser-projector.It is alternatively possible to according to the laser-projector
The control of Imaging laser identifies, and generates the out code for the Imaging laser.
After executing the out code, the laser-projector can stop emitting imaging Laser.
Optionally, the Infrared laser emission device emits to the laser projection region, can be projected on projection arrangement
For laser image.There is usually no the objects such as people or object in the laser projection region, so that the imaging Laser can be straight
Line is transmitted to form projected image on projection arrangement.But since there is usually no any screenings in the laser projection region
Block material causes people that can be moved freely in laser projection region, and when people enters into laser projection region, laser may be to people
It damages.And human eye is unable to reflection light as a kind of special imaging arrangement, there are extinction effects.Therefore, it can incite somebody to action
The human eye detects in the laser projection region there are when target object as target object, can be directed to the laser
The Imaging laser of projecting apparatus executes corresponding out code.
Optionally, the processing component executes the out code, stops transmitting imaging to control the laser-projector
Laser can be specifically：The out code is executed, halt instruction is generated；The halt instruction is sent to the imaging Laser
Device stops transmitting imaging Laser so that the Imaging laser responds the halt instruction.
Optionally, the processing component executes the out code, stops transmitting imaging to control the Imaging laser
Laser can be specifically：The out code is executed, to respond the out code, stops transmitting imaging Laser.
Optionally, when the Imaging laser stops transmitting imaging Laser, other operational modules in laser-projector are also
Former working condition can be kept, with when can't detect the target object, the laser-projector can be promptly restored to just
Normal projection state.In particular, the scan module in the laser-projector, can keep original working condition constant, with
The imaging Laser for being directed to a variety of colors of the Imaging laser transmitting of laser-projector at any time is scanned at any time.
In the embodiment of the present application, after emitting infrared laser to the view field by Infrared laser emission device, Ke Yijian
The infrared reflectance signal for surveying the infrared laser, to determine whether there is light intensity variation, in the presence of, it can generate and swash for described
The out code of light projector when executing the out code, can control the laser-projector and stop transmitting imaging Laser,
Laser-projector stops transmitting imaging Laser, and also just there is no laser transmits in the laser projection region, can be to avoid sharp
Injury of the light to human body improves the safety that laser uses.
As one embodiment, the processing component is specifically additionally operable to：
Based on the infrared reflectance signal of the infrared laser, determine that generation is directed to the imaging when there is no light intensity variation
The projection of laser instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
The projection instruction of the laser-projector can be the infrared laser signal reflected in laser projection region and institute
Stating infrared laser, there is no generated when light intensity variation.
User may be at mobile status, and user can detect described in real time when moving out the laser projection region
Infrared laser reflection signal in laser projection region can when being not detected there are when light intensity variation with the presence or absence of light intensity variation
To determine that user has been no longer on the laser projection region.At this point, laser-projector can re-emit imaging Laser throwing
Shadow image.
The laser-projector can in laser projection region there is no infrared reflectance signal with original infrared laser it is red
When the light intensity variation of external signal, the Imaging laser can restart transmitting imaging under the control of the projection instruction
Laser.
Optionally, when being controlled to stop transmitting imaging Laser, other operational modules can be kept the Imaging laser
Former working condition is constant, with after executing the projection instruction, the laser-projector can re-emit imaging Laser.
In the embodiment of the present application, the infrared reflectance signal and the former infrared laser that are reflected in detecting the laser projection region
When compared to not there is no light intensity variation, the projection produced for the laser-projector instructs, and executes described instruction to control
The Imaging laser stops transmitting imaging Laser.And the infrared reflectance signal reflected in detecting the laser projection region
There are when light intensity variation compared with former infrared laser, the Imaging laser can continue to project, and can keep in this way
The duration of the Imaging laser working condition, so that convenient while the use process safety of the laser-projector
Change.
As another embodiment, as shown in fig. 6, the projecting apparatus further includes：It is connect with the processing component infrared
Laser pickoff 601, infrared reflectance signal of the processing component 503 based on the infrared laser determine that there are light intensity variations
When, the out code generated for the Imaging laser 501 is specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determines and exist
Light intensity changes, and generates the out code for the Imaging laser.
The infrared laser refers to being emitted by Infrared laser emission device.The infrared laser can projection arrangement,
It is reflected on not transparent device such as human body.The infrared laser is different from the imaging Laser.The imaging Laser be by
The laser for the projected image on projection arrangement emitted as laser.The infrared laser is sent out by Infrared laser emission device
It penetrates, blocks or absorb with the presence or absence of light for detecting in laser projection region.
When the Infrared laser emission is to user, user can reflect the infrared laser, still, user certain
A little special parts, such as human eye do not have reflection function, therefore, this can be utilized not have reflection characteristic, can receive described sharp
The laser of optical projection device reflection, and according to the first intensity signal of the infrared reflectance signal of reflection and the infrared laser not emitted
The second intensity signal be compared, if the two differs greatly, illustrate that there are target objects in the laser region.
First preset condition can be determined according to the human eye in the relative area of the infrared laser.Assuming that institute
The view field for stating infrared laser projection is S, and the common area of human eye is s, calculates the human eye area and the view field
Ratio be D, it is assumed that the first intensity signal of the infrared laser is Q1, then Intensity threshold can be D*Q1, and described first is pre-
If the difference that condition can be the first intensity signal Q1 and the second intensity signal Q2 is more than the Intensity threshold D*Q1.
As a kind of possible realization method, the processing component determines the described red of the Infrared laser emission device transmitting
First intensity signal of outer laser can be specifically：
It detects in the laser projection region there are when face, infrared laser is emitted by infrared transmitter, and determine institute
State the first intensity signal of infrared laser.
The human eye is located on face, when detecting face, can usually determine the human eye on the face.Therefore,
In order to keep the detection process of the light intensity variation more acurrate, the face in the laser projection region and then inspection can be detected
Survey the face in the laser projection region.
It, can be when people enters laser projection region, according to reflection infrared signal and original for the extinction effect of human eye
The light-intensity difference of infrared laser when not projecting judges that there are laser projection devices in the laser projection region.Sentenced by this
Disconnected mode can make deterministic process specific aim stronger, accuracy is more by the feature of object to determine whether there are target
It is high.
In the embodiment of the present application, can not it be thrown according to reflection infrared signal and original when people enters laser projection region
The light-intensity difference of infrared laser when shadow judges that there are laser projection devices in the laser projection region.Accurate judgement whether
After target object, target object can be directed to, the higher protection mechanism of safety is provided.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetic storage apparatus
Or any other non-transmission medium, it can be used for storage and can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include non-temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
Some vocabulary has such as been used to censure specific components in specification and claim.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer in receivable error range, those skilled in the art can be described within a certain error range solution
Technical problem basically reaches the technique effect.In addition, " coupling " word includes any direct and indirect electric property coupling herein
Means.Therefore, if it is described herein that a first device is coupled to a second device, then representing the first device can directly electrical coupling
It is connected to the second device, or the second device indirectly electrically coupled through other devices or coupling means.Specification
Subsequent descriptions be implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application,
It is not limited to scope of the present application.The protection domain of the application is when subject to appended claims institute defender.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that commodity or system including a series of elements include not only those elements, but also include not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that including the element commodity or system in also
There are other identical elements.
Several preferred embodiments of the application have shown and described in above description, but as previously described, it should be understood that the application
Be not limited to form disclosed herein, be not to be taken as excluding other embodiments, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in application contemplated scope described herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection domain of appended claims.
Claims (9)
1. a kind of laser-projector control method, which is characterized in that including：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the infrared laser, determines there are when light intensity variation, generate and be directed to the Imaging laser
Out code；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
2. according to the method described in claim 1, it is characterized in that, described execute the out code, to control the imaging
After laser stops transmitting imaging Laser, further include：
It based on the infrared reflectance signal of the infrared laser, determines there is no light intensity variation, generates and be directed to the Imaging laser
Projection instruction；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
3. according to the method described in claim 1, it is characterized in that, the infrared reflectance signal based on the infrared laser,
Determining that there are out codes when light intensity variation, generated for the Imaging laser includes：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determine that there are light intensity
Variation generates the out code for the Imaging laser.
4. a kind of laser-projector control device, which is characterized in that including, storage assembly, the place being connect with the storage assembly
Manage component, the Infrared laser emission device being connected to the processor；The Infrared laser emission device is for emitting infrared laser；
Wherein, the storage assembly includes one or more memories, and the processing component includes one or more processors；Institute
State one or more memories for store one or more computer instruction, the computer instruction is for the processing component tune
With execution；
The processing component is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the Infrared laser emission device, determines there are when light intensity variation, generate and be directed to the imaging
The out code of laser；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
5. equipment according to claim 4, which is characterized in that the processing component is additionally operable to：
It based on the infrared reflectance signal of the infrared laser, determines there is no light intensity variation, generates and be directed to the Imaging laser
Projection instruction；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
6. equipment according to claim 4, which is characterized in that the equipment further includes：It is connect with the processing component
Infrared laser receiver；Reflection signal of the processing component based on the infrared laser is determined there are when light intensity variation, is generated
Out code for the Imaging laser is specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by the infrared remote receiver；Determine the of the infrared reflectance signal
Two intensity signals；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determine that there are light intensity
Variation generates the out code for the Imaging laser.
7. a kind of laser-projector, which is characterized in that including：Imaging laser and Infrared laser emission device, processing component with
And the storage assembly being connect with the processing component；The processing component includes one or more processors, the storage assembly
Including one or more memories；
The storage assembly is for storing one or more computer instruction, wherein one or more computer instruction supplies
The processing component, which calls, to be executed；
The Imaging laser is for emitting imaging Laser；The Infrared laser emission device is for emitting infrared laser；
The processing component is used for：
Determine the corresponding laser projection region of the Imaging laser of the laser-projector；
Emit infrared laser to the laser projection region by Infrared laser emission device；
Based on the infrared reflectance signal of the infrared laser, determines there are when light intensity variation, generate and be directed to the Imaging laser
Out code；
The out code is executed, stops transmitting imaging Laser to control the Imaging laser.
8. laser-projector according to claim 7, which is characterized in that the processing component is specifically additionally operable to：
Based on the infrared reflectance signal of the infrared laser, determine that generation is directed to the imaging Laser when there is no light intensity variation
The projection of device instructs；
The projection instruction is executed, imaging Laser is re-emitted to control the Imaging laser.
9. laser-projector according to claim 7, which is characterized in that the projecting apparatus further includes：With the processing group
The infrared laser receiver of part connection, infrared reflectance signal of the processing component based on the infrared laser determine that there are light
When strong variation, the out code generated for the Imaging laser is specifically：
Determine the first intensity signal of the infrared laser of the Infrared laser emission device transmitting；
The infrared reflectance signal of the infrared laser is received by infrared remote receiver；
Determine the second intensity signal of the infrared reflectance signal；
If the difference of first intensity signal and second intensity signal meets the first preset condition, determine that there are light intensity
Variation generates the out code for the Imaging laser.
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| CN201810040128.9A CN108281100B (en) | 2018-01-16 | 2018-01-16 | Laser projector control method, laser projector control device and laser projector |
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| CN112822468A (en) * | 2020-12-31 | 2021-05-18 | 成都极米科技股份有限公司 | Projection control method and device, projection equipment and laser controller |
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