CN109917808A - The control method of flight time component, terminal and flight time component - Google Patents
The control method of flight time component, terminal and flight time component Download PDFInfo
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- CN109917808A CN109917808A CN201910229450.0A CN201910229450A CN109917808A CN 109917808 A CN109917808 A CN 109917808A CN 201910229450 A CN201910229450 A CN 201910229450A CN 109917808 A CN109917808 A CN 109917808A
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Abstract
This application discloses a kind of flight time components.Flight time component includes flight time mould group and control system.Flight time mould group includes laser light source, and control system includes galvanometer circuit and application processor.Galvanometer circuit connect with laser light source and is used to detect the operating current of laser light source.In preset first duration, when the duration that operating current characterization laser light source is in effective working condition is greater than preset duration threshold value, or in preset second duration, when the luminous energy that operating current characterizes laser light source is greater than preset energy threshold, application processor issues closing control signal to close laser light source.In preset first duration, when the duration that operating current characterization laser light source is in effective working condition is greater than preset duration threshold value, or in preset second duration, when the luminous energy that operating current characterizes laser light source is greater than preset energy threshold, laser light source is closed, can avoid hurting user.
Description
Technical field
This application involves consumer electronics technical fields, more specifically, are related to a kind of flight time component, terminal and fly
The control method of row time component.
Background technique
Depth acquisition device can be configured on mobile phone, a kind of depth acquisition device can use flight time (Time
OfFlight, TOF) technology obtains the depth of target object, and concrete mode is that control light source to target object emits laser, then is connect
The laser reflected by target object is received, by calculating time difference of the laser between mobile phone and target object back and forth to obtain target
The depth of object, and when the work of depth acquisition device is abnormal, laser is easy to hurt user, and depth acquisition device makes
It is not high with safety.
Summary of the invention
The application embodiment provides the control method of a kind of flight time component, terminal and flight time component.
The flight time component of the application embodiment includes flight time mould group and control system, the flight time mould
Group includes laser light source, and the control system includes galvanometer circuit and application processor.The galvanometer circuit and the laser light
Source connects and is used to detect the operating current of the laser light source.In preset first duration, the operating current characterizes institute
When stating laser light source and being in the duration of effective working condition and be greater than preset duration threshold value, or in preset second duration, institute
When stating operating current and characterizing the luminous energy of the laser light source and be greater than preset energy threshold, the application processor, which issues, to be closed
Control signal is closed to close the laser light source.
The terminal of the application embodiment includes the flight time component of shell and the application embodiment, when the flight
Between component be mounted in the shell.
The control method of the flight time component of the application embodiment is for controlling flight time component, when the flight
Between component include laser light source, the control method includes: to detect the operating current of the laser light source；Judge preset
In one duration, the operating current characterizes the laser light source and is in the duration of effective working condition whether be greater than preset duration
Threshold value, or judge in preset second duration, whether the luminous energy that the operating current characterizes the laser light source is greater than
Preset energy threshold；And if so, closing control signal is issued to close the laser light source.
In the control method of the flight time component of the application embodiment, terminal and flight time component, preset
In first duration, when the duration that operating current characterization laser light source is in effective working condition is greater than preset duration threshold value, or
In preset second duration, when the luminous energy that operating current characterizes laser light source is greater than preset energy threshold, close at this time
Laser light source is closed, can avoid hurting user, the safety in utilization of flight time component is higher.
The additional aspect and advantage of presently filed embodiment will be set forth in part in the description, partially will be from following
Description in become obvious, or recognized by the practice of presently filed embodiment.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the application is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is a kind of structural schematic diagram of the terminal of embodiment of the application；
Fig. 2 is a kind of flight time mould group of embodiment of the application and the structural schematic diagram of control system；
Fig. 3 is a kind of schematic cross-section of embodiment terminal of the application；
Fig. 4 and Fig. 5 is the waveform diagram for the operating current that the galvanometer circuit of the application certain embodiments detects；
Fig. 6 is a kind of module diagram of the control system of embodiment of the application；
Fig. 7 is a kind of flow diagram of the control method of the flight time component of embodiment of the application；
Fig. 8 is a kind of module diagram of the control system of embodiment of the application；
Fig. 9 is that a kind of structure of driving circuit of embodiment of the application and signal move towards schematic diagram；
Figure 10 to Figure 12 is the module diagram of the control system of the application certain embodiments；
Figure 13 is that a kind of signal generator of embodiment of the application issues the schematic diagram of a scenario of prompt information.
Main appended drawing reference explanation:
Terminal 1000, flight time component 100, flight time mould group 10, optical transmitting set 11, laser light source 111, optics member
Part 112, transmitting shell 113, accommodating chamber 114, light-emitting window 115, optical receiver 12, lens 121, sensor 122, control module
1221, substrate 13, control system 20, galvanometer circuit 22, driving circuit 23, application processor 24, modulation module 25, power module
26, shell 200, signal generator 300, display screen 301, distance detector 400, light detector 500, cover board 600.
Specific embodiment
Presently filed embodiment is described further below in conjunction with attached drawing.Same or similar label is from beginning in attached drawing
To the same or similar element of expression or element with the same or similar functions eventually.
In addition, the presently filed embodiment described with reference to the accompanying drawing is exemplary, it is only used for explaining the application's
Embodiment, and should not be understood as the limitation to the application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of level height locating for fisrt feature less than second feature institute
The level height at place.
Fig. 1 and Fig. 2 is please referred to, the terminal 1000 of the application embodiment includes flight time component 100 and shell 200.
Flight time component 100 includes flight time mould group 10 and control system 20.Terminal 1000 can use the control of control system 20
Flight time mould group 10 obtains the depth information of target object, to carry out the operation such as ranging, modeling using depth information.Terminal
1000 specifically can be mobile phone, tablet computer, remote controler, intelligent wearable device etc., and terminal 1000, which can also be, is mounted on movement
Plug-in device on platform (such as unmanned plane, automobile etc.).The embodiment of the present application is illustrated so that terminal 1000 is mobile phone as an example,
It is appreciated that the concrete form of terminal 1000 is not limited to mobile phone.
Referring to Fig. 1, flight time mould group 10 may be mounted in shell 200, specifically, in one example, shell
Through-hole is offered on 200, flight time mould group 10 is mounted in shell 200 simultaneously and through-hole alignment, through-hole can be provided with shell
200 front or the back side；Referring to Fig. 3, in another example, flight time mould group 10 is mounted in shell 200 and is aligned
Display screen 301 and the cover board of terminal 1,000 600 are arranged under display screen 301 and cover board 600, flight time mould group 10 emits
Optical signal pass through display screen 301 and cover board 600 enter it is extraneous, and after extraneous optical signal passes through cover board 600 and display screen 301
It is received by flight time mould group 10, wherein the dotted line in optical signals Fig. 3 indicates.
Incorporated by reference to Fig. 2, flight time mould group 10 includes optical transmitting set 11 and optical receiver 12.Optical transmitting set 11 and light-receiving
Device 12 can be set on the same substrate 13.Optical transmitting set 11 includes laser light source 111, optical element 112 and transmitting shell
113。
Laser light source 111 can be vertical cavity surface emitting laser (Vertical Cavity Surface Emitting
Laser, VCSEL), laser light source 111 can be used for emitting infrared laser, and the wavelength of infrared laser can be 940 nanometers, infrared to swash
Light can have uniform spot pattern.
Optical element 112 can be set in the optical path of infrared laser, and the infrared laser that laser light source 111 emits passes through light
Enter external environment after learning element 112.It is appreciated that in one example, it is infrared when infrared laser passes through optical element 112
The optical phenomenas such as diffraction, scattering can occur for laser, so that the pattern of infrared laser, direction of propagation etc. change.Another
In a example, when infrared laser passes through optical element 112, it is red without changing that infrared laser can also extend only through optical element 112
The pattern of outer laser, the direction of propagation.Specifically, optical element 112 can be diffuser (diffuser), and diffuser is arranged red
In the optical path of outer laser, the infrared laser that laser light source 111 emits is spread through diffuser, with more uniformly to sending out in free surrounding space
It penetrates.
Transmitting shell 113 could be formed with accommodating chamber 114, and laser light source 111 and optical element 112, which can be set, to be received
In cavity 114.Transmitting shell 113 can be made of metal material to shield extraneous electromagnetic interference, and transmitting shell 113 can also be with
It is made of materials such as plastics, resins.Light-emitting window 115, light-emitting window 115 and 114 phase of accommodating chamber can be offered on transmitting shell 113
Logical, the infrared laser that laser light source 111 emits is by entering external environment, certainly, the light of external environment after light-emitting window 115
It may be entered in accommodating chamber 114 by light-emitting window 115.
Referring to Fig. 2, in the embodiment of the present application, the infrared laser that laser light source 111 emits is laser pulse (such as Fig. 4
And shown in T1 signal shown in fig. 5), i.e., the transmitting of laser light source 111 swashs when at Fig. 4 and T1 signal shown in fig. 5 in high level
Light pulse, in low level, laser light source 111 does not emit laser pulse, hurts use to avoid continuing outwardly to emit laser
Family, in addition, the laser intensity that laser light source 111 emits can not be more than scheduled secure threshold.
Optical receiver 12 includes lens 121 and sensor 122.Infrared laser reaches target after projecting in optical transmitting set 11
Object, under the reflex of target object, infrared laser is received back to optical receiver 12 and by optical receiver 12.Specifically
Ground, the infrared light reflected are received after passing through lens 121 by sensor 122.Emit infrared laser by calculating laser light source 111
The time difference for the infrared laser being reflected back toward is received with sensor 122, when target object can be calculated relative to flight
Between mould group 10 depth (that is, distance).
Please refer to Fig. 2 and Fig. 6, control system 20 can be connect with flight time mould group 10, specifically, control system 20 with
Flight time mould group 10 is electrically connected, and control system 20 can be used for controlling the transmitting of flight time mould group 10 and receive infrared laser.Control
System 20 processed includes galvanometer circuit 22 and application processor 24.
Galvanometer circuit 22 can be connect with laser light source 111, to detect the operating current of laser light source 111.In an example
In son, by being then forwarded to application processor after the processing such as the operating current that galvanometer circuit 22 also will test is amplified or denoised
24(Application Processor,AP).Galvanometer circuit 22 can be encapsulated as inspection stream chip, current detector or be integrated in
In remaining functional module of terminal 1000.Galvanometer circuit 22 can be set on the substrate 13 and be electrically connected with substrate 13.At other
In example, galvanometer circuit 22 also be can be set on the positions such as the mainboard of terminal 1000.
Application processor 24 can be connect with galvanometer circuit 22.The system that application processor 24 can be used as terminal 1000,
Galvanometer circuit 22 can work under the control of application processor 24, and application processor 24 can send enabled to galvanometer circuit 22
Signal (AP_EN signal), reset signal (AP_Rst signal) etc. control signal.Application processor 24 can receive galvanometer circuit 22
The operating current for detecting obtained laser light source 111, when application processor 24 can judge flight by the feature of operating current
Between mould group 10 whether work normally, when detecting that flight time mould group 10 does not work normally, application processor 24 issue close
Signal is controlled to close laser light source 111.
Specifically, incorporated by reference to Fig. 4, in one example, in preset first duration a, operating current characterizes laser light
When the duration that source 111 is in effective working condition is greater than preset duration threshold value, application processor 24 judges flight time mould group
10 do not work normally, and issue closing control signal to close laser light source 111.First duration and duration threshold value can be terminal
The 1000 any durations set according to user information or environmental factor, are also possible to the personalization that user carries out according to demand for security
Setting, for example, the first duration can be 10 milliseconds, duration threshold value be that 8 milliseconds or the first duration can be 100 nanoseconds, duration
Threshold value is 56 nanoseconds etc..Application processor 24 can detect the electric signal in the first duration a, when detecting first
Laser light source 111 is in effective working condition (shining) more than after duration threshold value in long a, it is believed that in the first duration a,
The luminous duration of laser light source 111 is too long, and infrared laser emits excessive energy to user, may damage to user,
Especially the eyes of user are damaged.
Incorporated by reference to Fig. 5, in another example, in preset second duration b, operating current characterizes laser light source 111
Luminous energy be greater than preset energy threshold when, application processor 24 judges that flight time mould group 10 does not work normally, concurrently
Closing control signal is out to close laser light source 111.Second duration and energy threshold can be terminal 1000 according to user information
Or any duration of environmental factor setting, it is also possible to the personalized setting that user carries out according to demand for security.Application processor
24 can detect the electric signal in the second duration b, when the luminous energy for detecting laser light source 111 in the second duration b
When more than energy threshold, it is believed that in the second duration b, infrared laser emits excessive energy to user, may to
Family damages, and especially damages to the eyes of user.
Referring to Fig. 7, the application also provides a kind of control method of flight time component 100, flight time component 100
Control method can be used for controlling the flight time component 100 of the application embodiment, control method comprising steps of
01: the operating current of detection laser light source 111；
02: judge in preset first duration, operating current characterization laser light source 111 be in effective working condition when
It is long whether to be greater than preset duration threshold value, or judge in preset second duration, operating current characterizes the hair of laser light source 111
Whether light energy is greater than preset energy threshold；And
03: if so, issuing closing control signal to close laser light source.
It is appreciated that in step 02, if it is determined that laser light source 111 is in effective working condition in the first duration
Duration be not more than duration threshold value, and in the second duration, the luminous energy of laser light source 111 is not more than energy threshold, then may be used
To continue implementation steps 01, and laser light source 111 can be kept in running order.
To sum up, in the terminal 1000 of the application embodiment and the control method of flight time component 100, swashed by detecting
The operating current of radiant 111, and in preset first duration, operating current characterization laser light source 111 is in effective work
When the duration of state is greater than preset duration threshold value, or in preset second duration, operating current characterizes laser light source 111
When luminous energy is greater than preset energy threshold, laser light source 111 is closed at this time, can avoid hurting user, flight time mould
The safety in utilization of group 10 is higher.Meanwhile the control system 20 of the application is passed through galvanometer circuit 22 and is answered by hardware plan
With processor 24, to detect flight time mould group 10, whether operation irregularity is kept away for being detected by software scenario
Exempt to cause to detect the case where failing due to software crash etc., reliability is higher.
Incorporated by reference to Fig. 4 and Fig. 5, in some embodiments, it is greater than preset first amplitude threshold in the amplitude of operating current
When value, operating current characterization laser light source 111 is in effective working condition.Specifically, in the amplitude of operating current less than first
When amplitude thresholds, illustrate that 23 operating current of galvanometer circuit may be due to inside 20 inside of control system or flight time mould group 10
Current disturbing and generate, laser light source 111 is not to be in effective working condition at this time.Therefore when can be to avoid to flight
Between mould group 10 state cause judge by accident and accidentally close laser light source 111, influence user's normal use terminal 1000.Wherein, effectively
Working condition can be understood as laser light source 111 and shine, and non-effective work shape then can be understood as laser light source 111 not very much
It shines.First amplitude threshold value can according to the factors such as the stability of electric current inside control system 20 or flight time mould group 10 into
Row adjustment.It is appreciated that showing that the intensity for the laser that laser light source 111 issues is bigger at this point, the amplitude of operating current is bigger.
Certainly, the feature that operating current characterization laser light source 111 is in effective working condition can also be other, be not limited to
Above-mentioned citing, for example, it is also possible to which operating current characterization swashs when being that the amplitude of operating current is less than preset second amplitude thresholds
Radiant 111 is in effective working condition, and specifically, the initialization electric current that galvanometer circuit 22 detects may be also by reversed
Final operating current is formed after the related operations such as operation, received application processor 24 is the final operating current, final to work
In electric current characterize laser light source 111 be in effective working condition feature be amplitude be less than preset second amplitude thresholds, second
Amplitude thresholds can according in control system 20 to the related operation rule settings of initialization electric current.
Referring to Fig. 4, in some embodiments, in the first duration, operating current characterization laser light source 111, which is in, to be had
When imitating the consecutive hours length of working condition greater than preset duration threshold value, it is sharp to close that application processor 24 issues closing control signal
Radiant 111.Specifically, as shown in figure 4, in the operating current T2 being in a first duration a, laser light source 111 is characterized
The continuous duration for being in effective working condition is respectively t1 and t2, then compares whether t1 is greater than duration threshold value, and whether compare t2
Greater than duration threshold value, when at least one in t1 and t2 is greater than duration threshold value, application processor 24 issues closing control signal.Place
In the operating current T3 in a duration a, characterization laser light source 111 is in a length of t3 of consecutive hours of effective working condition, then
Compare whether t3 is greater than duration threshold value, when t3 is greater than duration threshold value, application processor 24 issues closing control signal.
Referring again to Fig. 4, in some embodiments, in the first duration, operating current characterization laser light source 111 is in
When the total duration of effective working condition is greater than preset duration threshold value, it is sharp to close that application processor 24 issues closing control signal
Radiant 111.Specifically, as shown in figure 4, in the operating current T2 being in a first duration a, laser light source 111 is characterized
The total duration for being in effective working condition is t1+t2, then compares whether t1+t2 is greater than duration threshold value, when t1+t2 is greater than duration threshold
When value, application processor 24 issues closing control signal.It is in the operating current T3 in a duration a, characterizes laser light source
111 total durations for being in effective working condition are t3, then compare whether t3 is greater than duration threshold value, when t3 is greater than duration threshold value,
Application processor 24 issues closing control signal.
Referring to Fig. 5, in some embodiments, integral of the amplitude of operating current in the second duration is greater than preset
When integral threshold, the luminous energy that operating current characterizes laser light source 111 is greater than preset energy threshold.Specifically, work electricity
Integral of the amplitude of stream in the second duration can be indicated with area, as shown in figure 5, being in the work in a second duration b
Making integral of the amplitude of electric current T2 in the second duration b can be indicated with the area S1 of dash area, then whether big compares S1
In integral threshold, when S1 is greater than integral threshold, application processor 24 issues closing control signal.It is in a second duration b
Integral of the amplitude of interior operating current T3 in the second duration b can be indicated with the area S2 of dash area, then compare S2
Whether integral threshold is greater than, when S2 is greater than integral threshold, application processor 24 issues closing control signal.It is in one second
Integral of the amplitude of operating current T4 in duration b in the second duration b can be indicated with the area S3 of dash area, then compared
Whether it is greater than integral threshold compared with S3, when S3 is greater than integral threshold in the sending closing control signal of application processor 24.It can manage
Solution, cause integral be greater than integral threshold the case where may be since the amplitude in the second duration b is totally larger, or characterization swash
The luminous duration of radiant 111 is larger or amplitude and characterization laser light source 111 it is luminous duration it is larger.Particularly, when
Two duration b setting is enough to small, such as when being infinitely close to 0, at this point, integral of the amplitude of operating current in the second duration b
Value is the amplitude, then compares the size relation of the amplitude and integral threshold, when amplitude is greater than the integral threshold, operating current table
The luminous energy for levying laser light source 111 is greater than energy threshold.
In some embodiments, duration threshold value is according to the setting of the distance between flight time mould group 10 and target object.
It is appreciated that flight time mould group 10 is closer at a distance from target object (such as people), infrared laser is in flight time mould group 10
The loss propagated between target object is smaller, and the energy by the infrared laser of target object receiving is then stronger, and therefore, it is necessary to needles
Different duration threshold values is set, to different distances to guarantee that user is all had under different distance using flight time mould group 10
Higher safety.Specifically, can be distance it is closer, duration threshold value is arranged smaller, distance it is remoter, duration threshold value is arranged
It is bigger.Similarly, energy threshold can also be set according to the distance between flight time mould group 10 and target object, specifically, can
To be that distance is closer, energy threshold is arranged smaller, and distance is remoter, and energy threshold is arranged bigger.
Incorporated by reference to Fig. 1, the distance between flight time mould group 10 and target object can be detected by distance detector 400.
Specifically, distance detector 400 can be proximity sensor (Proximity Sensor, PS)；Distance detector 400 can be with
Including at least two imaging devices, and using the principle of binocular ranging obtain between flight time mould group 10 and target object away from
From；Distance detector 400 can also be single imaging device, according to target object institute in the single imaging device imaging
The ratio accounted for calculates the distance between flight time mould group 10 and target object.Certainly, the concrete form of distance detector 400 is also
It can be other, be not limited to above-mentioned citing, such as distance detector 400 can be flight time mould group 10, when passing through flight
Between mould group 10 detect the distance between flight time mould group 10 and target object.
In some embodiments, duration threshold value is according to the light intensity setting in current environment.It is appreciated that human eye energy
The light intensity enough born is generally identical, and human eye bear light be by environment light and flight time mould group 10 issue
Infrared laser composition.Therefore, the light intensity in current environment is bigger, then requires the intensity of infrared laser smaller, so that two
The summation of person's intensity does not exceed the range that human eye is able to bear；Light intensity in current environment is smaller, then infrared laser
Intensity can be relatively strong, it is only necessary to guarantee that the summation of the two intensity does not exceed the range that human eye is able to bear.Therefore it can be according to outer
Light intensity in boundary's environment sets duration threshold value.Specifically, the light intensity in current environment is bigger, and duration threshold value is arranged
Shorter, the light intensity in current environment is smaller, and duration threshold value is arranged longer.Similarly, energy threshold can also be according to current
Light intensity setting in environment, specifically, the light intensity that can be in current environment is bigger, and energy threshold is arranged more
Small, the light intensity in current environment is smaller, and energy threshold is arranged bigger.
Incorporated by reference to Fig. 1, the light intensity in current environment can be detected by light detector 500.Specifically, light detects
Device 500 can be optical flame detector, and optical flame detector is used to detect the light intensity in environment；Light detector 500 can also be imaging dress
It sets, after imaging device shoots the image of current scene, the brightness value of the pixel according to image calculates the environment where current scene
Light intensity.
Fig. 8 and Fig. 9 is please referred to, in some embodiments, control system 20 further includes driving circuit 23.Driving circuit 23
It is connect with application processor 24, driving circuit 23 connect with laser light source 111 and for driving laser light source 111 to emit laser.
When driving circuit 23 receives closing control signal, driving circuit 23 closes laser light source 111.
Driving circuit 23 can be packaged into chip, and driving circuit 23 can be obtained by chip energization pins from external power supply
Electric energy is communicated by communication interface (such as SDIO pin, SCLK pin) with external module, by laser light source energization pins with
The connection of laser light source power supply controls signal pins by laser light source and connect with laser light source 111.Driving circuit 23 can be set
On the substrate 13.Galvanometer circuit 22 can be connected between driving circuit 23 and laser light source 111；Or laser light source 111 is gone here and there
It is associated between galvanometer circuit 22 and driving circuit 23.Application processor 24 can be by the communication interface of driving circuit 23 to driving
Circuit 23 sends closing control signal, after driving circuit 23 responds closing control signal, closes laser light source 111, makes laser light
Source 111 stops launching outward laser.
Referring to Fig. 10, in some embodiments, sensor 122 connects application processor 24.Control system 20 is also wrapped
Driving circuit 23 is included, driving circuit 23 connect with laser light source 111 and for driving laser light source 111 to emit laser.Using place
Closing control signal is sent sensor 122 by reason device 24, and sensor 122 controls driving circuit 23 according to closing control signal and closes
Close laser light source 111.
Specifically, in the example shown in Fig. 10, sensor 122 includes control module 1221 and modulation module 25.Modulation
Preset modulation information is stored in module 25.Driving circuit 23 is connect to receive preset modulation information with modulation module 25, driving
Circuit 23 is connect with laser light source 111, and for driving laser light source 111 to emit laser according to modulation intelligence.Application processor
Closing control signal is sent control module 1221 by 24, and control module 1221 controls driving circuit 23 according to closing control signal
Close laser light source 111.
Modulation module 25 can send driving circuit 23 for the preset modulation information of storage, and preset modulation information can be right
Stress radiant 111 preset modulation mode, flight time mould group 10 work normally when, driving circuit 23 drive laser light source
111 emit laser according to modulation system, and wherein modulation system may include the period letter that laser light source 111 emits laser pulse
The information such as breath, power information, the corresponding modulation intelligence of modulation system may include it is multiple, under different usage scenarios, driving
Circuit 23 can drive laser light source 111 to emit laser according to different modulation systems.
When application processor 24 issues closing control signal, illustrate that laser light source 111 fails according to preset modulation methods
Formula emits laser, it may be possible to which 25 failure of modulation module or modulation intelligence select mistake.Application processor 24 will close control letter
Number it is sent to the control module 1221 of sensor 122；After control module 1221 receives closing control signal, controlled according to closing
Signal direct controlling and driving circuit 23 closes laser, and no longer controls driving circuit 23 and drive laser light source according to modulation system
111, preferentially ensure that light source is closed.
Modulation module 25 is integrated on sensor 122, and the integrated level of flight time mould group 10 can be made higher, volume compared with
It is small.
Figure 11 is please referred to, in some embodiments, control system 20 further includes power module 26, power module 26 and is swashed
Radiant 111 connects and for powering to laser light source 111.Power module 26 is also connect with application processor 24, power module
26 when receiving closing control signal, disconnects to the power supply of laser light source 111.
Specifically, when flight time mould group 10 works normally, application processor 24 can send low to power module 26
Level electrical signal, power module 26 are continuously the power supply of laser light source 111, and application processor 24 sends high level to power module 26
When electric signal (may be regarded as closing control signal), power module 26 responds the high level electric signal, stops supplying to laser light source 111
Electricity, until application processor 24 sends low level electric signal to power module 26 again, power module 26 gives laser light source again
111 power supplies.
Fig. 1 and Figure 12 is please referred to, in some embodiments, terminal 1000 further includes signal generator 300, and signal occurs
Device 300 is used to issue the abnormal prompt information of flight time mould group 10 when application processor 24 issues closing control signal.
Specifically, signal generator 300 can be connect with the application processor 24 of terminal 1000, and application processor 24 issues
When closing control signal, control signal generator 300 issues the abnormal prompt of flight time mould group 10 to application processor 24 simultaneously
Information.
User can know that flight time mould group 10 does not work normally by the prompt information that signal generator 300 issues,
And user may be hurt, user can take corresponding measure to avoid being injured in time, such as close terminal 1000, change terminal
1000 towards to avoid being irradiated with a laser.Specifically, signal generator 300 can be light beam generator, in one example,
As shown in figure 13, signal generator 300 can be display screen 301, and prompt information can be shown in the display on display screen 301
Information, such as display reminding text, pattern, animation etc.；Signal generator 300 can also be sound generator, and prompt information can
To be voice prompting, in one example, signal generator 300 can be loudspeaker etc., and prompt information can be loudspeaker hair
Voice prompting out；Signal generator 300 can also be actuator, and prompt information can be vibration information, in one example,
Actuator can be vibration motor etc., and prompt information can be vibration motor with the shell of scheduled frequency drives terminal 1000
200 vibrations.
Figure 13 is please referred to, in some embodiments, when signal generator 300 receives preset open command, application
Processor 24 issues opening control signal so that laser light source 111 reopens.
For shown in Figure 13, display screen 301 can show the prompt information of " click retries (10S) ", and user can point
The prompt information is hit, after display screen 301 receives the clicking operation of user, is considered as signal generator 300 and receives open command,
Application processor 24 issues opening control signal at this time, and laser light source 111 is reopened.Certainly, for different types of
Signal generator 300, different prompt informations, the type of open command may also can be different, this is not restricted.
In some embodiments, after application processor 24 issues closing control signal scheduled duration, application processor 24
Opening control signal is issued so that laser light source 111 reopens.
Specifically, scheduled duration can be any duration such as 10 seconds, 7 seconds, 3 seconds, and terminal 1000 can be in scheduled duration
Restart software relevant to laser light source 111 or carry out self-test, laser light source 111 is opened after scheduled duration, to meet use
The use demand at family.Certainly, when the duration that closing control signal issues is not more than scheduled duration, laser light source can be kept
111 are in close state.
Further, when the number that laser light source 111 is continuously closed is more than pre-determined number, laser light source 111 is persistently located
In closed state.After laser light source 111 is closed and reopens, application processor 24 may still detect flight time mould
Group 10 fails to work normally, and issues closing control signal again and laser light source 111 is again turned off.When laser light source 111
When the number continuously closed is more than pre-determined number, illustrate that flight time mould group 10 may have occurred hardware damage or be difficult to repair
Multiple software fault, the needs of flight time mould group 10 are more fully detected or are repaired ability normal use, therefore, in order to protect
Hinder user security, laser light source 111 is continuously in closed state, avoids laser light source 111 from being opened by mistake and open.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " means in conjunction with the embodiment
Or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the application.
In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, description
Particular features, structures, materials, or characteristics can be in any one or more embodiments or example with suitable side
Formula combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one described feature.In the description of the present application, the meaning of " plurality " is at least two, such as two,
Three, unless otherwise specifically defined.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, and scope of the present application is defined by the claims and their equivalents.
Claims (16)
1. a kind of flight time component, which is characterized in that including flight time mould group and control system, the flight time mould group
Including laser light source, the control system includes:
Galvanometer circuit, the galvanometer circuit connect with the laser light source and are used to detect the operating current of the laser light source；
And
Application processor, in preset first duration, the operating current characterizes the laser light source and is in effectively work shape
When the duration of state is greater than preset duration threshold value, or in preset second duration, the operating current characterizes the laser light
When the luminous energy in source is greater than preset energy threshold, the application processor issues closing control signal to close the laser
Light source.
2. flight time component according to claim 1, which is characterized in that in first duration, the work electricity
Flow table levy the laser light source be in effective working condition consecutive hours it is long when being greater than preset duration threshold value, the application processing
Device issues closing control signal to close the laser light source；Or
In first duration, the operating current characterize the laser light source be in effective working condition total duration it is big
When preset duration threshold value, the application processor issues closing control signal to close the laser light source.
3. flight time component according to claim 1, which is characterized in that be greater than in the amplitude of the operating current default
First amplitude threshold value when, the operating current characterizes the laser light source and is in effective working condition.
4. flight time component according to claim 1, which is characterized in that the amplitude of the operating current is described second
When integral in duration is greater than preset integral threshold, the luminous energy that the operating current characterizes the laser light source is greater than pre-
If energy threshold.
5. flight time component according to claim 1, which is characterized in that the duration threshold value is according to the flight time
The setting of the distance between mould group and target object；And/or
The duration threshold value is set according to the light intensity of current environment.
6. flight time component according to claim 1, which is characterized in that the energy threshold is according to the flight time
The setting of the distance between mould group and target object；And/or
The energy threshold is set according to the light intensity of current environment.
7. according to claim 1 to flight time component described in 6 any one, which is characterized in that the control system is also wrapped
Driving circuit is included, the driving circuit is connect with the laser light source, and for driving the laser light source transmitting laser；
The driving circuit is connect with the application processor, when the driving circuit receives the closing control signal, institute
It states driving circuit and closes the laser light source.
8. according to claim 1 to flight time component described in 6 any one, which is characterized in that the flight time component
It further include sensor, the sensor is used to receive the laser reflected by target object, and the application processor connects the biography
Sensor；
The control system further includes driving circuit, and the driving circuit is connect with the laser light source, and described for driving
Laser light source emits laser；
The application processor is used to send the sensor for the closing control signal, and the sensor is according to the pass
It closes control signal and controls the driving circuit closing laser light source.
9. according to claim 1 to flight time component described in 6 any one, which is characterized in that the control system is also wrapped
Driving circuit is included, the driving circuit is connect with the laser light source, and for driving the laser light source transmitting laser；
The galvanometer circuit is connected between the driving circuit and the laser light source；Or
The laser light source is connected between the galvanometer circuit and the driving circuit.
10. according to claim 1 to flight time component described in 6 any one, which is characterized in that the control system is also wrapped
Power module is included, the power module connect with the laser light source and is used to power to the laser light source, the power supply mould
Block is also connect with the application processor, when the power module receives the closing control signal, is disconnected to the laser
The power supply of light source.
11. according to claim 1 to flight time component described in 6 any one, which is characterized in that the application processor hair
Out after the closing control signal scheduled duration, the application processor issues opening control signal so that the laser light source weight
It is new to open.
12. flight time component according to claim 11, which is characterized in that in time that the laser light source is continuously closed
When number is more than pre-determined number, the laser light source is continuously in closed state.
13. a kind of terminal characterized by comprising
Shell；And
Flight time component described in claim 1 to 12 any one, the flight time component are mounted in the shell.
14. terminal according to claim 13, which is characterized in that the terminal further includes signal generator, the signal
Generator is used to issue the prompt letter of the flight time mould group exception when the application processor issues closing control signal
Breath.
15. terminal according to claim 14, which is characterized in that the signal generator receives preset open command
When, the application processor issues opening control signal so that the laser light source reopens.
16. a kind of control method of flight time component, which is characterized in that the flight time component includes laser light source, institute
Stating control method includes:
Detect the operating current of the laser light source；
Judge in preset first duration, the operating current characterizes the duration that the laser light source is in effective working condition
Whether it is greater than preset duration threshold value, or judges in preset second duration, the operating current characterizes the laser light source
Luminous energy whether be greater than preset energy threshold；And
If so, issuing closing control signal to close the laser light source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229450.0A CN109917808A (en) | 2019-03-25 | 2019-03-25 | The control method of flight time component, terminal and flight time component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229450.0A CN109917808A (en) | 2019-03-25 | 2019-03-25 | The control method of flight time component, terminal and flight time component |
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| CN114170729A (en) * | 2021-10-30 | 2022-03-11 | 江苏东成工具科技有限公司 | Electric tool combination |
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