CN106506830A - A kind of distance measurement method, mobile terminal and system - Google Patents
A kind of distance measurement method, mobile terminal and system Download PDFInfo
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- CN106506830A CN106506830A CN201610959816.6A CN201610959816A CN106506830A CN 106506830 A CN106506830 A CN 106506830A CN 201610959816 A CN201610959816 A CN 201610959816A CN 106506830 A CN106506830 A CN 106506830A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Human Computer Interaction (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of distance measurement method, mobile terminal and system, methods described includes：Set up with measurement apparatus by first interface and be connected, controlled the measurement apparatus and enter distance measurement mode, so that the measurement apparatus send measurement light and the measurement light produces measurement luminous point in target area；The measurement luminous point position is set to impact point in the picture by the picture for including the measurement luminous point by image acquisition units collection；The connection that is set up with the measurement apparatus by the first interface, gets the range measurements of the impact point for the target area of the measurement apparatus feedback.Ensure that and distance test is carried out by optical signal, the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to provide more intuitively effect.
Description
Technical field
The present invention relates to the multiple terminals management technique in the communications field, more particularly to a kind of distance measurement method, movement are eventually
End and system.
Background technology
Mobile terminal can pass through to be equipped with ultrasonic speaker and ultrasonic microphone on fuselage at this stage, by launching ultrasound
Ripple and the time of return of sound wave is calculated being found range.But its shortcoming has a lot, sends and receives mould firstly for ultrasound wave
Group, designs in mobile terminal, and the volume taken in mobile terminal is excessive, and change measurement direction needs mobile handheld terminal
Position.Be inconvenient to test, also the inconvenient observed result from screen in real time.Secondly, too small ultrasonic emitting and reception mould
The available measurement range of group is limited, and precision is relatively low.
Content of the invention
Present invention is primarily targeted at proposing a kind of distance measurement method, mobile terminal and system, it is intended to solve existing
The problems referred to above present in technology.
For achieving the above object, a kind of distance measurement method that the present invention is provided, is applied to mobile terminal, including：
Set up with measurement apparatus by first interface and be connected, controlled the measurement apparatus and enter distance measurement mode, so that institute
State measurement apparatus send measurement light and described measurement light target area produce measurement luminous point；
The picture for including the measurement luminous point by image acquisition units collection, by the measurement light in the picture
Point position is set to impact point；
The connection that is set up with the measurement apparatus by the first interface, gets being directed to for the measurement apparatus feedback
The range measurements of the impact point of the target area.
In such scheme, the distance of the impact point for the target area for getting the measurement apparatus feedback
After measurement result, methods described also includes：
Based on the range measurements, the focal length of described image collecting unit is adjusted, so that described image
The focal length coupling collection distance of collecting unit is with the target area apart from identical area image.
In such scheme, the connection that is set up with the measurement apparatus by the first interface gets the survey
The range measurements of the impact point for the target area of amount device feedback, including：
The square wave corresponding with range measurements is got by the first interface, the square wave is solved
Analysis obtains the distance with the impact point of the target area.
In such scheme, methods described also includes：
Detect the adjustment angle of the measurement apparatus；
Based on the adjustment angle, the impact point in the picture is adjusted so that the impact point after adjustment with
The measurement luminous point produced in target area after measurement apparatus adjustment angle overlaps；
The connection that is set up with the measurement apparatus by the first interface, gets the measurement apparatus after the adjustment
Range measurements for the impact point of the target area.
The embodiment of the present invention provides a kind of mobile terminal, including：
Control unit, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered range finding
Pattern, so that the measurement apparatus send measurement light and the measurement light produces measurement luminous point in target area；
Image acquisition units, for the picture that collection includes the measurement luminous point, by the measurement in the picture
Luminous point position is set to impact point；
Distance acquiring unit, for the connection that is set up with the measurement apparatus by the first interface, is got described
The range measurements of the impact point for the target area of measurement apparatus feedback.
In such scheme, described image collecting unit is for being based on the range measurements, single to described image collection
The focal length of unit is adjusted, so that the focal length coupling of described image collecting unit gathers the distance of distance and the target area
Identical area image.
In such scheme, the distance acquiring unit, for getting described and range measurement by the first interface
As a result corresponding square wave, carries out parsing the distance obtained with the impact point of the target area to the square wave.
In such scheme, the mobile terminal also includes：
Detector unit, for detecting the adjustment angle of the measurement apparatus；
Described image collecting unit, for based on the adjustment angle, being adjusted to the impact point in the picture, with
So that the impact point after adjustment is overlapped with the measurement luminous point produced in target area after measurement apparatus adjustment angle；
The distance acquiring unit, for the connection that is set up with the measurement apparatus by the first interface, is got
Measurement apparatus range measurements after the adjustment for the impact point of the target area.
A kind of Range Measurement System is embodiments provided, including：
Mobile terminal, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered range finding
Pattern；Collection includes the picture of the measurement luminous point, and the measurement luminous point position is set to mesh in the picture
Punctuate；The connection that is set up with the measurement apparatus by the first interface, get measurement apparatus feedback for institute
State the range measurements of the impact point of target area；
Measurement apparatus, for based on the control of mobile terminal send measurement light and described measurement light in target area
Domain produces measurement luminous point.
In such scheme, the measurement apparatus include：
Laser ranging module, for sending measurement light；
Control unit, the return projector of the measurement light for being received based on laser ranging module are determined and target area
Distance, based on the distance modulated into square wave, by the first interface of mobile terminal send the square wave to described mobile eventually
End.
A kind of distance measurement method proposed by the present invention, mobile terminal and system, by the external measurement apparatus of first interface,
And with reference to the image information that itself can collect, determine the distance between some position and mobile terminal in picture.Thus,
Being to ensure that and distance test is carried out by optical signal, the accuracy of the measurement result for obtaining is higher, and can be with collection
Image information is combined, so as to provide more intuitively effect.
Description of the drawings
Fig. 1 is the hardware architecture diagram of the mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is embodiment of the present invention distance measurement method schematic flow sheet；
Fig. 4 is embodiment of the present invention schematic diagram of a scenario one；
Fig. 5 is embodiment of the present invention square wave pattern schematic diagram；
Fig. 6 is embodiment of the present invention schematic diagram of a scenario two；
Fig. 7 is embodiment of the present invention schematic diagram of a scenario three；
Fig. 8 is that embodiment of the present invention mobile terminal constitutes structural representation one；
Fig. 9 is that embodiment of the present invention mobile terminal constitutes structural representation two；
Figure 10 is that embodiment of the present invention system constitutes structural representation；
Figure 11 is that embodiment of the present invention measurement apparatus constitute structural representation；
Figure 12 is a particular hardware structural representation of embodiment of the present invention measurement apparatus and mobile terminal；
Figure 13 is embodiment of the present invention system handling process schematic diagram.
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only in order to explain the present invention.
Referring now to the mobile terminal that Description of Drawings realizes each embodiment of the invention.In follow-up description, use
For representing the suffix of such as " module ", " part " or " unit " of element only for being conducive to the explanation of the present invention, itself
Not specific meaning.Therefore, " module " mixedly can be used with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (panel computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desk computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for moving
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 8, user input list
Unit 100, output unit 150, memorizer 160, interface unit 170, controller 180 and power subsystem 190 etc..Fig. 1 shows
There is the mobile terminal of various assemblies, it should be understood that being not required for implementing all components for illustrating.Can be alternatively real
Apply more or less of component.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and which allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.
A/V input blocks 8 are used for receiving audio or video signal.A/V input blocks 8 can include camera 121, camera
121 pairs of static images obtained by image capture apparatus in Video Capture pattern or image capture mode or the picture number of video
According to being processed.Picture frame after process is may be displayed on display unit 151.Can be with through the picture frame after the process of camera 121
It is stored in memorizer 160 (or other storage mediums) or is transmitted via wireless communication unit 110.
User input unit 100 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 100 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon on display unit 151 as a layer, touch screen can be formed.
Interface unit 170 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 1 00.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for being used for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected with mobile terminal 1 00 via port or other attachment means.Interface unit 170 can be used for receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements can be used for transmission data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing to pass through which by electricity
Power provides the path of mobile terminal 1 00 from base or can serve as allowing the various command signals from base input to pass through which
It is transferred to the path of mobile terminal.The various command signals or electric power being input into from base may serve as recognizing that mobile terminal is
The no signal being accurately fitted within base.Output unit 150 is configured to defeated with the offer of vision, audio frequency and/or tactile manner
Go out signal (for example, audio signal, video signal, alarm signal, vibration signal etc.).Output unit 150 can include showing
Unit 151, dio Output Modules 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when the display unit 151 and touch pad touch screen with formation superposed on one another as a layer, display unit
151 can serve as input equipment and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
A kind of.Some in these display may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
The embodiment that wants, mobile terminal 1 00 can include two or more display units (or other display devices), for example, move
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal in call signal reception pattern, call mode, logging mode,
When under the isotypes such as speech recognition mode, broadcast reception mode, that wireless communication unit 110 is received or in memorizer 160
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is executed.
Dio Output Modules 152 can include speaker, buzzer etc..
Alarm unit 153 can provide output to notify event to mobile terminal 1 00.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can provide output in a different manner with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incomingcommunication) are received, alarm list
Unit 153 can provide tactile output (that is, vibrating) to notify to user.Tactile output as by providing, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or dio Output Modules 152.
Memorizer 160 can store software program for the process and control operation executed by controller 180 etc., Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And, memorizer 160 can be storing the vibration of various modes with regard to exporting and audio signal when touching and being applied to touch screen
Data.
Memorizer 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memorizer (for example, SD or DX memorizeies etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can execute memorizer with by network connection
The network storage device cooperation of 160 store function.
The overall operation of 180 usual control mobile terminal of controller.For example, controller 180 is executed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can include (or playback) many matchmakers for reproducing
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or it is so structured that and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for executing on the touchscreen or figure
Piece is drawn input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various embodiments described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to execute function described herein
At least one in electronic unit implementing, in some cases, can be implemented in controller 180 by such embodiment.
For software is implemented, the embodiment of such as process or function can with allow to execute the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) that is write with any appropriate programming language
Implement, software code can be stored in memorizer 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data all if any
Line and wireless communication system and satellite-based communication system are operating.
Referring now to the communication system that Fig. 2 descriptions are wherein operable to according to the mobile terminal of the present invention.
Such communication system can use different air interfaces and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
If back haul link can be constructed according to any one in the interface that Ganji knows, the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system can include multiple BSC2750 as shown in Figure 2.?
In Fig. 2, depict multiple satellites 300, it is understood that be, it is possible to use any number of satellite obtains useful positioning letter
Breath.
Based on above-mentioned mobile terminal hardware configuration and communication system, the inventive method each embodiment is proposed.
Embodiment one,
A kind of distance measurement method is embodiments provided, mobile terminal is applied to, as shown in figure 3, methods described
Including：
Step 301：Set up with measurement apparatus by first interface and be connected, controlled the measurement apparatus and enter distance measurement mode,
So that the measurement apparatus send measurement light and the measurement light produces measurement luminous point in target area；
Step 302：The picture for including the measurement luminous point by image acquisition units collection, by institute in the picture
State measurement luminous point position and be set to impact point；
Step 303：The connection that is set up with the measurement apparatus by the first interface, gets the measurement apparatus anti-
The range measurements of the impact point for the target area of feedback.
Here, the measurement apparatus can be made up of miniature laser range finding module.Running voltage 3.3v, during work, electric current is only
8mA, its precision up to 0.03m～50M, by TTL Serial Port Transmission data.
In addition, it can also be digital signal interface that the first interface can be analog signal interface, in the present embodiment not
It is defined, it is to be understood that when first interface is analog signal interface, the range measurements needs for receiving
For analogue signal；When first interface is data signal interfaces, the range measurements for receiving can be directly numeral
Signal.
Further, light can be thrown by the mode that above-mentioned measurement apparatus are measured, measurement apparatus by sending laser
It is incident upon at target area, wherein, the target area is specifically as follows a plane, or of arbitrary shape is blocked
Thing, is a face wall shown in figure, can also actually be a people；Light can produce a luminous point in target area, and mesh
Mark region can to light produce reflection, after measurement apparatus receive the light for reflecting, can be based on send light with
And receiving the time difference of light, and the aerial transmission speed of laser (or can be with to be finally calculated measurement apparatus
The distance between it is considered mobile terminal) and target area.
Set up above by first interface and the measurement apparatus after being connected, the control and measure device enters range finding mould
Formula, can have following two processing modes：
Processing mode one,
When first interface is analog signal interface, control signal not side is directly sent to the measurement apparatus
Just, at this point it is possible to by user by the physical button being arranged in measurement apparatus, control whether to open measurement apparatus and enter
Distance measurement mode；Such as, referring to Fig. 4, a physical button can be set in measurement apparatus, when the button is pressed, it may be determined that
Open and enter distance measurement mode.
Processing mode two,
When first interface is digital signal interface, can be from mobile terminal directly by first interface to measurement dress
Transmission control signal is put, so that measurement apparatus enter distance measurement mode.
Wherein, mobile terminal can pass through to install range finding application, to be controlled to measurement apparatus, run and enter application
Afterwards, unlatching measurement apparatus, distance measurement mode unlatching etc. virtual key can be included in the interface.
Above by the picture that image acquisition units collection includes the measurement luminous point, by the survey in the picture
Amount luminous point position is set to impact point, Ke Yiwei：The measurement luminous point is included by image acquisition units Real-time Collection
Picture, and arrange aiming point in picture measure luminous point position at, using the position as the target in picture
Point.
Such as, referring to Fig. 4, mobile terminal is smart mobile phone, and by the external measurement apparatus of earphone interface, smart mobile phone is opened
Photographic head is opened, image acquisition is carried out, explanation is needed exist for, is the picture exhibition that in real time photographic head can be collected here
In the process scene of viewing area, it is not related to whether determine the behaviour for obtaining the picture in current display area as picture
Make；Further, a luminous point can be seen in the picture of the target area for collecting, that is, the survey that measurement light is produced
Amount luminous point, at the position that aiming point is arranged on measurement luminous point that can be manual.
It is understood that above-mentioned manual arranging aiming point at the position of luminous point can be a kind of embodiment,
Can be whether there is high brightness point in automatic detection picture in actual treatment, automatically adjustment aiming point is to the position.Specifically
For, above-mentioned processing mode can be whether possess display content of the brightness higher than predetermined threshold value in detection current picture, if
Have, then whether the area of the display content is detected less than area threshold value, if being less than, aiming point is arranged just corresponding aobvious
Show at position.Wherein, area threshold value can be configured according to practical situation, less due to swashing scattering of light, so area
It is smaller that threshold value can be arranged.
The connection that is set up with the measurement apparatus by the first interface, gets being directed to for the measurement apparatus feedback
The range measurements of the impact point of the target area, as it was previously stated, measurement apparatus can pass through to detect reflected light and transmitting
The time difference between light determines distance, and now, measurement apparatus or the distance that obtains can be a specific numerical value, by the
The numerical value is sent to mobile terminal by one interface, thus, mobile terminal can just learn the distance between oneself and target area.
It can be seen that, by adopting such scheme, by the external measurement apparatus of first interface, and can collect with reference to itself
Image information, determines the distance between some position and mobile terminal in picture.Entered thus, being to ensure that by optical signal
Row distance is tested, and the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to carry
For more intuitively effect.
Embodiment two,
A kind of distance measurement method is embodiments provided, mobile terminal is applied to, as shown in figure 3, methods described
Including：
Step 301：Set up with measurement apparatus by first interface and be connected, controlled the measurement apparatus and enter distance measurement mode,
So that the measurement apparatus send measurement light and the measurement light produces measurement luminous point in target area；
Step 302：The picture for including the measurement luminous point by image acquisition units collection, by institute in the picture
State measurement luminous point position and be set to impact point；
Step 303：The connection that is set up with the measurement apparatus by the first interface, gets the measurement apparatus anti-
The range measurements of the impact point for the target area of feedback.
Here, the measurement apparatus can be made up of miniature laser range finding module.Running voltage 3.3v, during work, electric current is only
8mA, its precision up to 0.03m～50M, by TTL Serial Port Transmission data.
In addition, it can also be digital signal interface that the first interface can be analog signal interface, in the present embodiment not
It is defined, it is to be understood that when first interface is analog signal interface, the range measurements needs for receiving
For analogue signal；When first interface is data signal interfaces, the range measurements for receiving can be directly numeral
Signal.
Further, light can be thrown by the mode that above-mentioned measurement apparatus are measured, measurement apparatus by sending laser
It is incident upon at target area, wherein, the target area is specifically as follows a plane, or of arbitrary shape is blocked
Thing, is a face wall shown in figure, can also actually be a people；Light can produce a luminous point in target area, and mesh
Mark region can to light produce reflection, after measurement apparatus receive the light for reflecting, can be based on send light with
And receiving the time difference of light, and the aerial transmission speed of laser (or can be with to be finally calculated measurement apparatus
The distance between it is considered mobile terminal) and target area.
The connection that is set up with the measurement apparatus by the first interface, gets being directed to for the measurement apparatus feedback
The range measurements of the impact point of the target area, as it was previously stated, measurement apparatus can pass through to detect reflected light and transmitting
The time difference between light determines distance, and now, measurement apparatus or the distance that obtains can be a specific numerical value, by the
The numerical value is sent to mobile terminal by one interface, thus, mobile terminal can just learn the distance between oneself and target area.
It is with one difference of embodiment, scene of the present embodiment for first interface for analog signal interface is said
Bright.
The connection that is set up with the measurement apparatus by the first interface, gets the measurement apparatus feedback
For the range measurements of the impact point of the target area, including：Based on the range measurements, generate with described away from
From the corresponding square wave of measurement result；The square wave corresponding with range measurements is got by the first interface,
The square wave is carried out parsing the distance obtained with the impact point of the target area.
Specifically, as shown in figure 5, representing 0m and 50m respectively from the first row and the third line, we can be in this scope
Obtaining dutycycle t corresponding to respective distance, and meeting the functional relation of a t=kx+b, calculating will be brought into apart from x can be with
Obtain corresponding dutycycle.Then corresponding square-wave pulse can be produced by the intervalometer of MCU control unit, mobile terminal leads to
Cross Mic passages are counted to pulse duty factor t so as to dutycycle is retrieved apart from x by functional relation.Wherein,
K and b can be configured according to practical situation.
Specifically, it is believed that first interface is earphone interface, such as, referring to Fig. 6, in prior art, at the bottom of mobile phone
Portion is provided with the interface of multiple external equipments, illustrates earphone interface in figure；The earphone interface is connect as first in the present embodiment
Mouthful.
The scene that measurement apparatus are connected with mobile terminal can be with as shown in fig. 7, measurement apparatus be connected to by earphone interface
Mobile phone, after entering distance measurement mode, sends laser, and target area can be the region that the target person in figure is located；In addition, swashing
Light can produce measurement luminous point with personage, accordingly, show the picture for currently collecting, in picture in mobile phone viewing area
It can be seen that a luminous point, arranges aiming point a in light spot position.
It can be seen that, by adopting such scheme, by the external measurement apparatus of first interface, and can collect with reference to itself
Image information, determines the distance between some position and mobile terminal in picture.Entered thus, being to ensure that by optical signal
Row distance is tested, and the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to carry
For more intuitively effect.
Embodiment three,
On the basis of the scene provided in embodiment one or embodiment two, the present embodiment is directed to and is tied using range measurement
Really, show measurement result and the scene such as measured and be further illustrated to adjust based on the adjustment of measurement apparatus.
The range measurements of the impact point for the target area for getting measurement apparatus feedback it
Afterwards, methods described also includes：In the picture for including measurement luminous point, show the range measurements.
Wherein, show that the range measurements can be to show the range measurement in the predetermined position of mobile terminal
As a result.The predeterminated position can be configured according to practical situation, such as, it is possible to specify be shown below picture,
As shown in figure 4, measurement result " the actual range directly can be shown below picture：XX rice ".
Further, due to measurement apparatus, to measure available distance based on laser very accurate, can arrive little
Multiple after several points, when the range measurements are shown, the digit for showing the range measurements can also be set,
Such as, the N positions after being set to be shown to arithmetic point, N are less than or equal to 3.Above-mentioned N is only an example, can be with spirit in actual treatment
Work is configured, and the present embodiment does not carry out exhaustion.
Outside above-mentioned process, the present embodiment can also include：The range measurements are based on, described image is gathered
The focal length of unit is adjusted so that the focal length of described image collecting unit be suitable for gathering distance and the target area away from
From identical area image.
Wherein, the concrete processing mode for carrying out Focussing based on measurement result can be due to learning target area and shifting
The detailed distance of dynamic terminal, so directly carrying out the calculating of focal length according to the range measurements, can be reduced clear according to image
Clear degree is adjusted the wasted time, lifts the speed of image acquisition.
As the scene that may adjust measurement apparatus can be related in actual treatment, survey for adjustment in the present embodiment
The scene of the angle of amount device is illustrated, including：
Detect the adjustment angle of the measurement apparatus；
Based on the adjustment angle, the impact point in the picture is adjusted so that the impact point after adjustment with
The measurement luminous point produced in target area after measurement apparatus adjustment angle overlaps；
The connection that is set up with the measurement apparatus by the first interface, gets the measurement apparatus after the adjustment
Range measurements for the impact point of the target area.
Wherein, described based on adjustment angle to the processing mode that the impact point in the picture is adjusted can be：Logical
Cross adjustment angle and adjustment direction that sensor detects measurement apparatus, based on a determination that adjustment angle and adjustment direction,
By the impact point adjustment respective distance in the picture, so that impact point is located at the position of measurement luminous point.
The sensor can be the gyroscope being arranged in measurement apparatus, based on gyroscope and its corresponding coordinate system,
Can determine the direction of measurement apparatus movement and the distance of movement；
And/or,
The sensor can also be the gyroscope being arranged in mobile terminal, be able to detect that movement by the gyroscope
The moving direction of terminal and displacement, as mobile terminal and measurement apparatus keep being connected, so mobile terminal produces shifting
When dynamic, measurement apparatus can equally produce movement, so the moving direction and displacement based on mobile terminal itself is just
Can determine the displacement by impact point in picture and moving direction.
It can be seen that, by adopting such scheme, by the external measurement apparatus of first interface, and can collect with reference to itself
Image information, determines the distance between some position and mobile terminal in picture.Entered thus, being to ensure that by optical signal
Row distance is tested, and the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to carry
For more intuitively effect.
Further, since the focal length of image acquisition units can be adjusted in conjunction with range measurements, it is possible to real
Focusing process is now rapidly completed, and lifting mobile terminal carries out accuracy and the efficiency of image acquisition；
Additionally it is possible to the movement for detecting measurement apparatus further adjusts the position of the impact point in mobile terminal, also real
Show once after establishing a connection with measurement apparatus, no matter how measurement apparatus move adjustment mesh that can be fast automatic
The position of punctuate, so that quickly determine the distance between impact point and mobile terminal after adjustment.
Example IV,
The embodiment of the present invention provides a kind of mobile terminal, as shown in figure 8, the mobile terminal includes：
Control unit 81, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered survey
Away from pattern, so that the measurement apparatus send measurement light and the measurement light produces measurement luminous point in target area；
Image acquisition units 82, for the picture that collection includes the measurement luminous point, by the survey in the picture
Amount luminous point position is set to impact point；
Distance acquiring unit 83, for the connection that sets up with the measurement apparatus by the first interface, gets institute
State the range measurements of the impact point for the target area of measurement apparatus feedback.
It can also be digital signal interface that the first interface can be analog signal interface, when first interface is simulation letter
When number interface, the range measurements for receiving are needed for analogue signal；When first interface is data signal interfaces
Wait, the range measurements for receiving can be directly digital signal.
Set up above by first interface and the measurement apparatus after being connected, the control and measure device enters range finding mould
Formula, can have following two processing modes：
Processing mode one,
When first interface is analog signal interface, the distance acquiring unit, for passing through the first interface
The square wave corresponding with range measurements is got, the square wave is carried out parsing the mesh obtained with the target area
The distance of punctuate.
Control signal inconvenience are directly sent to the measurement apparatus, at this point it is possible to by user by being arranged on measurement
Physical button on device, controls whether to open measurement apparatus and enter distance measurement mode.
Specifically, as shown in figure 5, representing 0m and 50m respectively from the first row and the third line, we can be in this scope
Obtaining dutycycle t corresponding to respective distance, and meeting the functional relation of a t=kx+b, calculating will be brought into apart from x can be with
Obtain corresponding dutycycle.Then corresponding square-wave pulse can be produced by the intervalometer of MCU control unit, mobile terminal leads to
Cross Mic passages are counted to pulse duty factor t so as to dutycycle is retrieved apart from x by functional relation.Wherein,
K and b can be configured according to practical situation.
Specifically, it is believed that first interface is earphone interface, such as, referring to Fig. 6, in prior art, at the bottom of mobile phone
Portion is provided with the interface of multiple external equipments, illustrates earphone interface in figure；The earphone interface is connect as first in the present embodiment
Mouthful.
The scene that measurement apparatus are connected with mobile terminal can be with as shown in fig. 7, measurement apparatus be connected to by earphone interface
Mobile phone, after entering distance measurement mode, sends laser, and target area can be the region that the target person in figure is located；In addition, swashing
Light can produce measurement luminous point with personage, accordingly, show the picture for currently collecting, in picture in mobile phone viewing area
It can be seen that a luminous point, arranges aiming point a in light spot position.
Processing mode two,
When first interface is digital signal interface, can be from mobile terminal directly by first interface to measurement dress
Transmission control signal is put, so that measurement apparatus enter distance measurement mode.
Wherein, mobile terminal can pass through to install range finding application, to be controlled to measurement apparatus, run and enter application
Afterwards, it is provided that the interface shown in Fig. 6, unlatching measurement apparatus, distance measurement mode unlatching etc. can be included in the interface
Virtual key.
Above by the picture that image acquisition units collection includes the measurement luminous point, by the survey in the picture
Amount luminous point position is set to impact point, Ke Yiwei：The measurement luminous point is included by image acquisition units Real-time Collection
Picture, and arrange aiming point in picture measure luminous point position at, using the position as the target in picture
Point.
Such as, mobile terminal is smart mobile phone, and by the external measurement apparatus of earphone interface, smart mobile phone opens shooting
Head, carries out image acquisition, needs exist for explanation, is that the picture exhibition that can be collected photographic head in real time is showing here
The process scene in region, is not related to whether determine the operation for obtaining the picture in current display area as picture；Enter one
Step ground, can see a luminous point, that is, the measurement luminous point that measurement light is produced in the picture of the target area for collecting,
At the position that aiming point is arranged on measurement luminous point that can be manual.
It is understood that above-mentioned manual arranging aiming point at the position of luminous point can be a kind of embodiment,
Can be whether there is high brightness point in automatic detection picture in actual treatment, automatically adjustment aiming point is to the position.Specifically
For, above-mentioned processing mode can be whether possess display content of the brightness higher than predetermined threshold value in detection current picture, if
Have, then whether the area of the display content is detected less than area threshold value, if being less than, aiming point is arranged just corresponding aobvious
Show at position.Wherein, area threshold value can be configured according to practical situation, less due to swashing scattering of light, so area
It is smaller that threshold value can be arranged.
The connection that is set up with the measurement apparatus by the first interface, gets being directed to for the measurement apparatus feedback
The range measurements of the impact point of the target area, as it was previously stated, measurement apparatus can pass through to detect reflected light and transmitting
The time difference between light determines distance, and now, measurement apparatus or the distance that obtains can be a specific numerical value, by the
The numerical value is sent to mobile terminal by one interface, thus, mobile terminal can just learn the distance between oneself and target area.
It can be seen that, by adopting such scheme, by the external measurement apparatus of first interface, and can collect with reference to itself
Image information, determines the distance between some position and mobile terminal in picture.Entered thus, being to ensure that by optical signal
Row distance is tested, and the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to carry
For more intuitively effect.
Embodiment five,
Based on the mobile terminal that example IV is provided, the present embodiment control unit is additionally operable to include measurement light described
In the picture of point, show the range measurements.
Wherein, show that the range measurements can be to show the range measurement in the predetermined position of mobile terminal
As a result.The predeterminated position can be configured according to practical situation, such as, it is possible to specify be shown below picture.
Further, due to measurement apparatus, to measure available distance based on laser very accurate, can arrive little
Multiple after several points, when the range measurements are shown, the digit for showing the range measurements can also be set,
Such as, the N positions after being set to be shown to arithmetic point, N are less than or equal to 3.Above-mentioned N is only an example, can be with spirit in actual treatment
Work is configured, and the present embodiment does not carry out exhaustion.
Outside above-mentioned process, described image collecting unit, for based on the range measurements, adopting to described image
The focal length of collection unit is adjusted, so that the focal length of described image collecting unit is suitable for gathering distance and the target area
Apart from identical area image.
Wherein, the concrete processing mode for carrying out Focussing based on measurement result can be due to learning target area and shifting
The detailed distance of dynamic terminal, so directly carrying out the calculating of focal length according to the range measurements, can be reduced clear according to image
Clear degree is adjusted the wasted time, lifts the speed of image acquisition.
Referring to Fig. 9, the mobile terminal also includes：
Detector unit 84, for detecting the adjustment angle of the measurement apparatus；
Described image collecting unit 82, for based on the adjustment angle, being adjusted to the impact point in the picture,
So that the impact point after adjustment is overlapped with the measurement luminous point produced in target area after measurement apparatus adjustment angle；
The distance acquiring unit 83, for the connection that is set up with the measurement apparatus by the first interface, is obtained
To measurement apparatus range measurements after the adjustment for the impact point of the target area.
Wherein, described based on adjustment angle to the processing mode that the impact point in the picture is adjusted can be：Logical
Cross adjustment angle and adjustment direction that sensor detects measurement apparatus, based on a determination that adjustment angle and adjustment direction,
By the impact point adjustment respective distance in the picture, so that impact point is located at the position of measurement luminous point.
The sensor can be the gyroscope being arranged in measurement apparatus, based on gyroscope and its corresponding coordinate system,
Can determine the direction of measurement apparatus movement and the distance of movement；
And/or,
The sensor can also be the gyroscope being arranged in mobile terminal, be able to detect that movement by the gyroscope
The moving direction of terminal and displacement, as mobile terminal and measurement apparatus keep being connected, so mobile terminal produces shifting
When dynamic, measurement apparatus can equally produce movement, so the moving direction and displacement based on mobile terminal itself is just
Can determine the displacement by impact point in picture and moving direction.
It can be seen that, by adopting such scheme, by the external measurement apparatus of first interface, and can collect with reference to itself
Image information, determines the distance between some position and mobile terminal in picture.Entered thus, being to ensure that by optical signal
Row distance is tested, and the accuracy of the measurement result for obtaining is higher, and can be combined with the image information for gathering, so as to carry
For more intuitively effect.
Further, since the focal length of image acquisition units can be adjusted in conjunction with range measurements, it is possible to real
Focusing process is now rapidly completed, and lifting mobile terminal carries out accuracy and the efficiency of image acquisition；
Additionally it is possible to the movement for detecting measurement apparatus further adjusts the position of the impact point in mobile terminal, also real
Show once after establishing a connection with measurement apparatus, no matter how measurement apparatus move adjustment mesh that can be fast automatic
The position of punctuate, so that quickly determine the distance between impact point and mobile terminal after adjustment.
Embodiment six,
A kind of Range Measurement System is embodiments provided, as shown in Figure 10, the system includes：
Mobile terminal 1 001, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered
Distance measurement mode；Collection includes the picture of the measurement luminous point, in the picture arranges the measurement luminous point position
For impact point；The connection that is set up with the measurement apparatus by the first interface, gets the pin of the measurement apparatus feedback
Range measurements to the impact point of the target area；
Measurement apparatus 1002, for based on the control of mobile terminal send measurement light and described measurement light in mesh
Mark region produces measurement luminous point.
The function of the mobile terminal provided in the present embodiment is identical with example IV and embodiment five, no longer carries out here
Repeat.
As shown in figure 11, the measurement apparatus include：
Laser ranging module 1101, for sending measurement light；
Control unit 1102, the return projector of the measurement light for being received based on laser ranging module are determined and target
The distance in region, based on the distance modulated into square wave, sends the square wave to the shifting by the first interface of mobile terminal
Dynamic terminal.
One of this programme is embodied as hardware, may refer to Figure 12 laser ranging modules for existing mature technology, passes through
TTL serial ports is communicated with host computer, it would be desirable to by a MCU i.e. control unit, to real-time status information and
Range data is parsed, by delivering to mobile terminal on the audio port Mic passages of mobile terminal.
The range data of Serial Port Transmission is parsed by a MCU, be then converted into characteristic frequency and dutycycle
Square-wave signal, delivers to mobile terminal parsing by the Mic pins of audio frequency of mobile terminal port, and mobile terminal is not to stopping the arteries and veins for changing
Rush signal to be parsed, so as to calculate the distance of laser ranging module feedback.Due to being communicated using audio port, right
Terminal compatible good.While laser ranging module is effectively fixed, can be rotated in the range of 360 ° and
The communication with mobile terminal will not be interrupted, this is that other PORT COM can not be compared.We can easily set one
Using scene, under mobile phone photograph pattern, a sight bead can be set in the fixed position of mobile terminal screen.This sight bead
Absolute position is identical with present laser light spot position.So we can open photographing unit in the case of hand-held mobile terminal
Pattern, the target that sight bead alignment is wanted measurement distance, very easily can get impact point and current location on screen
Range information.The range data can also assisted photographic machine focusing work, greatly improve focusing speed.
In conjunction with the structure of above-mentioned measurement apparatus, a specific real time process flow is provided referring to Figure 13, pass through mode of laser first
Group is found range, and produces data in TTL serial ports；And then data parsing is carried out by MCU control unit, it is calculated duty
Than；PWM ripples are produced based on dutycycle and intervalometer；Square wave is received by the earphone Mic interface channels of mobile terminal, is counted in real time
Calculation obtains dutycycle；Bring dutycycle into distance calculating function to obtain real-time range and print range measurement on screen tying
Really.
Thus, by a MCU control unit, believing in the distance that serial ports sends to existing small-sized TTL laser ranging modules
Number parsed, be modulated into the different square-wave pulse signal of dutycycle, by shifting being sent on the Mic passages of audio frequency of mobile terminal mouth
Dynamic terminal, enables mobile terminal to carry out range finding work to impact point in real time, as a result of audio port and mobile terminal
Data interaction is carried out, the module arbitrarily can rotate in the horizontal plane, be convenient for measuring work.Whole to movement in effective fixed module
In the case of end, flexible rotation adjustment can be carried out.Sight bead can be set on screen, after laser ranging module is fixed, calibration
The sight bead for finishing can facilitate in a photography mode intuitively the distance of impact point is measured, and be printed upon under screen
Side.Meanwhile, range data can also assisted photographic machine focus operation, substantially increase focusing speed.It is to achieve many things at one stroke.Can
Developing carries out supporting sale for mobile terminal peripheral product, has expanded the function of mobile terminal, solves user's pain spot, increased
Playability and Consumer's Experience.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property includes, so that a series of process, method, article or device including key elements not only includes those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform by software to realize, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Such understanding is based on, technical scheme is substantially done to prior art in other words
The part for going out contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), use including some instructions so that equipment (can be mobile phone, computer, service
Device, air-conditioner, or network equipment etc.) execute method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of distance measurement method, is applied to mobile terminal, it is characterised in that methods described includes：
Set up with measurement apparatus by first interface and be connected, controlled the measurement apparatus and enter distance measurement mode, so that the survey
Amount device sends measurement light, and the measurement light produces measurement luminous point in target area；
The picture for including the measurement luminous point by image acquisition units collection, by the measurement luminous point institute in the picture
Install in place and be set to impact point；
The connection that is set up with the measurement apparatus by the first interface, get measurement apparatus feedback for described
The range measurements of the impact point of target area.
2. method according to claim 1, it is characterised in that described get the measurement apparatus feedback for described
After the range measurements of the impact point of target area, methods described also includes：
Based on the range measurements, the focal length of described image collecting unit is adjusted, so that described image collection
The focal length coupling collection distance of unit is with the target area apart from identical area image.
3. method according to claim 1, it is characterised in that described built with the measurement apparatus by the first interface
Vertical connection, gets the range measurements of the impact point for the target area of the measurement apparatus feedback, including：
The square wave corresponding with range measurements is got by the first interface, the square wave is carried out parsing
To the distance with the impact point of the target area.
4. method according to claim 1, it is characterised in that methods described also includes：
Detect the adjustment angle of the measurement apparatus；
Based on the adjustment angle, the impact point in the picture is adjusted, so that the impact point and measurement after adjustment
The measurement luminous point produced in target area after device adjustment angle overlaps；
The connection that is set up with the measurement apparatus by the first interface, is got the measurement apparatus and is directed to after the adjustment
The range measurements of the impact point of the target area.
5. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
Control unit, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered distance measurement mode,
So that the measurement apparatus send measurement light, the measurement light and produce measurement luminous point in target area；
Image acquisition units, for the picture that collection includes the measurement luminous point, by the measurement luminous point in the picture
Position is set to impact point；
Distance acquiring unit, for the connection that sets up with the measurement apparatus by the first interface, gets the measurement
The range measurements of the impact point for the target area of device feedback.
6. mobile terminal according to claim 5, it is characterised in that described image collecting unit, for based on described away from
From measurement result, the focal length of described image collecting unit is adjusted, so that the focal length coupling of described image collecting unit
Collection distance is with the target area apart from identical area image.
7. mobile terminal according to claim 5, it is characterised in that
The distance acquiring unit, for getting the side corresponding with range measurements by the first interface
Ripple, carries out parsing the distance obtained with the impact point of the target area to the square wave.
8. mobile terminal according to claim 5, it is characterised in that the mobile terminal also includes：
Detector unit, for detecting the adjustment angle of the measurement apparatus；
Described image collecting unit, for based on the adjustment angle, being adjusted to the impact point in the picture, so that
Impact point after adjustment is overlapped with the measurement luminous point produced in target area after measurement apparatus adjustment angle；
The distance acquiring unit, for the connection that is set up with the measurement apparatus by the first interface, is got described
Measurement apparatus range measurements after the adjustment for the impact point of the target area.
9. a kind of Range Measurement System, it is characterised in that the system includes：
Mobile terminal, is connected for being set up with measurement apparatus by first interface, is controlled the measurement apparatus and is entered distance measurement mode；
Collection includes the picture of the measurement luminous point, and the measurement luminous point position is set to impact point in the picture；
The connection that is set up with the measurement apparatus by the first interface, get measurement apparatus feedback for the target
The range measurements of the impact point in region；
Measurement apparatus, for based on the control of mobile terminal send measurement light and described measurement light target area produce
Raw measurement luminous point.
10. system according to claim 9, it is characterised in that the measurement apparatus include：
Laser ranging module, for sending measurement light；
Control unit, the return projector of the measurement light for being received based on laser ranging module determine with target area away from
From based on the distance modulated into square wave, by the first interface transmission of the mobile terminal square wave to the mobile terminal.
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