CN106790992A - Safety prompt function method and smart mobile phone - Google Patents
Safety prompt function method and smart mobile phone Download PDFInfo
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- CN106790992A CN106790992A CN201611042575.5A CN201611042575A CN106790992A CN 106790992 A CN106790992 A CN 106790992A CN 201611042575 A CN201611042575 A CN 201611042575A CN 106790992 A CN106790992 A CN 106790992A
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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
- H04M1/72418—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services
- H04M1/72421—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services with automatic activation of emergency service functions, e.g. upon sensing an alarm
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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
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
-
- 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
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72457—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location
-
- 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
- H04M1/72484—User interfaces specially adapted for cordless or mobile telephones wherein functions are triggered by incoming communication events
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- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of safety prompt function method, the method includes：Whether detection user uses the state of smart mobile phone in walking process, if, then start the rear camera of smart mobile phone, focusing position information during according to rear camera real-time image acquisition determines the changing value of object distance, the object distance refers to the distance between scenery and rear camera of rear camera focusing, if the changing value of the object distance is more than preset value, safety prompt function is carried out according to preset alerting pattern.The invention also discloses a kind of smart mobile phone, detect user be in walking process in use smart mobile phone state when, focusing position information during by using rear camera real-time image acquisition determines the changing value of object distance, make it possible to effectively determine that the coverage of rear camera is interior with the presence or absence of the scenery that potential safety hazard is brought to user, to carry out safety prompt function in time, reduce potential safety hazard, it is to avoid accidents happened.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of safety prompt function method and smart mobile phone.
Background technology
At present, with the exploitation of smart mobile phone, smart mobile phone function is stronger and stronger, and the user for possessing smart mobile phone also gets over
Come more, smart mobile phone has been also convenient for the life of people.
However, user is when using smart mobile phone, often occurs and play the situation of mobile phone while bowing on foot on one side, compare
Danger, easily accidents happened, there is hidden trouble of traffic.
The content of the invention
It is a primary object of the present invention to provide a kind of safety prompt function method and smart mobile phone, it is intended to solve in the prior art
User brings the problem of potential safety hazard using smart mobile phone in the process of walking.
To achieve the above object, first aspect present invention provides a kind of safety prompt function method, including：
Whether detection user uses the state of smart mobile phone in walking process；
If so, then start the rear camera of the smart mobile phone, during according to the rear camera real-time image acquisition
Focusing position information determine the changing value of object distance, the object distance refers to that the scenery of the rear camera focusing is rearmounted with described
The distance between camera；
If the changing value of the object distance is more than preset value, safety prompt function is carried out according to preset alerting pattern.
To achieve the above object, second aspect present invention provides a kind of smart mobile phone, including：
Detection module, for detecting whether user uses the state of the smart mobile phone in walking process；
Change determining module, for if so, then start the rear camera of the smart mobile phone, according to the rearmounted shooting
Focusing position information during head real-time image acquisition determines the changing value of object distance, and the object distance refers to the rear camera focusing
The distance between scenery and the rear camera；
Prompting module, if being more than preset value for the changing value of the object distance, is pacified according to preset alerting pattern
It is complete to remind.
The present invention provides a kind of safety prompt function method, and in the method, whether detection user uses in walking process
The state of smart mobile phone, if so, then start the rear camera of smart mobile phone, during according to rear camera real-time image acquisition
Focusing position information determines the changing value of object distance, and the object distance refers between the scenery and rear camera of rear camera focusing
Distance, if the changing value of the object distance is more than preset value, safety prompt function is carried out according to preset alerting pattern.Relative to existing skill
Art, detect user be in walking process in use smart mobile phone state when, obtained in real time by using rear camera
Focusing position information during image determines the changing value of object distance, enabling be in the coverage for effectively determining rear camera
It is no to there is the scenery that potential safety hazard is brought to user, to carry out safety prompt function in time, reduce potential safety hazard, it is to avoid accidents happened.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those skilled in the art, without having to pay creative labor, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structured flowchart of mobile terminal；
Fig. 2 is the schematic flow sheet of safety prompt function method in first embodiment of the invention；
Fig. 3 is focusing position when obtaining figure in first embodiment of the invention in step 202 in real time according to rear camera
Confidence breath determines the schematic flow sheet of the refinement step of the changing value of object distance；
Fig. 4 is the schematic flow sheet of the refinement step of step 201 in first embodiment of the invention；
Fig. 5 is the schematic flow sheet of the refinement step of step 201 in first embodiment of the invention；
Fig. 6 is the schematic diagram of the functional module of smart mobile phone in second embodiment of the invention；
Fig. 7 is the schematic diagram of the refinement functional module of change determining module 602 in second embodiment of the invention；
Fig. 8 is the schematic diagram of the refinement functional module of detection module 601 in second embodiment of the invention；
Fig. 9 is the schematic diagram of the refinement functional module of detection module 601 in second embodiment of the invention.
Specific embodiment
To enable that goal of the invention of the invention, feature, advantage are more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described reality
It is only a part of embodiment of the invention to apply example, and not all embodiments.Based on the embodiment in the present invention, people in the art
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 shows a kind of structured flowchart of mobile terminal.Safety prompt function method provided in an embodiment of the present invention can be applied
In smart mobile phone 10 as shown in Figure 1.
As shown in figure 1, smart mobile phone 10 includes memory 101, storage control 102, one or more (only show in figure
One) processor 103, Peripheral Interface 104, radio-frequency module 105, key-press module 106, audio-frequency module 107 and Touch Screen
108.These components are mutually communicated by one or more communication bus/holding wire 109.
It is appreciated that the structure shown in Fig. 1 is only to illustrate, it does not cause to limit to the structure of smart mobile phone.Intelligent hand
Machine 10 may also include components more more than shown in Fig. 1 or less, or with the configuration different from shown in Fig. 1.Shown in Fig. 1
Each component can be realized using hardware, software or its combination.
Memory 101 can be used to storing software program and module, safety prompt function method such as in the embodiment of the present invention and
Corresponding programmed instruction/the module of smart mobile phone, processor 103 by run software program of the storage in memory 101 and
Module, so as to perform various function application and data processing, that is, realizes above-mentioned safety prompt function method.
Memory 101 may include high speed random access memory, may also include nonvolatile memory, such as one or more magnetic
Property storage device, flash memory or other non-volatile solid state memories.In some instances, memory 101 can be further included
The memory remotely located relative to processor 103, these remote memories can be by network connection to smart mobile phone 10.On
State example including but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof of network.Processor 103
And access of other possible components to memory 101 can be carried out under the control of storage control 102.
Various input/output devices are coupled to CPU and memory 101 by Peripheral Interface 104.The operation of processor 103 is deposited
Various softwares in reservoir 101, instruction are performing the various functions of smart mobile phone 10 and carry out data processing.
In certain embodiments, Peripheral Interface 104, processor 103 and storage control 102 can be in one single chips
Realize.In some other example, they can be realized by independent chip respectively.
Radio-frequency module 105 is used to receive and send electromagnetic wave, realizes the mutual conversion of electromagnetic wave and electric signal, so that with
Communication network or other equipment are communicated.Radio-frequency module 105 may include the various existing electricity for performing these functions
Circuit component, for example, antenna, RF transceiver, digital signal processor, encryption/deciphering chip, subscriber identity module (SIM) card,
Memory etc..Radio-frequency module 105 can with various networks for example internet, intranet, preset type wireless network carry out
Communication or the wireless network by preset type are communicated with other equipment.The wireless network of above-mentioned preset type can be wrapped
Include cellular telephone networks, WLAN or Metropolitan Area Network (MAN).The wireless network of above-mentioned preset type can use various communications
Standard, agreement and technology, including but not limited to global system for mobile communications (Global System for Mobile
Communication, GSM), enhanced mobile communication technology (Enhanced Data GSM Environment, EDGE) is wide
Band CDMA (Wideband Code Division Multiple Access, W-CDMA), CDMA
(Code Division Access, CDMA), tdma (Time Division Multiple Access, TDMA),
Bluetooth, adopting wireless fidelity technology (Wireless-Fidelity, WiFi) (such as IEEE-USA's standard IEEE
802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), the networking telephone (Voice over
Internet Protocal, VoIP), worldwide interoperability for microwave accesses (Worldwide Interoperability for
Microwave Access, Wi-Max), other are used for the agreement of mail, instant messaging and short message, and any other is suitable
Communications protocol.
Key-press module 106 provides the interface that is input into smart mobile phone of user, user can by press it is different by
Key is so that smart mobile phone 10 performs different functions.
Audio-frequency module 107 provides a user with COBBAIF, and it may include one or more microphones, one or more raises
Sound device and voicefrequency circuit.Voicefrequency circuit receives voice data from Peripheral Interface 104, and voice data is converted into power information,
Power information is transmitted to loudspeaker.Power information is converted to the sound wave that human ear can be heard by loudspeaker.Voicefrequency circuit is also from microphone
Place receives power information, converts electrical signals to voice data, and by data transmission in network telephony to Peripheral Interface 104 entering traveling one
The treatment of step.Voice data can be obtained from memory 101 or by radio-frequency module 105.Additionally, voice data can also
Store into memory 101 or be transmitted by radio-frequency module 105.In some instances, audio-frequency module 107 may also include
One earphone broadcasts hole, for providing COBBAIF to earphone or other equipment.
Touch Screen 108 provides an output and inputting interface simultaneously between smart mobile phone and user.Specifically, touch-control
Screen 108 shows video frequency output to user, and the content of these video frequency outputs may include word, figure, video and its any group
Close.Some output results correspond to some user interface objects.Touch Screen 108 also receives the input of user, such as user
The gesture operation such as click, slip, the input so as to user interface object to these users responds.Detection user input
Technology can be based on resistance-type, condenser type or other any possible touch control detection technologies.The display unit of Touch Screen 108
Instantiation include but is not limited to liquid crystal display or light emitting polymer displays.
Safety prompt function method in the embodiment of the present invention is described based on above-mentioned smart mobile phone.
The technology for bringing potential safety hazard using smart mobile phone in the process of walking due to there is user in the prior art is asked
Topic.
In order to solve the above problems, the present invention proposes a kind of safety prompt function method, and walking process is in user is detected
During the state of middle use smart mobile phone, focusing position information during by using rear camera real-time image acquisition determines object distance
Changing value, enabling effectively determine in the coverage of rear camera with the presence or absence of bringing the scape of potential safety hazard to user
Thing, to carry out safety prompt function in time, reduces potential safety hazard, it is to avoid accidents happened.
Fig. 2 is referred to, is the schematic flow sheet of safety prompt function method in first embodiment of the invention, the method includes：
Whether step 201, detection user use the state of smart mobile phone in walking process；
Step 202, if so, then starting the rear camera of the smart mobile phone, obtains in real time according to the rear camera
Focusing position information when taking image determines the changing value of object distance, the object distance refer to the rear camera focusing scenery with
The distance between described rear camera；
If the changing value of step 203, the object distance is more than preset value, carries out safety according to preset alerting pattern and carry
Wake up.
In embodiments of the present invention, smart mobile phone will detect whether user uses the shape of smart mobile phone in walking process
State, wherein, smart mobile phone specifically can be by the various kinds of sensors set in smart mobile phone and/or the first-class detection user of shooting
Whether in the walking process using the state of smart mobile phone, it is necessary to explanation, the specific detection mode of smart mobile phone will
It is described in detail in embodiment below, is not repeated herein.
In embodiments of the present invention, smart mobile phone is it is determined that use the state of smart mobile phone during user is in walking process
When, the rear camera of smart mobile phone being started, focusing position information during according to the rear camera real-time image acquisition is true
Earnest away from changing value.
Wherein, rear camera only can start on backstage, i.e., do not show on the screen of smart mobile phone that this rearmounted is taken the photograph
As the image that head is obtained, smart mobile phone is normally used to avoid interference user, or, the rear camera starts it on backstage
Afterwards, the image for shooting can be shown by the form of wicket so that use in the case where the use of smart mobile phone foreground is not changed
In the process of walking, the image that can be obtained by the rear camera determines front with the presence or absence of danger at family.
Wherein, rear camera will adjust the focus of camera, to obtain when image is obtained by way of auto-focusing
Take clearly image, and the focus used when clearly image is got position as focusing position information.
Wherein, object distance refers to the distance between scenery and rear camera of rear camera focusing.
In embodiments of the present invention, user in the process of walking use mobile phone when, rear camera by real-time image acquisition,
The image is the image of the scenery in front of user, and the change of object distance is determined by obtaining focusing position information during image
Value.When usual user uses smart mobile phone in the process of walking, if in the coverage of rear camera being flat road,
Focusing position information when it obtains image can't change, or change smaller (such as less than 5cm), if rearmounted shooting
There is barrier suddenly in the coverage of head, such as tree, electric pole, car, rear camera in order to obtain clearly image,
The position of focus will be adjusted so that focusing position information changes, and because focusing position information changes, based on this pair
The object distance that burnt positional information is obtained will also change, and in this case, object distance would generally have a greater change (such as larger than 10cm),
Therefore, the changing value that can be based on object distance determines user front with the presence or absence of barrier.
Additionally, in addition to it can be based on the changing value of object distance and determine barrier, the changing value for being also based on object distance determines
Whether the front of user has hole, step up or down etc. that the situation of danger is brought to user.Specifically, user is in walking
During using smart mobile phone when, if rear camera shoot in the range of be uneven, rugged road, or suddenly
There is step up or down, rear camera will adjust the position of focus in order to get clearly image so that
Focal position information changes, and because focal position information changes, will bring the change of object distance, accordingly it is also possible to
Changing value based on object distance determines the front of user with the presence or absence of the situation that danger is brought to user.
Knowable to foregoing description, the present invention is based on barrier occur in front of user or other bring danger to user
Situation when, rear camera obtain object distance the principle for changing is determined the need for carry out safety instruction.
In embodiments of the present invention, if the changing value of object distance is more than preset value, pacified according to preset alerting pattern
It is complete to remind.
Wherein, the preset value can be the numerical value obtained by experiment method, may be referred in actual applications, rearmounted to take the photograph
During as automobile, electric pole, pedestrian or upward step, downward step occur suddenly in the image that head is obtained, object distance occurs
Change be configured, can be configured according to specific circumstances in actual applications, do not limit herein.
In embodiments of the present invention, the changing value of object distance includes two kinds of situations, the increment value of such as object distance more than preset value
Decreasing value more than preset value, and object distance is more than preset value.
Wherein, preset alerting pattern can be voice reminder, in display interface display reminding text or be that alarm bell is carried
Awake etc. mode, does not limit herein.
In embodiments of the present invention, smart mobile phone will detect whether user uses the shape of smart mobile phone in walking process
State, if so, then starting the rear camera of smart mobile phone, focusing position information during according to rear camera real-time image acquisition
Determine the changing value of object distance, the object distance refers to the distance between scenery and rear camera of rear camera focusing, if the thing
Away from changing value be more than preset value, then carry out safety prompt function according to preset alerting pattern.Relative to prior art, detecting
When user uses the state of smart mobile phone in walking process, focusing during by using rear camera real-time image acquisition
Positional information determines the changing value of object distance, enabling effectively determine to whether there is to user in the coverage of rear camera
The scenery of potential safety hazard is brought, to carry out safety prompt function in time, potential safety hazard is reduced, it is to avoid accidents happened.
Refer to Fig. 3, be in first embodiment of the invention in step 202 according to rear camera real-time image acquisition when
Focusing position information determines the schematic flow sheet of the refinement step of the changing value of object distance, including：
Step 301, the focusing position information that the rear camera is obtained at interval of preset time period；
Step 302, according to the focusing position information calculate object distance；
Step 303, the object distance being calculated using the object distance and last time that are calculated determine the changing value of the object distance.
In embodiments of the present invention, smart mobile phone is it is determined that use the state of smart mobile phone during user is in walking process
Afterwards, the rear camera of smart mobile phone will be started, and determines thing by way of the focusing position information for obtaining rear camera
Away from changing value.
Specifically, smart mobile phone will obtain the focusing position information of rear camera at interval of preset time period, and utilization should
Focusing position information calculates object distance, and the change of object distance is determined using the object distance that the object distance and last time that are calculated are calculated
Value value.
Wherein, preset time period can be in walking process using in the state of smart mobile phone based on user, the row of user
Walk speed determination, so as to the speed of travel of user it is very fast when, the preset time period can be arranged on a smaller value, and user
When the speed of travel is slower, the preset time period can be arranged on a higher value, and the speed of travel with user change, should
Preset time period can also be adjusted in real time, for example, the required time when preset time period can be set into 1 meter of user's walking
Half.Or, the preset time period could be arranged to a constant, such as 0.3s, 0.5s etc., in actual applications, can root
Set according to particular situation, do not limited herein.
In embodiments of the present invention, focal length value and image distance value are specifically included in focusing position information, smart mobile phone can be by
According to preset object distance computational algorithm, calculated using the focal length value and the image distance value, obtained the object distance.
Wherein, focal length value is the distance between two focuses after rear camera completes focusing, and image distance value represents rearmounted
Camera after entity scenery passes through its convex lens, the distance between real image of formation and convex lens.
Wherein, above-mentioned object distance computational algorithm is specially：U=VF/ (V-F), wherein, U represents the object distance being calculated, V
Image distance value is represented, F represents focal length value.
In embodiments of the present invention, smart mobile phone will record the object distance being calculated each time, and be calculated each time
To after object distance, the object distance is the last object distance being calculated, and smart mobile phone will be calculated using the last time
Object distance the changing value value of object distance is determined with the last object distance being calculated.
Wherein it is possible to the object distance that the last time is calculated subtracts the difference of the last object distance being calculated as thing
Away from changing value, and the difference be more than 0 when, show object distance increase, the difference be less than 0 when, show object distance reduce, and no matter
Object distance increase or reduction, when the changing value of object distance is compared with preset value to determine the need for carrying out safety prompt function, be
It is compared using the absolute value of the difference.And when the changing value of the object distance is more than preset value, show to be deposited in front of user
The scenery of potential safety hazard is being brought to user.
In embodiments of the present invention, through the above way, the meter can be may be by when object distance is calculated every time
The object distance for obtaining determines the changing value of object distance with the last object distance being calculated, enabling the changing value by object distance is true
It is fixed to whether there is the scenery that potential safety hazard is brought to user, and in the presence of, safety prompt function is carried out, with reduce risk.
Based on first embodiment shown in Fig. 2, Fig. 4 is referred to, be step 201 in first embodiment shown in Fig. 2 of the present invention
The schematic flow sheet of refinement step, including：
Step 401, when the smart mobile phone is in illuminating state, obtain gyro sensor sense in the smart mobile phone
The acceleration magnitude that the angle value and acceleration transducer that should be arrived are sensed；
Step 402, whether the angle value is determined in the angular range that pre-sets, and utilize the acceleration magnitude
Determine whether the user is in away line state；
If step 403, the angle value are in the angular range for pre-setting, and determine that the user is in away
Line state, it is determined that the user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, when smart mobile phone is in illuminating state, represent that user is currently in use the smart mobile phone, be
Whether determination user is to use smart mobile phone in walking process, and the smart mobile phone will obtain gyro sensors in smart mobile phone
The acceleration magnitude that the angle value and acceleration transducer that device is sensed are sensed.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, be typically at and bow, and hand-held intelligent hand
Machine simultaneously causes that smart mobile phone keeps the state horizontal by now certain angle, and the angle can be 30 degree to 90 degree of scope
It is interior, and the angular range that will be pre-set is set to 30 degree to the 90 degree scopes of composition.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, user is walked with certain speed, and
The body of user is the state in constantly rising and falling during walking, therefore, will be determined using the acceleration magnitude of acceleration transducer
Whether user is in away line state.Specifically, the acceleration magnitude of acceleration transducer comprising the acceleration magnitude in vertical direction and
Acceleration magnitude in horizontal direction, smart mobile phone can utilize the acceleration magnitude in vertical direction to determine whether smart mobile phone occurs
Shake up and down, and using the acceleration magnitude in horizontal direction determine smart mobile phone translational speed (as user walking speed
Degree), it is determined that smart mobile phone occur shake up and down, and smart mobile phone translational speed non-zero and the translational speed be in it is default
When in the range of walking speed, then can determine that user is in away line state.Wherein, preset the walking speed scope and be mainly consideration
To user when on foot, its translational speed is limited, and if using smart mobile phone, user simultaneously when walking in view of user
The speed of travel generally it is smaller, therefore, more accurately can determine whether user is in away by setting the walking speed scope
Line state, and further determine whether to use smart mobile phone when on foot.
Wherein, if the angle value that gyro sensor is sensed is in the angular range for pre-setting, and user is determined
When being in away line state, then can determine that user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, it is under illuminating state in smart mobile phone, by using gyro sensor and acceleration
Degree sensor, can effectively determine whether user uses the state of smart mobile phone in walking process.
Based on first embodiment shown in Fig. 2, Fig. 5 is referred to, be step 201 in first embodiment shown in Fig. 2 of the present invention
The schematic flow sheet of refinement step, including：
Step 501, when the smart mobile phone is in illuminating state, obtained by the front camera of the smart mobile phone
Image, and obtain the acceleration magnitude that the acceleration transducer in the smart mobile phone is sensed；
Step 502, determine that whether the image that the front camera is obtained is comprising face and true using the acceleration magnitude
Whether the fixed user is in away line state；
Step 503, if it is determined that the image that the front camera is obtained includes face, and determine that the user is in and walk
State, it is determined that the user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, when smart mobile phone is in illuminating state, represent that user is currently in use the smart mobile phone, and
In order to improve accuracy, smart mobile phone will obtain image by front camera, and obtain it is that acceleration transducer is sensed plus
Speed value, and determine whether whether the image of front camera acquisition extremely determines user on foot comprising face and using acceleration
State, and it is determined that the image that front camera is obtained includes face, and determine user when being in away line state, it is determined that user
The state of smart mobile phone is used in walking process.
Wherein, it is contemplated that when user uses smart mobile phone, face is in the coverage of front camera, therefore, intelligence
Energy mobile phone will open front camera, and by whether analyzing the image of front camera acquisition comprising face, to determine to use
Whether family is currently in use smart mobile phone.
Wherein, after switching, the use in order to avoid interference user currently to smart mobile phone will be rear for front camera
Platform runs, and the image not obtained in foreground display camera.It is understood that having had various in figure in the prior art
The mode of face is detected as in, is not repeated herein.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, user is walked with certain speed, and
The body of user is the state in constantly rising and falling during walking, therefore, will be determined using the acceleration magnitude of acceleration transducer
Whether user is in away line state.Specifically, the acceleration magnitude of acceleration transducer comprising the acceleration magnitude in vertical direction and
Acceleration magnitude in horizontal direction, smart mobile phone can utilize the acceleration magnitude in vertical direction to determine whether smart mobile phone occurs
Shake up and down, and using the acceleration magnitude in horizontal direction determine smart mobile phone translational speed (as user walking speed
Degree), it is determined that smart mobile phone occur shake up and down, and smart mobile phone translational speed non-zero and the translational speed be in it is default
When in the range of walking speed, then can determine that user is in away line state.Wherein, preset the walking speed scope and be mainly consideration
To user when on foot, its translational speed is limited, and if using smart mobile phone, user simultaneously when walking in view of user
The speed of travel generally it is smaller, therefore, more accurately can determine whether user is in away by setting the walking speed scope
Line state, and further determine whether to use smart mobile phone when on foot.
In embodiments of the present invention, it is under illuminating state in smart mobile phone, by using front camera and acceleration
Sensor, can effectively determine whether user uses the state of smart mobile phone in walking process.
Fig. 6 is referred to, is the schematic diagram of the functional module of smart mobile phone in second embodiment of the invention, the smart mobile phone bag
Include：
Detection module 601, for detecting whether user uses the state of the smart mobile phone in walking process；
Change determining module 602, for if so, then start the rear camera of the smart mobile phone, according to described rearmounted
Focusing position information during camera real-time image acquisition determines the changing value of object distance, and the object distance refers to the rear camera
The distance between the scenery of focusing and described rear camera；
Prompting module 603, if being more than preset value for the changing value of the object distance, is carried out according to preset alerting pattern
Safety prompt function.
In embodiments of the present invention, smart mobile phone will detect whether user uses the shape of smart mobile phone in walking process
State, wherein, smart mobile phone specifically can be by the various kinds of sensors set in smart mobile phone and/or the first-class detection user of shooting
Whether the state of smart mobile phone is used in walking process.
In embodiments of the present invention, detection module 601 is it is determined that use the shape of smart mobile phone during user is in walking process
During state, the rear camera of smart mobile phone will be started by change determining module 602, and figure is obtained according to the rear camera in real time
As when focusing position information determine the changing value of object distance.
Wherein, rear camera only can start on backstage, i.e., do not show on the screen of smart mobile phone that this rearmounted is taken the photograph
As the image that head is obtained, smart mobile phone is normally used to avoid interference user, or, the rear camera starts it on backstage
Afterwards, the image for shooting can be shown by the form of wicket so that use in the case where the use of smart mobile phone foreground is not changed
In the process of walking, the image that can be obtained by the rear camera determines front with the presence or absence of danger at family.
Wherein, rear camera will adjust the focus of camera, to obtain when image is obtained by way of auto-focusing
Take clearly image, and the focus used when clearly image is got position as focusing position information.
Wherein, object distance refers to the distance between scenery and rear camera of rear camera focusing.
In embodiments of the present invention, user in the process of walking use mobile phone when, rear camera by real-time image acquisition,
The image is the image of the scenery in front of user, and the change of object distance is determined by obtaining focusing position information during image
Value.When usual user uses smart mobile phone in the process of walking, if in the coverage of rear camera being flat road,
Focusing position information when it obtains image can't change, or change smaller (such as less than 5cm), if rearmounted shooting
There is barrier suddenly in the coverage of head, such as tree, electric pole, car, rear camera in order to obtain clearly image,
The position of focus will be adjusted so that focusing position information changes, and because focusing position information changes, based on this pair
The object distance that burnt positional information is obtained will also change, and in this case, object distance would generally have a greater change (such as larger than 10cm),
Therefore, the changing value that can be based on object distance determines user front with the presence or absence of barrier.
Additionally, in addition to it can be based on the changing value of object distance and determine barrier, the changing value for being also based on object distance determines
Whether the front of user has hole, step up or down etc. that the situation of danger is brought to user.Specifically, user is in walking
During using smart mobile phone when, if rear camera shoot in the range of be uneven, rugged road, or suddenly
There is step up or down, rear camera will adjust the position of focus in order to get clearly image so that
Focal position information changes, and because focal position information changes, will bring the change of object distance, accordingly it is also possible to
Changing value based on object distance determines the front of user with the presence or absence of the situation that danger is brought to user.
Knowable to foregoing description, the present invention is based on barrier occur in front of user or other bring danger to user
Situation when, rear camera obtain object distance the principle for changing is determined the need for carry out safety instruction.
In embodiments of the present invention, if the changing value of object distance is more than preset value, pacified according to preset alerting pattern
It is complete to remind.
Wherein, the preset value can be the numerical value obtained by experiment method, may be referred in actual applications, rearmounted to take the photograph
During as automobile, electric pole, pedestrian or upward step, downward step occur suddenly in the image that head is obtained, object distance occurs
Change be configured, can be configured according to specific circumstances in actual applications, do not limit herein.
In embodiments of the present invention, the changing value of object distance includes two kinds of situations, the increment value of such as object distance more than preset value
Decreasing value more than preset value, and object distance is more than preset value.
Wherein, preset alerting pattern can be voice reminder, in display interface display reminding text or be that alarm bell is carried
Awake etc. mode, does not limit herein.
In embodiments of the present invention, smart mobile phone will detect whether user uses the shape of smart mobile phone in walking process
State, if so, then starting the rear camera of smart mobile phone, focusing position information during according to rear camera real-time image acquisition
Determine the changing value of object distance, the object distance refers to the distance between scenery and rear camera of rear camera focusing, if the thing
Away from changing value be more than preset value, then carry out safety prompt function according to preset alerting pattern.Relative to prior art, detecting
When user uses the state of smart mobile phone in walking process, focusing during by using rear camera real-time image acquisition
Positional information determines the changing value of object distance, enabling effectively determine to whether there is to user in the coverage of rear camera
The scenery of potential safety hazard is brought, to carry out safety prompt function in time, potential safety hazard is reduced, it is to avoid accidents happened.
Fig. 7 is referred to, is the schematic diagram of the refinement functional module of change determining module 602 in second embodiment shown in Fig. 6,
Including：
Starting module 701, the rear camera for starting the smart mobile phone；
First acquisition module 702, the focusing position information for obtaining the rear camera at interval of preset time period；
Computing module 703, for calculating object distance according to the focusing position information；
First determining module 704, the object distance for being calculated using the object distance and last time that are calculated determines described
The changing value of object distance.
Further, focal length value and image distance value are included in the focusing position information；
Then the computing module 703 specifically for：
According to preset object distance computational algorithm, calculated using the focal length value and the image distance value, obtained the thing
Away from.
In embodiments of the present invention, detection module 601 is it is determined that use the shape of smart mobile phone during user is in walking process
After state, the starting module 701 in change determining module 602 will start the rear camera of smart mobile phone, and be led to by other modules
The mode for crossing the focusing position information for obtaining rear camera determines the changing value of object distance.
Specifically, the first acquisition module 702 will obtain the focusing position information of rear camera at interval of preset time period, and
Object distance is calculated using the focusing position information by computing module 703, and by the first determining module 704 using the object distance being calculated
And the object distance that is calculated of last time determines the changing value value of object distance.
Wherein, preset time period can be in walking process using in the state of smart mobile phone based on user, the row of user
Walk speed determination, so as to the speed of travel of user it is very fast when, the preset time period can be arranged on a smaller value, and user
When the speed of travel is slower, the preset time period can be arranged on a higher value, and the speed of travel with user change, should
Preset time period can also be adjusted in real time, for example, the required time when preset time period can be set into 1 meter of user's walking
Half.Or, the preset time period could be arranged to a constant, such as 0.3s, 0.5s etc., in actual applications, can root
Set according to particular situation, do not limited herein.
In embodiments of the present invention, focal length value and image distance value are specifically included in focusing position information, computing module 703 can be with
According to preset object distance computational algorithm, calculated using the focal length value and the image distance value, obtained the object distance.
Wherein, focal length value is the distance between two focuses after rear camera completes focusing, and image distance value represents rearmounted
Camera after entity scenery passes through its convex lens, the distance between real image of formation and convex lens.
Wherein, above-mentioned object distance computational algorithm is specially：U=VF/ (V-F), wherein, U represents the object distance being calculated, V
Image distance value is represented, F represents focal length value.
In embodiments of the present invention, smart mobile phone will record the object distance being calculated each time, and be calculated each time
To after object distance, the object distance is the last object distance being calculated, and smart mobile phone will be calculated using the last time
Object distance the changing value value of object distance is determined with the last object distance being calculated.
Wherein it is possible to the object distance that the last time is calculated subtracts the difference of the last object distance being calculated as thing
Away from changing value, and the difference be more than 0 when, show object distance increase, the difference be less than 0 when, show object distance reduce, and no matter
Object distance increase or reduction, when the changing value of object distance is compared with preset value to determine the need for carrying out safety prompt function, be
It is compared using the absolute value of the difference.And when the changing value of the object distance is more than preset value, show to be deposited in front of user
The scenery of potential safety hazard is being brought to user.
In embodiments of the present invention, by above-mentioned module, the meter can be may be by when object distance is calculated every time
The object distance for obtaining determines the changing value of object distance with the last object distance being calculated, enabling the changing value by object distance is true
It is fixed to whether there is the scenery that potential safety hazard is brought to user, and in the presence of, safety prompt function is carried out, with reduce risk.
Fig. 8 is referred to, is the schematic diagram of the refinement functional module of detection module 601 in second embodiment shown in Fig. 6, wrapped
Include：
Second acquisition module 801, for when the smart mobile phone is in illuminating state, obtaining top in the smart mobile phone
Spiral shell instrument sensor sensing to angle value and the acceleration magnitude that senses of acceleration transducer；
Second determining module 802, for determining whether the angle value is in the angular range for pre-setting, and utilizes
The acceleration magnitude determines whether the user is in away line state；
3rd determining module 803, if being in the angular range for pre-setting for the angle value, and determines institute
State user and be in away line state, it is determined that the user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, when smart mobile phone is in illuminating state, represent that user is currently in use the smart mobile phone, be
Whether determination user is to use the smart mobile phone, the second acquisition module 801 will to obtain gyro in smart mobile phone in walking process
Instrument sensor sensing to angle value and the acceleration magnitude that senses of acceleration transducer.And second determining module 802 will determine
Whether whether the angle value is in the angular range for pre-setting, and determine user in shape on foot using the acceleration magnitude
State.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, be typically at and bow, and hand-held intelligent hand
Machine simultaneously causes that smart mobile phone keeps the state horizontal by now certain angle, and the angle can be 30 degree to 90 degree of scope
It is interior, and the angular range that will be pre-set is set to 30 degree to the 90 degree scopes of composition.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, user is walked with certain speed, and
The body of user is the state in constantly rising and falling during walking, therefore, will be determined using the acceleration magnitude of acceleration transducer
Whether user is in away line state.Specifically, the acceleration magnitude of acceleration transducer comprising the acceleration magnitude in vertical direction and
Acceleration magnitude in horizontal direction, smart mobile phone can utilize the acceleration magnitude in vertical direction to determine whether smart mobile phone occurs
Shake up and down, and using the acceleration magnitude in horizontal direction determine smart mobile phone translational speed (as user walking speed
Degree), it is determined that smart mobile phone occur shake up and down, and smart mobile phone translational speed non-zero and the translational speed be in it is default
When in the range of walking speed, then can determine that user is in away line state.Wherein, preset the walking speed scope and be mainly consideration
To user when on foot, its translational speed is limited, and if using smart mobile phone, user simultaneously when walking in view of user
The speed of travel generally it is smaller, therefore, more accurately can determine whether user is in away by setting the walking speed scope
Line state, and further determine whether to use smart mobile phone when on foot.
Wherein, if the angle value that gyro sensor is sensed is in the angular range for pre-setting, and user is determined
When being in away line state, then the 3rd determining module 803 can determine that user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, it is under illuminating state in smart mobile phone, by using gyro sensor and acceleration
Degree sensor, can effectively determine whether user uses the state of smart mobile phone in walking process.
Fig. 9 is referred to, is the signal of the refinement functional module of detection module 601 in second embodiment shown in Fig. 6 of the present invention
Figure, including：
3rd acquisition module 901, for when the smart mobile phone is in illuminating state, before the smart mobile phone
Put camera and obtain image, and obtain the acceleration magnitude that the acceleration transducer in the smart mobile phone is sensed；
Whether 4th determining module 902, for determining the image of the front camera acquisition comprising face, and utilizes institute
State acceleration magnitude and determine whether the user is in away line state；
5th determining module 903, for if it is determined that the image that the front camera is obtained includes face, and determines described
User is in away line state, it is determined that the user uses the state of smart mobile phone in walking process.
In embodiments of the present invention, when smart mobile phone is in illuminating state, represent that user is currently in use the smart mobile phone, and
In order to improve accuracy, the 3rd acquisition module 901 will obtain image by front camera, and obtain acceleration transducer sensing
The acceleration figure for arriving, and determine the image of front camera acquisition whether comprising face and using acceleration by the 4th determining module 902
Spend to whether determination user is in away line state, and it is determined that the image that front camera is obtained includes face, and determination user
When being in away line state, then the 5th determining module 903 determines that user uses the state of smart mobile phone in walking process.
Wherein, it is contemplated that when user uses smart mobile phone, face is in the coverage of front camera, therefore, intelligence
Energy mobile phone will open front camera, and by whether analyzing the image of front camera acquisition comprising face, to determine to use
Whether family is currently in use smart mobile phone.
Wherein, after switching, the use in order to avoid interference user currently to smart mobile phone will be rear for front camera
Platform runs, and the image not obtained in foreground display camera.It is understood that having had various in figure in the prior art
The mode of face is detected as in, is not repeated herein.
Wherein, it is contemplated that when user uses smart mobile phone in the process of walking, user is walked with certain speed, and
The body of user is the state in constantly rising and falling during walking, therefore, will be determined using the acceleration magnitude of acceleration transducer
Whether user is in away line state.Specifically, the acceleration magnitude of acceleration transducer comprising the acceleration magnitude in vertical direction and
Acceleration magnitude in horizontal direction, smart mobile phone can utilize the acceleration magnitude in vertical direction to determine whether smart mobile phone occurs
Shake up and down, and using the acceleration magnitude in horizontal direction determine smart mobile phone translational speed (as user walking speed
Degree), it is determined that smart mobile phone occur shake up and down, and smart mobile phone translational speed non-zero and the translational speed be in it is default
When in the range of walking speed, then can determine that user is in away line state.Wherein, preset the walking speed scope and be mainly consideration
To user when on foot, its translational speed is limited, and if using smart mobile phone, user simultaneously when walking in view of user
The speed of travel generally it is smaller, therefore, more accurately can determine whether user is in away by setting the walking speed scope
Line state, and further determine whether to use smart mobile phone when on foot.
In embodiments of the present invention, it is under illuminating state in smart mobile phone, by using front camera and acceleration
Sensor, can effectively determine whether user uses the state of smart mobile phone in walking process.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can be by it
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the module, only
Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple module or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical of device or module by some interfaces
Letter connection, can be electrical, mechanical or other forms.
The module that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as module
The part for showing can be or may not be physical module, you can with positioned at a place, or can also be distributed to multiple
On mixed-media network modules mixed-media.Some or all of module therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional module in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that modules are individually physically present, it is also possible to which two or more modules are integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.
If the integrated module is to realize in the form of software function module and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It should be noted that for foregoing each method embodiment, in order to simplicity is described, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention not by described by sequence of movement limited because
According to the present invention, some steps can sequentially or simultaneously be carried out using other.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, and involved action and module might not all be this hairs
Necessary to bright.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiments.
It is more than the description to a kind of safety prompt function method provided by the present invention and smart mobile phone, for the skill of this area
Art personnel, according to the thought of the embodiment of the present invention, will change in specific embodiments and applications, to sum up,
This specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of safety prompt function method, it is characterised in that methods described includes：
Whether detection user uses the state of smart mobile phone in walking process；
If so, then start the rear camera of the smart mobile phone, it is right during according to the rear camera real-time image acquisition
Burnt positional information determines the changing value of object distance, and the object distance refers to the scenery of the rear camera focusing and the rearmounted shooting
The distance between head；
If the changing value of the object distance is more than preset value, safety prompt function is carried out according to preset alerting pattern.
2. method according to claim 1, it is characterised in that it is described according to the rear camera real-time image acquisition when
Focusing position information include the step of determine the changing value of object distance：
The focusing position information of the rear camera is obtained at interval of preset time period；
Object distance is calculated according to the focusing position information；
The object distance being calculated using the object distance and last time that are calculated determines the changing value of the object distance.
3. method according to claim 2, it is characterised in that focal length value and image distance are included in the focusing position information
Value；
Then the step of calculating object distance according to the focusing position information is specifically included：
According to preset object distance computational algorithm, calculated using the focal length value and the image distance value, obtained the object distance.
4. the method according to claims 1 to 3 any one, it is characterised in that whether the detection user is in walking
During included using the state of smart mobile phone：
When the smart mobile phone is in illuminating state, the angle value that gyro sensor is sensed in the smart mobile phone is obtained
And the acceleration magnitude that acceleration transducer is sensed；
Determine that whether the angle value is in the angular range for pre-setting, and determine the user using the acceleration magnitude
Whether line state is in away；
If the angle value is in the angular range for pre-setting, and determines that the user is in away line state, then really
The fixed user uses the state of smart mobile phone in walking process.
5. the method according to claims 1 to 3 any one, it is characterised in that whether the detection user is in walking
During included using the state of smart mobile phone：
When the smart mobile phone is in illuminating state, image is obtained by the front camera of the smart mobile phone, and obtain
The acceleration magnitude that acceleration transducer in the smart mobile phone is sensed；
Determine that whether the image that the front camera is obtained determines that the user is comprising face, and using the acceleration magnitude
It is no to be in away line state；
If it is determined that the image that the front camera is obtained includes face, and determine that the user is in away line state, it is determined that
The user uses the state of smart mobile phone in walking process.
6. a kind of smart mobile phone, it is characterised in that the smart mobile phone includes：
Detection module, for detecting whether user uses the state of the smart mobile phone in walking process；
Change determining module, for if so, then start the rear camera of the smart mobile phone, according to the rear camera reality
When focusing position information when obtaining image determine the changing value of object distance, the object distance refers to the scape of the rear camera focusing
The distance between thing and described rear camera；
Prompting module, if being more than preset value for the changing value of the object distance, carries out safety and carries according to preset alerting pattern
Wake up.
7. smart mobile phone according to claim 6, it is characterised in that the change determining unit includes：
Starting module, the rear camera for starting the smart mobile phone；
First acquisition module, the focusing position information for obtaining the rear camera at interval of preset time period；
Computing module, for calculating object distance according to the focusing position information；
First determining module, the object distance for being calculated using the object distance and last time that are calculated determines the change of the object distance
Change value.
8. smart mobile phone according to claim 7, it is characterised in that focal length value and picture are included in the focusing position information
Away from value；
Then the computing module specifically for：
According to preset object distance computational algorithm, calculated using the focal length value and the image distance value, obtained the object distance.
9. the smart mobile phone according to claim 6 to 8 any one, it is characterised in that the detection module includes：
Second acquisition module, passes for when the smart mobile phone is in illuminating state, obtaining gyroscope in the smart mobile phone
The acceleration magnitude that the angle value and acceleration transducer that sensor is sensed are sensed；
Second determining module, for determining whether the angle value is in the angular range for pre-setting, and is added using described
Velocity amplitude determines whether the user is in away line state；
3rd determining module, if being in the angular range for pre-setting for the angle value, and determines the user
It is in away line state, it is determined that the user uses the state of smart mobile phone in walking process.
10. the smart mobile phone according to claim 6 to 8 any one, it is characterised in that the detection module includes：
3rd acquisition module, for when the smart mobile phone is in illuminating state, by the preposition shooting of the smart mobile phone
Head obtains image, and obtains the acceleration magnitude that the acceleration transducer in the smart mobile phone is sensed；
Whether 4th determining module, for determining the image of the front camera acquisition comprising face, and utilizes the acceleration
Angle value determines whether the user is in away line state；
5th determining module, for if it is determined that the image that the front camera is obtained is included at face, and the determination user
In walking line state, it is determined that the user is in walking process and uses the state of smart mobile phone.
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| CN201611042575.5A CN106790992A (en) | 2016-11-21 | 2016-11-21 | Safety prompt function method and smart mobile phone |
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Application publication date: 20170531 |