CN107770359A - A kind of obstacle based reminding method and mobile device - Google Patents

A kind of obstacle based reminding method and mobile device Download PDF

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Publication number
CN107770359A
CN107770359A CN201610682463.XA CN201610682463A CN107770359A CN 107770359 A CN107770359 A CN 107770359A CN 201610682463 A CN201610682463 A CN 201610682463A CN 107770359 A CN107770359 A CN 107770359A
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CN
China
Prior art keywords
mobile
angle
road
distance value
value
Prior art date
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CN201610682463.XA
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Chinese (zh)
Inventor
张小龙
Original Assignee
深圳市中兴微电子技术有限公司
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Priority to CN201610682463.XA priority Critical patent/CN107770359A/en
Publication of CN107770359A publication Critical patent/CN107770359A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C7/00Tracing profiles
    • G01C7/02Tracing profiles of land surfaces
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/18Status alarms
    • G08B21/24Reminder alarms, e.g. anti-loss alarms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72563Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances
    • H04M1/72569Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances according to context or environment related information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/12Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion

Abstract

The invention discloses a kind of obstacle based reminding method, including:When it is determined that mobile device be in mobile status and determine user's sight concentrate on the mobile device when, the mobile device road surface ahead information is detected in setting range;When determining to need to remind according to the road surface ahead information, generate and send obstacle alerting signal, and preceding object prompting is carried out according to the obstacle alerting signal.The invention also discloses a kind of mobile device.

Description

A kind of obstacle based reminding method and mobile device

Technical field

The present invention relates to moving communicating field mobile device functionality administrative skill, more particularly to a kind of obstacle based reminding method and Mobile device.

Background technology

With the fast development of mobile communication technology, mobile device uses more and more extensive.Due to the facility of mobile device The rich and varied property of property and its function so that in daily life, often occur that mobile device user is checked in walking The situation of mobile device.

When mobile device is used in gait processes, user often bows and notice is absorbed on mobile device, this When, it is difficult to find in time, in this way, security incident easily occurs if there are the unsafe conditions such as barrier in road surface ahead.

Therefore, mobile device user is checked in walking safer during mobile device, is urgently to be resolved hurrily ask Topic.

The content of the invention

In view of this, the embodiment of the present invention provides a kind of obstacle based reminding method and mobile device, can be to checking shifting in movement The user of dynamic equipment carries out road surface ahead obstacle prompting in time, reduces security incident.

To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in:

The embodiments of the invention provide a kind of obstacle based reminding method, the obstacle based reminding method includes:

When it is determined that mobile device be in mobile status and determine user's sight concentrate on the mobile device when, setting In the range of detect the mobile device road surface ahead information;

When determining to need to remind according to the road surface ahead information, generate and send obstacle alerting signal, and according to described Obstacle alerting signal carries out obstacle prompting.

In such scheme, the determination mobile device is in mobile status and determines that user's sight concentrates on the movement and set Before upper, the obstacle based reminding method also includes:

When the display screen of the mobile device is active, whether the mobile device is detected in movement;

Whether detection user's sight is concentrated on the mobile device.

It is described the mobile device road surface ahead information is detected in setting range to include in such scheme:

Detect the mobile device and horizontal direction angle difference;

According to the mobile device and horizontal direction angle difference and default first angle value setting second angle value, and Ultrasonic ranging is carried out to road surface ahead according to the second angle value;

The first distance value that the ultrasonic ranging successively obtains twice is compared with second distance value, judges front road Whether face is flat.

It is described to be set according to the mobile device and horizontal direction angle difference and default first angle value in such scheme Determining second angle value includes:

The directed line segment and water of the ultrasonic wave transmitting position of the mobile device are pointed to by the lower edge of the mobile device Flat front angle is timing, and the second angle value is set as into the first angle value and the mobile device and the level The difference of orientation angle difference;

The directed line segment and water of the ultrasonic wave transmitting position of the mobile device are pointed to by the lower edge of the mobile device When flat front angle is negative, the second angle value is set as the first angle value and the mobile device and the level Orientation angle difference sum.

In such scheme, first distance value that the ultrasonic ranging is successively obtained twice and second distance value phase Compare, judge road surface ahead it is whether flat including:

The second distance value is less than first distance value, and the second distance value and the difference of first distance value When value is more than default distance threshold, it is raised to judge that road surface ahead occurs;

The second distance value is more than first distance value, and the second distance value and the difference of first distance value When value is more than the default distance threshold, judge that the road surface ahead is recessed;

The second distance value is equal to first distance value or the second distance value and first distance value When difference is less than the default distance threshold, judge that the road surface ahead is flat.

In such scheme, mode that the obstacle is reminded include voice messaging, text information, one kind in image information or The a variety of combination of person.

The embodiments of the invention provide a kind of mobile device, the mobile device includes:

Information of road surface detection module, for when determination mobile device is in mobile status and determines that user's sight concentrates on When on the mobile device, the mobile device road surface ahead information is detected in setting range;

Obstacle prompting module, during for determining to need to remind according to the road surface ahead information, generating and sending obstacle and carry Awake signal, and obstacle prompting is carried out according to the obstacle alerting signal.

In such scheme, the mobile device also includes:

Velocity measuring module, for when the display screen of the mobile device is active, detecting the movement and setting For whether in movement;

Line-of-sight detection module, for detecting whether user's sight concentrates on the mobile device.

In such scheme, the information of road surface detection module includes:

Angle detecting module, for detecting the mobile device and horizontal direction angle difference;

Ultrasonic distance measuring module, for according to the mobile device and horizontal direction angle difference and default first angle Value setting second angle value, and ultrasonic ranging is carried out to road surface ahead according to the second angle value;

Analysis and processing module, for the first distance value and second distance value for successively obtaining the ultrasonic ranging twice Compare, judge whether road surface ahead is flat.

In such scheme, the ultrasonic distance measuring module includes the second angle value degree setting module, for being set by the movement It is timing that standby lower edge, which points to the directed line segment of the ultrasonic wave transmitting position of the mobile device and horizontal front angle, by institute State second angle value and be set as the first angle value and the difference of the mobile device and the horizontal direction angle difference;

The directed line segment and water of the ultrasonic wave transmitting position of the mobile device are pointed to by the lower edge of the mobile device When flat front angle is negative, the second angle value is set as the first angle value and the mobile device and the level Orientation angle difference sum.

In such scheme, the analysis and processing module includes:

Judge module, for being less than first distance value, and the second distance value and institute when the second distance value When stating the difference of the first distance value and being more than default distance threshold, it is raised to judge that road surface ahead occurs;

When the second distance value is more than first distance value, and the second distance value and first distance value When difference is more than the default distance threshold, judge that the road surface ahead is recessed;

When the second distance value is equal to the difference of first distance value, the second distance value and first distance value When value is less than the default distance threshold, judge that the road surface ahead is flat.

In such scheme, the mode that the obstacle is reminded includes one kind in voice messaging, text information, image information Or a variety of combination.

Obstacle based reminding method and mobile device provided by the present invention, when it is determined that mobile device is in mobile status and determination When user's sight is concentrated on the mobile device, the mobile device road surface ahead information is detected in setting range;According to When the road surface ahead information determines to need to remind, generate and send obstacle alerting signal, and according to the obstacle alerting signal Carry out obstacle prompting.In this way, can be it is determined that mobile device be in mobile status and determines that user's sight is concentrated on mobile device When, whether the road surface ahead for detecting mobile device in time is flat, if obstacle be present;And when obstacle occurs in road surface ahead, and When dyspoiesis alerting signal carry out obstacle prompting, so as to effectively reduce security incident, exclude potential safety hazard in time.

Brief description of the drawings

Fig. 1 is the method flow diagram that obstacle of the embodiment of the present invention is reminded;

Fig. 2 is the method flow diagram of the part steps of the obstacle based reminding method in the embodiment of the present invention;

Fig. 3 is the method flow diagram that whether detection user's sight is concentrated on mobile device in the embodiment of the present invention;

Fig. 4 is the method flow diagram that mobile device road surface ahead information is detected in the embodiment of the present invention;

Fig. 5 is a kind of second angle value calculating method schematic diagram in the embodiment of the present invention;

Fig. 6 is another second angle value calculating method schematic diagram in the embodiment of the present invention;

Fig. 7 is that mobile device of the embodiment of the present invention forms structural representation.

Embodiment

In order to more fully hereinafter understand the features of the present invention and technology contents, below in conjunction with the accompanying drawings to the reality of the present invention Now it is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for limiting the present invention.

The mobile device 500 being related in the present invention can be the equipment such as smart mobile phone, tablet personal computer, the mobile device 500 With display screen, user checks visual information by the display screen, and the visual information includes text, figure, video and its any Combination.

Fig. 1 is the method flow diagram that obstacle of the embodiment of the present invention is reminded.As shown in figure 1, obstacle provided by the invention is reminded Method comprises the following steps:

Step 100:When it is determined that mobile device 500 is in mobile status and determines that user's sight concentrates on mobile device 500 When upper, the road surface ahead information of mobile device 500 was detected in setting range.

In step 100, when meeting mobile device 500 in movement, and determine that user's sight is concentrated on mobile device 500 Condition when, that is, start in setting range detect the road surface ahead information of mobile device 500, with ensure in walking using movement The safety of the user of equipment 500.

Here, the setting range typically may be set to the front of mobile device 500 apart from 1.5 meters to 2 meters positions of mobile device Put place.

Wherein, before step 100 is performed, as shown in Fig. 2 obstacle based reminding method provided by the invention also includes following step Suddenly:

Step 100a:When the display screen of mobile device 500 is active, whether detection mobile device 500 is moving It is dynamic.

By the running status for the application program for reading mobile device 500, can detect the display screen of mobile device 500 is It is no to be active.It is active in display screen, when user can read the visual information of display screen output, then judges Whether user checks mobile device 500 in walking, can reduce unnecessary work.In a particular application, as long as detecting shifting The translational speed of dynamic equipment exceedes the threshold speed of setting, then it is considered that mobile device is in movement.

Specifically, detect mobile device 500 whether movement can use following two methods in any one:

Method one:Obtain the translational speed for the mobile device 500 that the tachogenerator in mobile device 500 detects.

Method two:Displacement of the mobile device 500 within preset time period is obtained, according to displacement and preset time Section calculates the translational speed of mobile device 500.

During using this method, it is necessary first to read by alignment systems such as GPRS global position systems or triones navigation systems The beginning position and last position of the mobile device 500 within preset time period is taken, and then calculates the distance between the two positions, in conjunction with The time span of preset time period calculates the translational speed of mobile device 500 in the preset time period.Because most of movements are set Standby 500 are built-in with the chip for possessing positioning function and located in connection application program, therefore need not moved using this method The new device of increase can be completed to detect work in dynamic equipment 500, can save the space of mobile device 500, reduce movement and set Standby 500 cost.

Step 100b:Whether detection user's sight is concentrated on mobile device 500.

After step 100a is finished, when it is determined that display screen is active, and mobile device 500 enters when mobile And need to perform step 100b, to detect whether the user of walking checks mobile phone.Specifically, as shown in figure 3, step 100b Including:

Step 100b1:Obtain image.

Typically, image is completed using the front camera of mobile device 500 and obtains work, and in real time deposit the image of acquisition Store up in mobile device 500.

Step 100b2:Graphical analysis is carried out to image, judges human eye whether is included in image, and people is included in image At the moment judge whether user's sight is concentrated on mobile device 500 based on eyeball tracking technology.

The step is analyzed the image of acquisition first, determines whether include people in image by image processing techniques Eye;When image includes human eye, state and change by the eyeball that catches and track user parse that user is current to be watched attentively Direction.Again by the current direction of gaze of user and the visual line of sight of the display interface determined by the shooting direction of front camera Compare, can determine whether user's sight is concentrated on mobile device 500.

Specifically, as shown in figure 4, in step 100, detection mobile device road surface ahead information includes in setting range Following steps:

Step 110:Detect mobile device 500 and horizontal direction angle difference.

The angle difference can be obtained by nine axle sensors in mobile device 500, the sensor can obtain it is horizontal and The change of vertical direction angle.

Here, the value of mobile device and the differential seat angle of horizontal direction 505 is X1, as shown in Figure 5;Mobile device and level side To the value of differential seat angle 506 be X2, as shown in Figure 6.

Step 120:Second jiao is set according to mobile device 500 and horizontal direction angle difference and default first angle value Angle value, and ultrasonic ranging is carried out to road surface ahead according to second angle value;

Here, shown in reference picture 5 and Fig. 6, the default first angle value X of first angle 5040It is perpendicular for mobile device 500 During straight placement, the angle of the ultrasonic wave direction of the launch and horizontal direction;Second angle 507 is the ultrasonic wave direction of the launch and mobile device 500 angle;Second angle 508 is the ultrasonic wave direction of the launch and the angle of mobile device 500.

Preset first angle value, according to mobile device and horizontal direction angle difference and the setting of default first angle value the Two angle values, mobile device 500 can be ensured when vertical direction has certain position change in moving process in mobile device 500 It is parallel to the ultrasonic wave direction of road surface ahead transmitting, reduce the measurement error to road surface ahead information.

Wherein, in step 120, set according to mobile device 500 and horizontal direction angle difference and default first angle value The method for determining second angle value is:

The directed line segment and level of the ultrasonic wave transmitting position of mobile device 500 are pointed to by the lower edge of mobile device 500 Front angle is timing, by second angle value be set as first angle value and mobile device 500 and horizontal direction angle difference it Difference;

The directed line segment and level of the ultrasonic wave transmitting position of mobile device 500 are pointed to by the lower edge of mobile device 500 When front angle is negative, by second angle value be set as first angle value and mobile device 500 and horizontal direction angle difference it With.

In the situation shown in Fig. 5, the ultrasonic wave of mobile device 500 launches position in the vertical direction compared with mobile device 500 lower edge is high, and therefore, second angle value is X0-X1

In the situation shown in Fig. 6, the ultrasonic wave of mobile device 500 launches position in the vertical direction compared with mobile device 500 lower edge is low, and therefore, second angle value is X0+X2

In this place, the lower edge of mobile device 500 refers to the mobile device 500 below sight when user checks display screen End.

Step 130:The first distance value that ultrasonic ranging successively obtains twice is compared with second distance value, before judgement Whether square road surface is flat.

Specifically, in step 130, the first distance value and second distance value phase ultrasonic ranging successively obtained twice Compare, judge road surface ahead it is whether flat including:

It is less than the first distance value in second distance value, and second distance value and the difference of the first distance value are more than default During distance threshold, it is raised to judge that road surface ahead occurs;

It is more than the first distance value in second distance value, and second distance value and the difference of the first distance value are more than default During distance threshold, judge that road surface ahead is recessed;

It is equal to the first distance value or second distance value and the difference of the first distance value less than default in second distance value During distance threshold, judge that road surface ahead is flat.

Wherein, ultrasonic wave transmitting position and the ground gathered in real time when judging whether road surface ahead is flat, during second distance value The distance value in face, the first distance value are the distance values that last ultrasonic ranging obtains.The measuring method has real-time, can have Effect obtains road surface ahead situation.

As shown in Figure 5 or Figure 6, when mobile device 500 moves forwards along the moving direction shown in arrow, movement is set Standby to launch ultrasonic ranging to road surface 502 along the ultrasonic wave direction of the launch 503, the barrier 501 on road surface to be mapped to thereon And the path for being reflected back the ultrasonic wave of mobile device shortens, so as to detect road surface ahead projection.

Default distance threshold can avoid when raised either depression by a small margin occurs in road surface ahead or due to moving Dynamic moving up and down by a small margin for equipment 500 makes measurement result error mistiming report surface conditions be present, and the user of mobile device 500 is made Into unnecessary interference.

Step 200:According to road surface ahead information dyspoiesis alerting signal, and obstacle is carried out according to obstacle alerting signal and carried Wake up.

Specifically, when projection occurs in road surface ahead or road surface ahead is recessed, dyspoiesis alerting signal, and root Obstacle prompting is carried out according to obstacle alerting signal.When road surface ahead is flat, then any action is not performed and continues to detect road surface ahead Information.

Specifically, the mode that obstacle is reminded is included by a kind of or more in voice messaging, text information, image information The combination of kind.

For example, reported in the microphone of mobile device 500 to remind user;Or in the aobvious of mobile device 500 Shown in display screen, to remind user;Or the figure corresponding with alerting signal set in advance is shown in display screen Piece, to remind user.

Determination mobile device provided by the present invention of working as is in mobile status and determines that user's sight concentrates on the movement When in equipment, the mobile device road surface ahead information is detected in setting range;Need are determined according to the road surface ahead information When reminding, generate and send obstacle alerting signal, and obstacle prompting is carried out according to the obstacle alerting signal.In this way, can be When determining that mobile device is in mobile status and determines that user's sight is concentrated on mobile device, before detecting mobile device in time Whether square road surface is flat, if obstacle be present;And when obstacle occurs in road surface ahead, timely dyspoiesis alerting signal is hindered Hinder prompting, so as to effectively reduce security incident, exclude potential safety hazard in time.

As shown in fig. 7, the present invention provides a kind of mobile device 500, including:

Information of road surface detection module 800, for when determination mobile device 500 is in mobile status and determines user's sight collection In when on mobile device 500, in setting range detect the road surface ahead information of mobile device 500.

In addition, mobile device 500 also includes velocity measuring module 600, for swashing when the display screen of mobile device 500 is in During state living, whether detection mobile device 500 is in movement.

Mobile device 500 can be detected movement and be set by the running status for the application program for reading mobile device 500 Whether standby 500 display screen is active.It is active in display screen, user can read display screen output During visual information, then judge whether user checks mobile device 500 in walking, unnecessary work can be reduced.Specifically should In, as long as detecting that the translational speed of mobile device exceedes the threshold speed of setting, then it is considered that mobile device is in movement.

Velocity measuring module 600 can directly obtain the mobile device that the tachogenerator in mobile device 500 detects 500 translational speed;Can also be by obtaining displacement of the mobile device 500 within preset time period, according to displacement And preset time period calculates the translational speed of mobile device 500.

During using method below, it is necessary first to pass through the positioning such as GPRS global position systems or triones navigation system system System reads the beginning position and last position of the mobile device 500 within preset time period, and then calculates the distance between the two positions, then The translational speed of mobile device 500 in the preset time period is calculated with reference to the time span of preset time period.Moved due to most of Dynamic equipment 500 is built-in with the chip for possessing positioning function and positioning application program, therefore need not moved using this method The new device of increase can be completed to detect work in dynamic equipment 500, can save the space of mobile device 500, reduce movement and set Standby 500 cost.

Line-of-sight detection module 700, for detecting whether user's sight concentrates on mobile device 500.

When it is determined that display screen is active, and mobile device 500 needs to pass through line-of-sight detection in next step when mobile Whether the user that module 700 detects walking checks mobile phone.

As shown in fig. 7, line-of-sight detection module 700 specifically includes:

Photographing module 701, for obtaining image.

The general front camera using mobile device 500 completes image and obtains work, and in real time deposits the image of acquisition Store up in mobile device 500.

Image processing module 702, for carrying out graphical analysis to image, judge whether include human eye in image, and scheming Judge whether user's sight is concentrated on mobile device 500 based on eyeball tracking technology when including human eye as in.

Image processing module 702 is true by image processing techniques at work first to analyzing the image of acquisition Determine whether include human eye in image,;When image includes human eye, state and change by the eyeball that catches and track user, And then parse the current direction of gaze of user.Again by the current direction of gaze of user and the shooting direction by front camera The visual line of sight of the display interface of determination compares, and can determine whether user's sight is concentrated on mobile device 500.

Specifically, information of road surface detection module 800 includes:

Angle detecting module 810, for detecting mobile device 500 and horizontal direction angle difference.

The angle difference can be obtained by nine axle sensors in mobile device 500, the sensor can obtain it is horizontal and The change of vertical direction angle.

Here, the value of mobile device and the differential seat angle of horizontal direction 505 is X1, as shown in Figure 5;Mobile device and level side To the value of differential seat angle 506 be X2, as shown in Figure 6.

Ultrasonic distance measuring module 820, for according to mobile device 500 and horizontal direction angle difference and default first jiao Angle value sets second angle value, and carries out ultrasonic ranging to road surface ahead according to second angle value;

Here, shown in reference picture 5 and Fig. 6, default first angle value X0When being placed vertically for mobile device 500, ultrasound The angle of the ripple direction of the launch and horizontal direction;Second angle 507 is the ultrasonic wave direction of the launch and the angle of mobile device 500;The Two angles 508 are the ultrasonic wave direction of the launch and the angle of mobile device 500.

Preset first angle value, set according to mobile device 500 and horizontal direction angle difference and default first angle value Determine second angle value, mobile set can be ensured when vertical direction has certain position change in moving process in mobile device 500 The ultrasonic wave direction of standby 500 pairs of road surface aheads transmitting is parallel, reduces the measurement error to road surface ahead information.

Ultrasonic distance measuring module 820 further comprises the second angle value degree setting module, for by the following of mobile device 500 It is timing that edge, which points to the directed line segment of the ultrasonic wave transmitting position of mobile device 500 and horizontal front angle, by second angle value It is set as first angle value and the difference of mobile device 500 and horizontal direction angle difference;

Or by mobile device 500 lower edge point to mobile device 500 ultrasonic wave launch position directed line segment with When horizontal front angle is negative, second angle value is set as first angle value and mobile device 500 and horizontal direction differential seat angle It is worth sum.

In the situation shown in Fig. 5, the ultrasonic wave of mobile device 500 launches position in the vertical direction compared with mobile device 500 lower edge is high, and therefore, second angle value is X0-X1

In the situation shown in Fig. 6, the ultrasonic wave of mobile device 500 launches position in the vertical direction compared with mobile device 500 lower edge is low, and therefore, second angle value is X0+X2

In this place, the lower edge of mobile device 500 refers to the mobile device 500 below sight when user checks display screen End.

Analysis and processing module 830, for the first distance value and second distance value for successively obtaining ultrasonic ranging twice Compare, determine whether road surface ahead is flat and judge whether road surface ahead is flat.

Specifically, analysis and processing module 830 is specifically used for according to the size of the first distance value and second distance value and pre- If distance threshold judge whether road surface ahead flat, be specially:

It is less than the first distance value in second distance value, and second distance value and the difference of the first distance value are more than default During distance threshold, it is raised to judge that road surface ahead occurs;

It is more than the first distance value in second distance value, and second distance value and the difference of the first distance value are more than default During distance threshold, judge that road surface ahead is recessed;

The difference for being equal to the first distance value, second distance value and the first distance value in second distance value is less than default distance During threshold value, judge that road surface ahead is flat.

Here, the first distance value and second distance value that ultrasonic ranging obtains can be stored as needed.

The ultrasonic wave transmitting position that is gathered in real time when judging whether road surface ahead flat, during second distance value and ground away from From value, the first distance value is the distance value that last ultrasonic ranging obtains.The measuring method has real-time, can effectively obtain Road surface ahead situation.

As shown in Figure 5 or Figure 6, when mobile device 500 launches ultrasonic wave to road surface 502 along the ultrasonic wave direction of the launch 503 During ranging, the path that the barrier 501 on road surface to be mapped to thereon and be reflected back the ultrasonic wave of mobile device shortens, so as to examine Measure road surface ahead projection.

Default distance threshold can avoid when road surface ahead by a small margin raised is either recessed or because movement is set Standby 500 move up and down by a small margin makes measurement result error mistiming report surface conditions be present, and the user of mobile device 500 is caused not Necessary interference.

As shown in fig. 7, mobile device 500 also includes obstacle prompting module 900, for determining need according to road surface ahead information When reminding, generate and send obstacle alerting signal, and obstacle prompting is carried out according to obstacle alerting signal.

Obstacle prompting module 900 is specifically used for, and when projection occurs in road surface ahead or road surface ahead is recessed, sends Obstacle alerting signal, and obstacle prompting is carried out according to obstacle alerting signal.When road surface ahead is flat, then any action is not performed Continue to detect road surface ahead information.

The mode that obstacle is reminded includes passing through one or more kinds of groups in voice messaging, text information and image information Close and carry out obstacle prompting.

In actual applications, above-mentioned velocity measuring module 600 can be realized by velocity sensor, and photographing module 710 can be with Realized by camera, angle detecting module 810 can be realized by position sensor, and ultrasonic distance measuring module 820 can be by ultrasound Ripple transceiver realizes that image processing module 720, analysis and processing module 830 and obstacle prompting module 900 can be by moving Central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) or the field programmable gate array of equipment Etc. (FPGA) realize.

For example, reported in the microphone of mobile device 500 to remind user;Or in the aobvious of mobile device 500 Shown in display screen, to remind user;Or the figure corresponding with alerting signal set in advance is shown in display screen Piece, to remind user.

Mobile device 500 provided by the present invention includes being used for when determining that mobile device 500 be in mobile status and true When determining user's sight and concentrating on mobile device 500, the road surface of the road surface ahead information of mobile device 500 is detected in setting range Information detecting module 800 and for according to road surface ahead information determine need remind when, generate and send obstacle alerting signal, and The obstacle prompting module 900 of obstacle prompting is carried out according to obstacle alerting signal.In this way, can be it is determined that mobile device 500 be in shifting Dynamic state and when determining that user's sight is concentrated on mobile device 500, whether the road surface ahead for detecting mobile device 500 in time puts down It is smooth, if obstacle to be present;And when obstacle occurs in road surface ahead, timely dyspoiesis alerting signal carries out obstacle prompting, so as to Security incident effectively is reduced, excludes potential safety hazard in time.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage The form for the computer program product that medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.).

The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram The step of function of being specified in one square frame or multiple square frames.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (12)

1. a kind of obstacle based reminding method, it is characterised in that the obstacle based reminding method includes:
When it is determined that mobile device be in mobile status and determine user's sight concentrate on the mobile device when, in setting range The interior detection mobile device road surface ahead information;
When determining to need to remind according to the road surface ahead information, generate and send obstacle alerting signal, and according to the obstacle Alerting signal carries out obstacle prompting.
2. obstacle based reminding method according to claim 1, it is characterised in that the determination mobile device is in mobile status And before determining that user's sight is concentrated on the mobile device, the obstacle based reminding method also includes:
When the display screen of the mobile device is active, whether the mobile device is detected in movement;
Whether detection user's sight is concentrated on the mobile device.
3. obstacle based reminding method according to claim 1 or 2, it is characterised in that it is described in setting range detection described in Mobile device road surface ahead information includes:
Detect the mobile device and horizontal direction angle difference;
According to the mobile device and horizontal direction angle difference and default first angle value setting second angle value, and according to The second angle value carries out ultrasonic ranging to road surface ahead;
The first distance value that the ultrasonic ranging successively obtains twice is compared with second distance value, judges that road surface ahead is It is no flat.
4. obstacle based reminding method according to claim 3, it is characterised in that described according to the mobile device and level side Include to angle difference and default first angle value setting second angle value:
Before directed line segment and level that the ultrasonic wave transmitting position of the mobile device is pointed to by the lower edge of the mobile device Square angle is timing, and the second angle value is set as into the first angle value and the mobile device and the horizontal direction The difference of angle difference;
Before directed line segment and level that the ultrasonic wave transmitting position of the mobile device is pointed to by the lower edge of the mobile device When square angle is negative, the second angle value is set as the first angle value and the mobile device and the horizontal direction Angle difference sum.
5. obstacle based reminding method according to claim 3, it is characterised in that it is described by the ultrasonic ranging successively twice Obtain the first distance value compared with second distance value, judge road surface ahead it is whether flat including:
The second distance value is less than first distance value, and the second distance value and the difference of first distance value are big When default distance threshold, it is raised to judge that road surface ahead occurs;
The second distance value is more than first distance value, and the second distance value and the difference of first distance value are big When the default distance threshold, judge that the road surface ahead is recessed;
The second distance value is equal to first distance value or the second distance value and the difference of first distance value During less than the default distance threshold, judge that the road surface ahead is flat.
6. obstacle based reminding method according to claim 5, it is characterised in that the mode that the obstacle is reminded is believed including voice One or more kinds of combinations in breath, text information, image information.
7. a kind of mobile device, it is characterised in that the mobile device includes:
Information of road surface detection module, for when determination mobile device is in mobile status and determines that user's sight concentrates on the shifting When in dynamic equipment, the mobile device road surface ahead information is detected in setting range;
Obstacle prompting module, for according to the road surface ahead information determine need remind when, generate and send obstacle remind letter Number, and obstacle prompting is carried out according to the obstacle alerting signal.
8. mobile device according to claim 7, it is characterised in that the mobile device also includes:
Velocity measuring module, for when the display screen of the mobile device is active, detecting the mobile device to be It is no in movement;
Line-of-sight detection module, for detecting whether user's sight concentrates on the mobile device.
9. the mobile device according to claim 7 or 8, it is characterised in that the information of road surface detection module includes:
Angle detecting module, for detecting the mobile device and horizontal direction angle difference;
Ultrasonic distance measuring module, for being set according to the mobile device and horizontal direction angle difference and default first angle value Determine second angle value, and ultrasonic ranging is carried out to road surface ahead according to the second angle value;
Analysis and processing module, the first distance value for the ultrasonic ranging successively to be obtained twice are compared with second distance value Compared with judging whether road surface ahead is flat.
10. mobile device according to claim 9, it is characterised in that the ultrasonic distance measuring module includes the second angle value Setting module is spent, the ultrasonic wave for pointing to the mobile device by the lower edge of the mobile device launches the directed line of position Section is timing with horizontal front angle, and the second angle value is set as into the first angle value and the mobile device and institute State the difference of horizontal direction angle difference;
Before directed line segment and level that the ultrasonic wave transmitting position of the mobile device is pointed to by the lower edge of the mobile device When square angle is negative, the second angle value is set as the first angle value and the mobile device and the horizontal direction Angle difference sum.
11. mobile device according to claim 10, it is characterised in that the analysis and processing module includes:
Judge module, for being less than first distance value, and the second distance value and described when the second distance value When the difference of one distance value is more than default distance threshold, it is raised to judge that road surface ahead occurs;
When the second distance value is more than first distance value, and the second distance value and the difference of first distance value During more than the default distance threshold, judge that the road surface ahead is recessed;
The difference for being equal to first distance value, the second distance value and first distance value when the second distance value is small When the default distance threshold, judge that the road surface ahead is flat.
12. mobile device according to claim 11, it is characterised in that the mode that the obstacle is reminded is believed including voice One or more kinds of combinations in breath, text information, image information.
CN201610682463.XA 2016-08-17 2016-08-17 A kind of obstacle based reminding method and mobile device CN107770359A (en)

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