CN104335260A - Infrared distance measurement collision avoidance method and terminal - Google Patents
Infrared distance measurement collision avoidance method and terminal Download PDFInfo
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- CN104335260A CN104335260A CN201480001272.1A CN201480001272A CN104335260A CN 104335260 A CN104335260 A CN 104335260A CN 201480001272 A CN201480001272 A CN 201480001272A CN 104335260 A CN104335260 A CN 104335260A
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- infrared distance
- user
- terminal
- distance measurement
- measurement module
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
An infrared distance measurement collision avoidance method and terminal. The method comprises: turning on an infrared distance measurement module when the moving speed of a user of a hand-held terminal is detected to be higher than a set threshold value and the setting application on the terminal is turned on; adjusting the infrared distance measurement module according to a current inclination angle of the terminal relative to the horizontal position, so as to enable the axis of the detection direction of the infrared distance measurement module to be parallel to the ground; controlling the infrared distance measurement module to detect the distance between an obstacle around the user and the user and/or the moving speed of the obstacle; outputting an alarm prompt according to the distance, and the moving speeds of the user and/or the obstacle. The invention also discloses the corresponding terminal. The infrared distance measurement collision avoidance method and terminal disclosed by embodiments of the invention have good adaptive capacity to environment, can adjust the detection direction with self-adaption, thus reduces, to the maximum extent, potential safety risk for users caused by using the hand-held terminal when walking, and prevents users from accidental injury.
Description
Technical field
The present invention relates to intelligent terminal technical field, particularly relate to a kind of infrared distance measurement avoiding collision and terminal.
Background technology
Along with popularizing rapidly of intelligent terminal, increasing to the dependence of intelligent terminal in people's daily life.People cannot avoid walking, when going across the road the situation that occurs receiving calls or browse mobile phone or dull and stereotyped information.Under these scenes, because the notice of people mainly concentrates in the information content of call or intelligent terminal, there is very large potential safety hazard.In order to reduce this type of risk as far as possible, the collision prevention function of intelligent terminal is just put in face of us.
At present, infrared distance measurement technology is ripe, and intelligent terminal such as smart mobile phone has collision prevention function technology, and it realizes principle is utilize the post-positioned pick-up head of existing mobile phone to carry out image recognition and process, judges the environment around user.When detected object near time, call user's attention safety.This technology has following shortcoming: existing mobile phone camera position is fixed, and cannot carry out Automatic adjusument according to User Status, and what camera covered is limited in scope; And mobile phone visible image capturing head, dark or night weak effect, effectively cannot realize collision prevention function.
Therefore, need to provide a kind of ranging for preventing collision mode with the terminal of good adaptive capacity to environment, the potential security risk that user uses handheld terminal to bring when walking can be reduced, avoid user to be subject to unexpected injury.
Summary of the invention
Embodiments provide a kind of infrared distance measurement avoiding collision and terminal, there is good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to be subject to unexpected injury.
On the one hand, provide a kind of infrared distance measurement avoiding collision, comprising:
When the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, start the infrared distance measurement module in described terminal;
Adjust described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, make the detection direction axis parallel of described infrared distance measurement module in ground;
Control the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier;
According to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
In the implementation that the first is possible, the described angle of inclination according to the current relative horizontal position of described terminal adjusts described infrared distance measurement module, and make the detection direction axis parallel of described infrared distance measurement module before ground, described method also comprises:
Obtain the accekeration when current acceleration value of described terminal and described terminal are horizontal;
Accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second is possible, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
In conjunction with first aspect or the first possible implementation of first aspect or the possible implementation of the second of first aspect, in the implementation that the third is possible, the described translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting, comprising:
According to the translational speed of described user and/or described barrier, obtain the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
When described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
In conjunction with first aspect, in the 5th kind of possible implementation, described method also comprises:
When the translational speed of described user is less than setting threshold value and/or described setting application closedown, close described infrared distance measurement module; Or
Receive user when closing the instruction of described infrared distance measurement module, close described infrared distance measurement module.
Second aspect, provides a kind of terminal, comprising:
Start unit, for be greater than when the translational speed of user handheld terminal being detected setting threshold value and in described terminal setting application open time, start the infrared distance measurement module in described terminal;
Adjustment unit, for adjusting described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground;
Control module, detects the translational speed of distance between barrier around described user and described user and/or described barrier for controlling described infrared distance measurement module;
First output unit, for the translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting.
In the implementation that the first is possible, described terminal also comprises:
First acquiring unit, accekeration when current acceleration value and described terminal for obtaining described terminal are horizontal;
Second acquisition unit, accekeration during for being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second is possible, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
In conjunction with second aspect or the first possible implementation of second aspect or the possible implementation of the second of second aspect, in the implementation that the third is possible, described first output unit comprises:
3rd acquiring unit, for the translational speed according to described user and/or described barrier, obtains the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
Second output unit, during for reaching the alarm threshold value distance corresponding with described relative moving speed when described distance, to described user's output alarm prompting.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
In conjunction with first aspect, in the 5th kind of possible implementation, described terminal also comprises:
Closing unit, during for being less than setting threshold value and/or described setting application closedown when the translational speed of described user, closes described infrared distance measurement module; Or
When described closing unit closes the instruction of described infrared distance measurement module for receiving user, close described infrared distance measurement module.
The third aspect, provides a kind of terminal, comprises input media, output unit, storer and processor;
Wherein, described processor is for performing following steps:
When the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, start the infrared distance measurement module in described terminal;
Adjust described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, make the detection direction axis parallel of described infrared distance measurement module in ground;
Control the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier;
According to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
In the implementation that the first is possible, described processor performs the described angle of inclination according to the current relative horizontal position of described terminal and adjusts described infrared distance measurement module, make the detection direction axis parallel of described infrared distance measurement module before the step on ground, also perform following steps:
Obtain the accekeration when current acceleration value of described terminal and described terminal are horizontal;
Accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
In conjunction with the first possible implementation of the third aspect or the third aspect, in the implementation that the second is possible, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
In conjunction with the third aspect or the first possible implementation of the third aspect or the possible implementation of the second of the third aspect, in the implementation that the third is possible, described processor performs the described translational speed according to described distance and described user and/or described barrier, to the step of described user's output alarm prompting, comprising:
According to the translational speed of described user and/or described barrier, obtain the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
When described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
In conjunction with the third possible implementation of the third aspect, in the 4th kind of possible implementation, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
In conjunction with the third aspect, in the 5th kind of possible implementation, described processor also performs following steps:
When the translational speed of described user is less than setting threshold value and/or described setting application closedown, close described infrared distance measurement module; Or
Receive user when closing the instruction of described infrared distance measurement module, close described infrared distance measurement module.
Visible, a kind of infrared distance measurement avoiding collision adopting the embodiment of the present invention to provide and terminal, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The process flow diagram of a kind of infrared distance measurement avoiding collision that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the crashproof schematic diagram of infrared distance measurement;
The process flow diagram of the another kind of infrared distance measurement avoiding collision that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the structural representation of the terminal of example;
Fig. 5 is infrared distance sensor array building form schematic diagram;
Fig. 6 is the adjustment schematic diagram of infrared distance sensor array when terminal is from level to inclination;
The structural representation of a kind of terminal that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the another kind of terminal that Fig. 8 provides for the embodiment of the present invention;
The structural representation of another terminal that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, be the process flow diagram of a kind of infrared distance measurement avoiding collision that the embodiment of the present invention provides, the method comprises the following steps:
Step S101, when the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, starts the infrared distance measurement module in described terminal.
The embodiment of the present invention arranges infrared distance measurement module in terminal, the crashproof schematic diagram of infrared distance measurement as shown in Figure 2, the user of handheld terminal often can open some application when walking, the notice of user mainly concentrates in these application and such as receives calls, browse webpage etc., do not notice the wagon flow of periphery, the stream of people etc., there is very large potential safety hazard, the infrared distance measurement module that the embodiment of the present invention is arranged in terminal can be infrared distance sensor array, this infrared distance measurement module can at any environment such as insufficient light, preceding object thing is sensed in the situations such as inclement weather.
The infrared distance measurement module started in terminal has two conditions: user is in the setting application that mobile status and user open terminal, therefore, in this step, whether the translational speed whether detection user is in mobile status and user is greater than setting threshold value, and whether the setting application in sense terminals opens, here setting application refers to that some need the application of user's visual cognitive ability in these application, such as receive calls, open game, browse webpage or viewing video etc., the application that user starts can be recorded to by terminal operating system.When two testing conditions meet simultaneously, automatically start this infrared distance measurement module.
Step S102, adjusts described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground.
After terminal being opened setting application, user's visual cognitive ability is applied in this setting, normally concentrates on terminal display screen, and terminal can tilt to make terminal display screen user oriented by user, can obtain the angle of inclination of the current relative horizontal position of terminal.
According to this angle of inclination adjustment infrared distance measurement module: starting the original state of infrared distance measurement module, now terminal is generally horizontal, and infrared distance measurement module is also be in a straight line with terminal, is namely horizontal; When terminal tilts by user, accurately preceding object thing is detected all sidedly in order to make infrared distance measurement module, need to make the detection direction axis parallel of infrared distance measurement module in ground, therefore, according to this angle of inclination adjustment infrared distance measurement module, drive infrared distance measurement module to rotate, make the detection direction axis parallel of infrared distance measurement module in ground.
Step S103, controls the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier.
The distance of infrared distance measurement module detecting obstacles thing and user can be controlled, adopt infra-red detection distance can adopt existing technology, do not repeat them here.
Barrier may be fixing, also may be mobile, and infrared distance measurement module can be adopted to detect the translational speed of moving obstacle, and this also can adopt existing technology, does not repeat them here.
Step S104, according to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
According to the distance between user and barrier and the translational speed of user or the relative moving speed between user and barrier, can calculate in addition how long apart from clobber, certain distance threshold can being set, when arriving this distance threshold, pointing out to user's output alarm.
Certainly, also setting-up time threshold value time of clobber can be weighed.
Visible, adopt a kind of infrared distance measurement avoiding collision that the embodiment of the present invention provides, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury.
Refer to Fig. 3, be the process flow diagram of the another kind of infrared distance measurement avoiding collision that the embodiment of the present invention provides, the method comprises the following steps:
Step S201, when the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, starts the infrared distance measurement module in described terminal.
The embodiment of the present invention arranges infrared distance measurement module in terminal, as shown in Figure 4, for the structural representation of the terminal of example, this handheld terminal (1) comprises infrared distance measurement module (2), display screen (3), loudspeaker (4) can also be comprised, wherein, the infrared distance measurement module (2) that dotted line frame goes out comprises again infrared distance sensor array (5) and CD-ROM drive motor (6).As shown in Figure 5, be infrared distance sensor array building form schematic diagram, the investigative range of infrared distance sensor array is 60 degree of tapers.The center of sensor (51) and the half elliptic minor axis of infrared distance sensor array overlap, and sensor (52) is symmetrical with sensor (53) relative minor axis, and the angle theta of its center and minor axis is 60 degree.Such sensor array can cover the sector region of 180 degree, the environment around when can cover user's handheld terminal under the effect of CD-ROM drive motor.Wherein the center of CD-ROM drive motor and the half elliptic major axis of module overlap.Certainly, infrared distance measurement module can also adopt other infrared distance sensor array building form, is only example at this.
The infrared distance measurement module started in terminal has two conditions: user is in the setting application that mobile status and user open terminal, therefore, in this step, whether the translational speed whether detection user is in mobile status and user is greater than setting threshold value, and whether the setting application in sense terminals opens.The translational speed of user can be measured by the acceleration transducer in terminal.Here setting application refers to that some need the application of user's visual cognitive ability in these application, and such as receive calls, open game, browse webpage or viewing video etc., the application that user starts can be recorded to by terminal operating system.When two testing conditions meet simultaneously, automatically start this infrared distance measurement module.
Step S202, obtains the accekeration when current acceleration value of described terminal and described terminal are horizontal.
Step S203, accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
Step S202-step S203 is the angle of inclination obtaining the current relative horizontal position of terminal.As shown in Figure 6, be the adjustment schematic diagram of infrared distance sensor array when terminal is from level to inclination, when end level is placed, acceleration transducer XYZ 3-axis acceleration value is X1, Y1 and Z1, and now infrared distance sensor array and terminal are consistent; When terminal tilts, acceleration transducer 3-axis acceleration value is X2, Y2 and Z2, can extrapolate the angle of inclination of terminal by 3-axis acceleration value difference value under calculating two states.
Step S204, adjusts described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground.
This angle of inclination is as the input value of infrared distance sensor array adjustment detection direction, and the angle of starter motor to infrared distance sensor array adjusts, and ensures that infrared distance sensor array can effectively detect.Infrared distance sensor detection direction axis parallel after adjustment is in ground.
Step S205, controls the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier.
Step S205 is identical with step S103 embodiment illustrated in fig. 1, does not repeat them here.
Step S206, according to the translational speed of described user and/or described barrier, obtains the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed.
Step S207, when described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
After infrared distance measurement module normally works, environment around real-time supervisory user, when sense the relative user's low speed of surrounding objects or higher speed close to time, handheld terminal passes through interface display image such as close to speed and the orientation of barrier, loudspeaker or vibrating motor call user's attention safety can also be passed through, to provide diversified alarm mode, improve the experience of user.For varying in size of the relative moving speed between user and barrier, different alarm threshold value distances can be set, to provide alarm to user in advance exactly.Such as when user runs into fixed object, 1m/s under for normal gait speed, we set alarm threshold value distance is 5m; When user runs into fair speed object proximity, if speed is 20m/s, we set alarm threshold value distance for 30m; Setting alarm threshold value distance when speed of moving body is between 1m/s to 20m/s is 15m.
Step S208, when the translational speed of described user is less than setting threshold value and/or described setting application closedown, closes described infrared distance measurement module.
Closedown for infrared distance sensor can be closed automatically by the setting of handheld terminal.The principle of automatic closedown is that handheld terminal acceleration transducer senses user's stop motion or handheld terminal when affecting the closing application program of user's notice, control CD-ROM drive motor and automatically close infrared distance sensor array, and its angle is returned to initial state.
Closedown for infrared distance sensor can also cancel alarming anticollision function by user, namely receives the instruction that user closes infrared distance measurement module, controls CD-ROM drive motor and closes infrared distance sensor array, and its angle is returned to initial state.
Visible, adopt a kind of infrared distance measurement avoiding collision that the embodiment of the present invention provides, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury; And different alarm threshold value distances can be set according to the relative moving speed between user and barrier, to provide alarm to user in advance exactly; And diversified alarm mode is provided, improve the experience of user.
Refer to Fig. 7, be the structural representation of a kind of terminal that the embodiment of the present invention provides, this terminal 1000 comprises:
Start unit 11, for be greater than when the translational speed of user handheld terminal being detected setting threshold value and in described terminal setting application open time, start the infrared distance measurement module in described terminal.
The embodiment of the present invention arranges infrared distance measurement module in terminal, the crashproof schematic diagram of infrared distance measurement as shown in Figure 2, the user of handheld terminal often can open some application when walking, the notice of user mainly concentrates in these application and such as receives calls, browse webpage etc., do not notice the wagon flow of periphery, the stream of people etc., there is very large potential safety hazard, the infrared distance measurement module that the embodiment of the present invention is arranged in terminal can be infrared distance sensor array, this infrared distance measurement module can at any environment such as insufficient light, preceding object thing is sensed in the situations such as inclement weather.
The start unit 11 infrared distance measurement module started in terminal has two conditions: user is in the setting application that mobile status and user open terminal, therefore, start unit 11 detects the translational speed whether user be in mobile status and user and whether is greater than setting threshold value, and whether the setting application in sense terminals opens, here setting application refers to that some need the application of user's visual cognitive ability in these application, such as receive calls, open game, browse webpage or viewing video etc., the application that user starts can be recorded to by terminal operating system.When two testing conditions meet simultaneously, start unit 11 starts this infrared distance measurement module automatically.
Adjustment unit 12, for adjusting described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground.
After terminal being opened setting application, user's visual cognitive ability is applied in this setting, normally concentrates on terminal display screen, and terminal can tilt to make terminal display screen user oriented by user, can obtain the angle of inclination of the current relative horizontal position of terminal.
Adjustment unit 12 is according to this angle of inclination adjustment infrared distance measurement module: starting the original state of infrared distance measurement module, now terminal is generally horizontal, and infrared distance measurement module is also be in a straight line with terminal, is namely horizontal; When terminal tilts by user, accurately preceding object thing is detected all sidedly in order to make infrared distance measurement module, need to make the detection direction axis parallel of infrared distance measurement module in ground, therefore, adjustment unit 12 is according to this angle of inclination adjustment infrared distance measurement module, drive infrared distance measurement module to rotate, make the detection direction axis parallel of infrared distance measurement module in ground.
Control module 13, detects the translational speed of distance between barrier around described user and described user and/or described barrier for controlling described infrared distance measurement module.
Control module 13 can control the distance of infrared distance measurement module detecting obstacles thing and user, adopts infra-red detection distance can adopt existing technology, does not repeat them here.
Barrier may be fixing, also may be mobile, and control module 13 can adopt infrared distance measurement module to detect the translational speed of moving obstacle, and this also can adopt existing technology, does not repeat them here.
First output unit 14, for the translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting.
According to the distance between user and barrier and the translational speed of user or the relative moving speed between user and barrier, can calculate in addition how long apart from clobber, certain distance threshold can be set, when arriving this distance threshold, the first output unit 14 is pointed out to user's output alarm.
Certainly, also setting-up time threshold value time of clobber can be weighed.
Visible, adopt a kind of terminal that the embodiment of the present invention provides, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury.
Refer to Fig. 8, be the structural representation of the another kind of terminal that the embodiment of the present invention provides, this terminal 2000 comprises:
Start unit 21, for be greater than when the translational speed of user handheld terminal being detected setting threshold value and in described terminal setting application open time, start the infrared distance measurement module in described terminal.
The embodiment of the present invention arranges infrared distance measurement module in terminal, as shown in Figure 4, for the structural representation of the terminal of example, this handheld terminal (1) comprises infrared distance measurement module (2), display screen (3), loudspeaker (4) can also be comprised, wherein, the infrared distance measurement module (2) that dotted line frame goes out comprises again infrared distance sensor array (5) and CD-ROM drive motor (6).As shown in Figure 5, be infrared distance sensor array building form schematic diagram, the investigative range of infrared distance sensor array is 60 degree of tapers.The center of sensor (51) and the half elliptic minor axis of infrared distance sensor array overlap, and sensor (52) is symmetrical with sensor (53) relative minor axis, and the angle theta of its center and minor axis is 60 degree.Such sensor array can cover the sector region of 180 degree, the environment around when can cover user's handheld terminal under the effect of CD-ROM drive motor.Wherein the center of CD-ROM drive motor and the half elliptic major axis of module overlap.Certainly, infrared distance measurement module can also adopt other infrared distance sensor array building form, is only example at this.
The start unit 21 infrared distance measurement module started in terminal has two conditions: user is in the setting application that mobile status and user open terminal, therefore, start unit 21 detects the translational speed whether user be in mobile status and user and whether is greater than setting threshold value, and whether the setting application in sense terminals opens.The translational speed of user can be measured by the acceleration transducer in terminal.Here setting application refers to that some need the application of user's visual cognitive ability in these application, and such as receive calls, open game, browse webpage or viewing video etc., the application that user starts can be recorded to by terminal operating system.When two testing conditions meet simultaneously, start unit 21 starts this infrared distance measurement module automatically.
First acquiring unit 22, accekeration when current acceleration value and described terminal for obtaining described terminal are horizontal.
Second acquisition unit 23, accekeration during for being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
As shown in Figure 6, be the adjustment schematic diagram of infrared distance sensor array when terminal is from level to inclination, when end level is placed, acceleration transducer XYZ 3-axis acceleration value is X1, Y1 and Z1, and now infrared distance sensor array and terminal are consistent; When terminal tilts, acceleration transducer 3-axis acceleration value is X2, Y2 and Z2, can extrapolate the angle of inclination of terminal by 3-axis acceleration value difference value under calculating two states.
Adjustment unit 24, for adjusting described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground.
This angle of inclination is as the input value of infrared distance sensor array adjustment detection direction, and the angle of adjustment unit 24 starter motor to infrared distance sensor array adjusts, and ensures that infrared distance sensor array can effectively detect.Infrared distance sensor detection direction axis parallel after adjustment is in ground.
Control module 25, detects the translational speed of distance between barrier around described user and described user and/or described barrier for controlling described infrared distance measurement module.
The function of control module 25 is identical with the function of control module 13 embodiment illustrated in fig. 7, does not repeat them here.
First output unit 26, for the translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting.
In the present embodiment, the first output unit 26 comprises the 3rd acquiring unit 261 and the second output unit 262.
3rd acquiring unit 261, for the translational speed according to described user and/or described barrier, obtains the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed.
Second output unit 262, during for reaching the alarm threshold value distance corresponding with described relative moving speed when described distance, to described user's output alarm prompting.
After infrared distance measurement module normally works, environment around real-time supervisory user, when sense the relative user's low speed of surrounding objects or higher speed close to time, handheld terminal passes through interface display image such as close to speed and the orientation of barrier, loudspeaker or vibrating motor call user's attention safety can also be passed through, to provide diversified alarm mode, improve the experience of user.For varying in size of the relative moving speed between user and barrier, different alarm threshold value distances can be set, to provide alarm to user in advance exactly.Such as when user runs into fixed object, 1m/s under for normal gait speed, we set alarm threshold value distance is 5m; When user runs into fair speed object proximity, if speed is 20m/s, we set alarm threshold value distance for 30m; Setting alarm threshold value distance when speed of moving body is between 1m/s to 20m/s is 15m.
Closing unit 27, during for being less than setting threshold value and/or described setting application closedown when the translational speed of described user, closes described infrared distance measurement module.
For the closedown of infrared distance sensor, closing unit 27 can be closed automatically by the setting of handheld terminal.The principle of automatic closedown is that handheld terminal acceleration transducer senses user's stop motion or handheld terminal when affecting the closing application program of user's notice, control CD-ROM drive motor and automatically close infrared distance sensor array, and its angle is returned to initial state.
Closing unit 27 can also cancel alarming anticollision function by user, namely receives the instruction that user closes infrared distance measurement module, controls CD-ROM drive motor and closes infrared distance sensor array, and its angle is returned to initial state.
Visible, adopt a kind of terminal that the embodiment of the present invention provides, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury; And different alarm threshold value distances can be set according to the relative moving speed between user and barrier, to provide alarm to user in advance exactly; And diversified alarm mode is provided, improve the experience of user.
Refer to Fig. 9, be the structural representation of another terminal that the embodiment of the present invention provides, this terminal 3000 comprises:
Processor 31, storer 32, input equipment 33, output device 34 and bus system 35, wherein:
The operation of processor 31 control terminal 3000, processor 31 can also be called CPU (central processing unit) (Central Processing Unit, CPU).Processor 31 may be a kind of integrated circuit (IC) chip, has the processing power of signal.Processor 31 can also be general processor, digital signal processor (Digital Signal Processing, DSP), special IC (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components.The processor etc. of general processor can be microprocessor or this processor also can be any routine.
Storer 32 can comprise ROM (read-only memory) and random access memory, and provides instruction and data to processor 31.A part for storer 32 can also comprise nonvolatile RAM (NVRAM).
Each assembly of terminal 3000 is coupled by bus system 35, this bus can be industry standard architecture (Industry Standard Architecture, ISA) bus, peripheral component interconnect (Peripheral Component Interconnect, PCI) bus or extended industry-standard architecture (Extended Industry Standard Architecture, EISA) bus etc.Described bus can be one or more physical circuit, can be divided into address bus, data bus, control bus etc. when being many physical circuits.In some other embodiment of the present invention, processor 31, storer 32 and input equipment 33, output device 34 also directly can be connected by communication line.
Input equipment 33 can be implemented as mouse, keyboard, microphone etc., and output device 34 can be implemented as display, audio frequency apparatus, video equipment.Certainly, input equipment 33 and output device 34 also can realize its function by an input-output device, are such as embodied as tangibly screen.
Wherein, processor 31 reads computer program in storer 32 in order to perform following steps:
When the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, start the infrared distance measurement module in described terminal;
Adjust described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, make the detection direction axis parallel of described infrared distance measurement module in ground;
Control the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier;
According to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
As a kind of embodiment, processor 31 performs the described angle of inclination according to the current relative horizontal position of described terminal and adjusts described infrared distance measurement module, make the detection direction axis parallel of described infrared distance measurement module before the step on ground, also perform following steps:
Obtain the accekeration when current acceleration value of described terminal and described terminal are horizontal;
Accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
As another kind of embodiment, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second, and third infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, and the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.Certainly, infrared distance measurement module can also adopt other infrared distance sensor array building form, is only example at this.
As another embodiment, processor 31 performs the described translational speed according to described distance and described user and/or described barrier, to the step of described user's output alarm prompting, comprising:
According to the translational speed of described user and/or described barrier, obtain the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
When described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
Wherein, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
As another embodiment, processor 31 also performs following steps:
When the translational speed of described user is less than setting threshold value and/or described setting application closedown, close described infrared distance measurement module; Or
Receive user when closing the instruction of described infrared distance measurement module, close described infrared distance measurement module.
The computer program comprised in the processor 31 that the embodiment of the present invention provides can also be embodied as start unit, adjustment unit, control module and the first output unit, and the function of four unit realizations with reference to described in previous embodiment, can not repeat them here.
Visible, adopt a kind of terminal that the embodiment of the present invention provides, the infrared distance measurement module adopted has good adaptive capacity to environment, the detection direction of infrared distance measurement module can be adjusted adaptively, reduce the potential security risk that user uses handheld terminal to bring when walking to greatest extent, avoid user to receive unexpected injury.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention can use hardware implementing, or firmware realizes, or their array mode realizes.When implemented in software, above-mentioned functions can be stored in computer-readable medium or as the one or more instruction on computer-readable medium or code and transmit.Computer-readable medium comprises computer-readable storage medium and communication media, and wherein communication media comprises any medium being convenient to transmit computer program from a place to another place.Storage medium can be any usable medium that computing machine can access.As example but be not limited to: computer-readable medium can comprise random access memory (Random Access Memory, RAM), ROM (read-only memory) (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read Only Memo) (Electrically Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact Disc Read-Only Memory, or other optical disc storage CD-ROM), magnetic disk storage medium or other magnetic storage apparatus, or the program code that can be used in carrying or storing the expectation with instruction or data structure form also can by any other medium of computer access.In addition.Any connection can be suitable become computer-readable medium.Such as, if software uses concentric cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (Digital Subscriber Line, DSL) or the wireless technology of such as infrared ray, radio and microwave and so on from website, server or other remote source, so the wireless technology of concentric cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave and so on be included in affiliated medium fixing in.As used in the present invention, dish (Disk) and dish (disc) comprise compression laser disc (CD), laser dish, laser disc, Digital Versatile Disc (DVD), floppy disk and Blu-ray Disc, the usual magnetic of its mid-game copy data, what dish then carried out optics with laser copies data.Combination above also should be included within the protection domain of computer-readable medium.
In a word, the foregoing is only the preferred embodiment of technical solution of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. an infrared distance measurement avoiding collision, is characterized in that, comprising:
When the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, start the infrared distance measurement module in described terminal;
Adjust described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, make the detection direction axis parallel of described infrared distance measurement module in ground;
Control the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier;
According to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
2. the method for claim 1, is characterized in that, the described angle of inclination according to the current relative horizontal position of described terminal adjusts described infrared distance measurement module, makes the detection direction axis parallel of described infrared distance measurement module before ground, also comprises:
Obtain the accekeration when current acceleration value of described terminal and described terminal are horizontal;
Accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
3. method as claimed in claim 1 or 2, it is characterized in that, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
4. the method as described in claim 1-3 any one, is characterized in that, the described translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting, comprising:
According to the translational speed of described user and/or described barrier, obtain the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
When described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
5. method as claimed in claim 4, it is characterized in that, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
6. the method for claim 1, is characterized in that, also comprises:
When the translational speed of described user is less than setting threshold value and/or described setting application closedown, close described infrared distance measurement module; Or
Receive user when closing the instruction of described infrared distance measurement module, close described infrared distance measurement module.
7. a terminal, is characterized in that, comprising:
Start unit, for be greater than when the translational speed of user handheld terminal being detected setting threshold value and in described terminal setting application open time, start the infrared distance measurement module in described terminal;
Adjustment unit, for adjusting described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, makes the detection direction axis parallel of described infrared distance measurement module in ground;
Control module, detects the translational speed of distance between barrier around described user and described user and/or described barrier for controlling described infrared distance measurement module;
First output unit, for the translational speed according to described distance and described user and/or described barrier, to described user's output alarm prompting.
8. terminal as claimed in claim 7, is characterized in that, also comprise:
First acquiring unit, accekeration when current acceleration value and described terminal for obtaining described terminal are horizontal;
Second acquisition unit, accekeration during for being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
9. terminal as claimed in claim 7 or 8, it is characterized in that, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
10. the terminal as described in claim 7-9 any one, is characterized in that, described first output unit comprises:
3rd acquiring unit, for the translational speed according to described user and/or described barrier, obtains the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
Second output unit, during for reaching the alarm threshold value distance corresponding with described relative moving speed when described distance, to described user's output alarm prompting.
11. terminals as claimed in claim 10, it is characterized in that, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
12. terminals as claimed in claim 7, is characterized in that, also comprise:
Closing unit, during for being less than setting threshold value and/or described setting application closedown when the translational speed of described user, closes described infrared distance measurement module; Or
When described closing unit closes the instruction of described infrared distance measurement module for receiving user, close described infrared distance measurement module.
13. 1 kinds of terminals, is characterized in that, comprise input media, output unit, storer and processor;
Wherein, described processor is for performing following steps:
When the translational speed of user handheld terminal being detected is greater than setting threshold value and setting application in described terminal is opened, start the infrared distance measurement module in described terminal;
Adjust described infrared distance measurement module according to the angle of inclination of the current relative horizontal position of described terminal, make the detection direction axis parallel of described infrared distance measurement module in ground;
Control the translational speed that described infrared distance measurement module detects distance between barrier around described user and described user and/or described barrier;
According to the translational speed of described distance and described user and/or described barrier, to described user's output alarm prompting.
14. terminals as claimed in claim 13, it is characterized in that, described processor performs the described angle of inclination according to the current relative horizontal position of described terminal and adjusts described infrared distance measurement module, make the detection direction axis parallel of described infrared distance measurement module before the step on ground, also perform following steps:
Obtain the accekeration when current acceleration value of described terminal and described terminal are horizontal;
Accekeration when being horizontal according to described current acceleration value and described terminal, obtains the angle of inclination of the current relative horizontal position of described terminal.
15. terminals as described in claim 13 or 14, it is characterized in that, described infrared distance measurement module comprises half elliptic infrared distance sensor array and motor, described infrared distance sensor array comprises first, second and the 3rd infrared distance sensor, the center of described first sensor overlaps with the minor axis of described half elliptic infrared distance sensor array, described second is symmetrical with the relative described minor axis of the 3rd sensor, the angle of described center and minor axis is 60 °, the center of described motor and the major axis of described half elliptic infrared distance sensor array overlap.
16. terminals as described in claim 13-15 any one, is characterized in that, described processor performs the described translational speed according to described distance and described user and/or described barrier, to the step of described user's output alarm prompting, comprising:
According to the translational speed of described user and/or described barrier, obtain the relative moving speed between described user and described barrier, the corresponding alarm threshold value distance of described relative moving speed;
When described distance reaches the alarm threshold value distance corresponding with described relative moving speed, to described user's output alarm prompting.
17. terminals as claimed in claim 16, it is characterized in that, described alarm mode comprises:
Image alarm prompting, audible alarm prompting or vibration alarming prompting.
18. terminals as claimed in claim 13, it is characterized in that, described processor also performs following steps:
When the translational speed of described user is less than setting threshold value and/or described setting application closedown, close described infrared distance measurement module; Or
Receive user when closing the instruction of described infrared distance measurement module, close described infrared distance measurement module.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/077415 WO2015172321A1 (en) | 2014-05-14 | 2014-05-14 | Infrared distance-measuring anti-collision method and terminal |
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| Publication Number | Publication Date |
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| CN104335260A true CN104335260A (en) | 2015-02-04 |
| CN104335260B CN104335260B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201480001272.1A Active CN104335260B (en) | 2014-05-14 | 2014-05-14 | A kind of infrared distance measurement avoiding collision and terminal |
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| CN (1) | CN104335260B (en) |
| WO (1) | WO2015172321A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN104335260B (en) | 2017-06-20 |
| WO2015172321A1 (en) | 2015-11-19 |
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