CN107238403A - It is a kind of to recognize the method that mobile terminal falls - Google Patents
It is a kind of to recognize the method that mobile terminal falls Download PDFInfo
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- CN107238403A CN107238403A CN201710439665.6A CN201710439665A CN107238403A CN 107238403 A CN107238403 A CN 107238403A CN 201710439665 A CN201710439665 A CN 201710439665A CN 107238403 A CN107238403 A CN 107238403A
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- 230000005484 gravity Effects 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 2
- 230000004069 differentiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
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- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- G—PHYSICS
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Abstract
The method that mobile terminal falls, including step are recognized the invention discloses a kind of：Pressure sensor data according to mobile terminal left and right sides is arranged on judges whether current mobile terminal leaves human hand；If it is determined that not leaving human hand, then judge whether current mobile terminal may be fallen according to the light sensor data for being arranged on mobile terminal positive and negative；If it is determined that may fall, then continue to judge whether the acceleration that current mobile terminal falls is approximately equal to acceleration of gravity according to the range-sensor data for being arranged on mobile terminal positive and negative；If it is, judging that current mobile terminal is in the state fallen.Whether the present invention, which can accurately identify current mobile terminal and be in, falls state, and then can provide accurate signal for follow-up fall-proofing device of opening so that the mobile terminal safety fallen lands, it is to avoid or mitigate its infringement being subject to, increase service life.
Description
Technical field
It is more particularly to a kind of to recognize the side that mobile terminal falls the present invention relates to mobile terminal safety Protective strategy field
Method.
Background technology
With the high speed development of society, mobile terminal (including mobile phone, tablet personal computer etc.) must not as our daily lifes
The instrument that can lack, it, which develops, makes our life more facilitate.But mobile terminal user is constantly subjected to one while facility
Real the problem of, is perplexed, that is, mobile terminal often because careless cause to fall, once being dropped to the ground from eminence, can all be made
Into it is a certain degree of damage, most is that screen is broken, and shell is broken, some inside can also circuit loosen or damage, so as to lead
Cause cisco unity malfunction.
Damage is caused in order to prevent mobile terminal from falling, research staff has carried out many grind in terms of hardware and software
Study carefully, whether one of core point is how to accurately identify current mobile terminal and be in fall state.Only this method can be obtained
To accurate judgement, necessary mobile terminal safeguard procedures below can be just taken.But the recognition methods that presently, there are is in accuracy of judgement
Shortcomings are gone back in property.
The content of the invention
It is an object of the invention to the shortcoming and deficiency for overcoming prior art, there is provided the side that a kind of identification mobile terminal falls
Method, the data that this method is obtained based on the pressure on mobile terminal, light, range sensor, can accurately identify current shifting
Whether dynamic terminal, which is in, is fallen state, and then can provide accurate signal for follow-up fall-proofing device of opening so that fallen
Mobile terminal safety lands, it is to avoid or mitigate its infringement being subject to, increase service life.
The purpose of the present invention is realized by following technical scheme：It is a kind of to recognize the method that mobile terminal falls, including step
Suddenly：
(1) according to the pressure sensor data for being arranged on mobile terminal left and right sides judge current mobile terminal whether not from
Open human hand；
(2) if it is determined that not leaving human hand, then sentenced according to the light sensor data for being arranged on mobile terminal positive and negative
Whether disconnected current mobile terminal may be fallen；
(3) if it is determined that may fall, then continue to be sentenced according to the range-sensor data for being arranged on mobile terminal positive and negative
Whether the acceleration that disconnected current mobile terminal falls is approximately equal to acceleration of gravity；If it is, judging current mobile terminal
In the state fallen.
Specifically, in the step (1), it is respectively P to set current left and right sides pressure sensor dataLAnd PR, the pressure of the two
Power difference P=| PL-PR|, preset pressure differential threshold deltaP, then the method judged is as follows：
(1-1) is if PLAnd PRIt is not 0, and P ＜ ΔsP, then show that mobile terminal does not leave human hand；
(1-2) is if PLAnd PRIt is not 0, and P >=ΔP, then show that mobile terminal leaves human hand；
(1-3) is if PLAnd PRIt is 0, then shows that mobile terminal leaves human hand；
(1-4) is if PLAnd PRAny is 0, and P >=ΔP, then show that mobile terminal leaves human hand.
Specifically, in the step (2), the light sensor data of setting current mobile terminal positive and negative are respectively LFWith
LB, positive and negative light difference L=| LF-LB|, preset light difference threshold deltaL, then the method judged is：
(2-1) is when L ＜ ΔsL, show that mobile terminal may fall from hand；
(2-2) is when L >=ΔL, then it is determined as that mobile terminal is static from hand, remains static.
Specifically, in the step (3), the range-sensor data of setting current mobile terminal positive and negative is respectively DFWith
DB, and the positive and negative range-sensor data D after elapsed time tF' and DB', and positive and negative mobile terminal is calculated in time t
Relative velocity VFAnd VB：
VF=| DF-DF‘|/t
VB=| DB-DB‘|/t
Preset speed difference threshold deltaV, work as relative velocity | VF-VB| ＜ ΔsV, i.e. positive and negative range sensor measures
Data are approximate fixed value or are 0, then judge that mobile terminal is not in falling state；Otherwise, continuous detection front is in time t
The acceleration of interior mobile terminal：aF=Δ VF/ t, the acceleration a of reverse side mobile terminal in time tB=Δ VB/ t, works as aF＞ 0,
Mobile terminal front is earthward moved, and works as aF＜ 0, mobile terminal reverse side is earthward moved；
Work as aFOr aBEqual to gravity acceleration g, then show that mobile terminal earthward falls with the movement of falling object, works as aF
Or aBIt is not equal to gravity acceleration g, then is determined as mobile terminal to be placed on self-shooting bar or other objects and moves.
It is preferred that, preset light change thresholding δL, read mobile terminal positive and negative light sensor data LIFAnd LIB,
Certain interval of time again reads off light sensor data LOFAnd LOBOnce, LOF-LIF＞ δL, LOB-LIB＞ δL, then judge now
Taken out for mobile terminal out of pocket, acoustic-optic alarm is triggered, so as to play prompting anti-theft feature.
It is preferred that, after step (3), judge that current mobile terminal is in after the state fallen, real-time reading face is towards ground
The range-sensor data in face, once distance from the ground is less than default risk altitude value, then opens fall-proofing device, so that
Limited source of the gas need not be saved it is determined that the very first time fallen is switched on fall-proofing device.
It is preferred that, the fall-proofing device includes 8 fumaroles, is distributed in four rounded edges of mobile terminal positive and negative
The vertical plane of place, jet axially bored line and mobile terminal is along inclined 25 degree outside fillet；Each fumarole respectively by miniature breather pipe with
Air compressing bottle inside mobile terminal is connected, and is provided with gas solenoid valve on miniature breather pipe, the switch of gas solenoid valve by
Controller is controlled.Obliquely downward of the direction of fumarole injection in each fillet of mobile terminal outwardly, plays increase mobile terminal four
The dynamics buffered during individual corner connection tread surface.
The present invention compared with prior art, has the following advantages that and beneficial effect：
The present invention is acquired to pressure sensor, light sensor, the range-sensor data of dress on mobile terminals
And differentiation, automatically identify that mobile terminal is static from hand from hand, mobile terminal from hand, mobile terminal, mobile terminal is put from hand
In pocket, mobile terminal takes out out of pocket or bag, mobile terminal falls from hand, mobile terminal from hand drops into risk distance etc.
Situation.When identifying that mobile terminal falls and close to risk distance, then fall-proofing device can be driven to work, prevent mobile terminal because
Fall situations such as generation is shielded cruelly, casing is broken, internal circuit is damaged, increase the service life of mobile terminal.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the present embodiment.
Fig. 2 is the present embodiment method flow diagram.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.The present invention is made with reference to embodiment and accompanying drawing
Further detailed description, but the implementation of the present invention is not limited to this.
Embodiment 1
Referring to Fig. 1, the present embodiment methods described is based on the device, two pressure sensors collection mobile terminal of left and right sides
The pressure data of body is held in the left and right sides, for recognizing whether mobile terminal is left in the hand of user；Light sensor is gathered
The light data of mobile terminal positive and negative, landing ground when recognizing that mobile terminal falls by the light data differences of positive and negative is
Front or reverse side；Two range sensors of positive and negative are used to gather when mobile terminal falls the relatively range data in face,
When mobile terminal leaves human body or desktop falls, range sensor measures height distance data from the ground in real time, when height
When distance is close to risk distance value, controller control drive circuit, driving fall-proofing device work prevents mobile terminal because falling
Situations such as generation is shielded cruelly, casing is broken, internal circuit is damaged.
With reference to Fig. 2, the various differentiation situations of the present embodiment methods described are specifically described.
1st, mobile terminal does not differentiate from hand
Pressure differential threshold delta is setP, controller reading left and right sides pressure sensor data PLAnd PR, and calculate pressure differential P
=| PL-PR|, if two data are not 0, and P ＜ ΔsP, illustrating the left and right side two ends of mobile terminal has the holding of user
Pressure exist, show that mobile terminal does not leave human hand, otherwise, it is determined that having left human hand for mobile terminal.Pressure differential threshold deltaP
It is to prevent human hand grip different, and produces left and right sides pressure sensor data PLAnd PRIt is of different sizes so that cause differentiate produce
Mistake and set, i.e., differentiated with pressure differential, reduce that human body grip is different and the interference of human factor that produces.Pressure differential
Threshold deltaPNumerical value by mobile terminal user by using it is preceding it is carried out it is normal take hold when, according to the left and right lateral pressure of actual measurement
Sensing data PLAnd PRThe absolute value of difference determine.
2nd, mobile terminal differentiates from hand
When controller reads left and right sides pressure sensor data PLAnd PR, two data are 0, show mobile terminal left and right sides
Pressure is not detected, human hand does not hold mobile terminal, be determined as that mobile terminal has left human hand；Work as PLAnd PRData have one
Individual is not 0, and another is 0, and P ＞ ΔsP, it is determined as that mobile terminal has left human hand, is placed in pocket and causes movement eventually
Certain side is held to be produced because of the pressure that pocket is formed to pressure sensor.
3rd, mobile terminal is static from hand differentiates
Light difference threshold delta is setL, controller reading positive and negative light sensor data LFAnd LB, calculate positive and negative light
Line difference L=| LF-LB|, when L ＜ ΔsL, show that mobile terminal may fall from hand；When L ＞ ΔsL, then it is determined as mobile terminal from hand
It is static, in put on the table, on bed, the inferior inactive state of pillow.Light difference threshold deltaLReduction mobile terminal is provided for exist
Positive and negative is detected under same light environment light is different and issuable decision errors, light difference threshold deltaLBy moving
When terminal is placed on position face-up under indoor light environment, pass through positive and negative light sensor data LFAnd LBDifference it is exhausted
Determined to being worth.
4th, mobile terminal is placed on pocket from hand and differentiated
When L ＜ ΔsL, controller reading positive and negative range-sensor data DFAnd DB, and the positive and negative after elapsed time t
Range-sensor data DF' and DB', and calculate relative velocity V of the positive and negative mobile terminal in time tFAnd VB：
VF=| DF-DF‘|/t
VB=| DB-DB‘|/t
Speed difference threshold delta is setV, work as relative velocity | VF-VB| ＜ ΔsV, i.e., the data that positive and negative range sensor is measured
For approximate fixed value or be 0, and positive and negative light is less than and sets light difference threshold deltaL, then it is determined as that mobile terminal is placed on clothing
Bag in, in box, pillow it is inferior.Speed difference threshold delta is setV, prevent mobile terminal to be placed in human body pocket or move
Produced when in the pocket of object or in box rock formed by the thresholding that is set to the interference of judgement of small velocity variations
Value.Speed difference threshold deltaV, numerical value by mobile terminal user by using it is preceding load in pocket normal walking to it when, according to
The relative velocity V in time t of actual measurementFAnd VBThe absolute value of difference determine.
5th, mobile terminal takes out out of pocket or bag and differentiated
When mobile terminal takes out out of pocket or bag, the environment of light, positive and negative two are moved to from the pocket of half-light
The light-inletting quantity of light sensor produces larger change.Light is set to change thresholding δL, controller reading mobile terminal is in pocket
Positive and negative light sensor data L when interiorIFAnd LIB, the positive and negative light level when reading mobile terminal outside pocket in some time
Device data are LOFAnd LOB, and LOF-LIF＞ δL, LOB-LIB＞ δL, then judge now to take out out of pocket as mobile terminal, now
There are two kinds of possibility, one is that user itself takes out mobile terminal, and two be that mobile terminal is stolen, and is safety prompt function, now by controlling
Device processed starts mobile terminal own voices warning function by interface circuit, sends voices such as " attentions ", realizes and reminds antitheft work(
Energy.Light change thresholding δLPocket half-light environment is placed on by night mobile terminal to move again to outside pocket under light thread environment, is led to
Cross positive and negative light sensor data LOFAnd LOBWith LIFAnd LIBThe minimum value of difference determine.
6th, mobile terminal falls differentiation from hand
When L ＜ ΔsL, and relative velocity | VF| ＞ ΔsVOr | VB| ＞ ΔsV, show that mobile terminal has acceleration movement, continuous inspection
Survey the acceleration of front mobile terminal in time t：aF=Δ VF/ t, the acceleration a of reverse side mobile terminal in time tB=Δ
VB/ t, works as aF＞ 0, mobile terminal front is earthward moved, and works as aF＜ 0, mobile terminal reverse side is earthward moved.Work as aFOr aBIt is equal to
Gravity acceleration g, then show that mobile terminal earthward falls with the movement of falling object, works as aFOr aBIt is not equal to acceleration of gravity
G, then be determined as mobile terminal to be placed on self-shooting bar or other objects and move.
7th, mobile terminal drops into risk distance from hand and differentiated
Confirm that mobile terminal falls from hand, control continuous reading face towards the range-sensor data D on groundFOr DB, work as distance
Close to the risk distance D setD, then it is determined as that mobile terminal has entered risk distance.
8th, perform
Confirm that mobile terminal has entered risk distance, controller starts drive circuit, and control fall-proofing device work prevents from moving
Situations such as dynamic terminal is because falling the sudden and violent screen of generation, casing is broken, internal circuit is damaged.
Fall-proofing device described in the present embodiment is realized using following scheme：Including 8 fumaroles, mobile terminal is distributed in
At four rounded edges of positive and negative, the vertical plane of jet axially bored line and mobile terminal is along inclined 25 degree outside fillet；Each fumarole
It is connected respectively by miniature breather pipe with the Air compressing bottle inside mobile terminal, gas electromagnetism is provided with miniature breather pipe
Valve, the switch of gas solenoid valve is by controller control.The direction of fumarole injection is under each fillet of mobile terminal outwardly oblique
Side, plays the dynamics buffered during increase by four corner connection tread surfaces of mobile terminal.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (7)
1. a kind of recognize the method that mobile terminal falls, it is characterised in that including step：
(1) judge whether current mobile terminal leaves human hand according to the pressure sensor data for being arranged on mobile terminal left and right sides；
(2) if it is determined that not leaving human hand, then judge to work as according to the light sensor data for being arranged on mobile terminal positive and negative
Whether preceding mobile terminal may fall；
(3) if it is determined that may fall, then continue to judge to work as according to the range-sensor data for being arranged on mobile terminal positive and negative
Whether the acceleration that preceding mobile terminal falls is approximately equal to acceleration of gravity；If it is, judging that current mobile terminal is in
The state fallen.
2. the method that identification mobile terminal according to claim 1 falls, it is characterised in that in the step (1), setting
Current left and right sides pressure sensor data is respectively PLAnd PR, the pressure differential P=of the two | PL-PR|, preset pressure differential thresholding
ΔP, then the method judged is as follows：
(1-1) is if PLAnd PRIt is not 0, and P ＜ ΔsP, then show that mobile terminal does not leave human hand；
(1-2) is if PLAnd PRIt is not 0, and P >=ΔP, then show that mobile terminal leaves human hand；
(1-3) is if PLAnd PRIt is 0, then shows that mobile terminal leaves human hand；
(1-4) is if PLAnd PRAny is 0, and P >=ΔP, then show that mobile terminal leaves human hand.
3. the method that identification mobile terminal according to claim 1 falls, it is characterised in that in the step (2), setting
The light sensor data of current mobile terminal positive and negative are respectively LFAnd LB, positive and negative light difference L=| LF-LB|, preset
Light difference threshold deltaL, then the method judged is：
(2-1) is when L ＜ ΔsL, show that mobile terminal may fall from hand；
(2-2) is when L >=ΔL, then it is determined as that mobile terminal is static from hand, remains static.
4. the method that identification mobile terminal according to claim 1 falls, it is characterised in that in the step (3), setting
The range-sensor data of current mobile terminal positive and negative is respectively DFAnd DB, and the positive and negative Distance-sensing after elapsed time t
Device data DF' and DB', and calculate relative velocity V of the positive and negative mobile terminal in time tFAnd VB：
VF=| DF-DF‘|/t
VB=| DB-DB‘|/t
Preset speed difference threshold deltaV, work as relative velocity | VF-VB| ＜ ΔsV, i.e., the data that positive and negative range sensor is measured are
Approximate fixed value is 0, then judges that mobile terminal is not in falling state；Otherwise, continuous detection front is moved in time t
The acceleration of terminal：aF=Δ VF/ t, the acceleration a of reverse side mobile terminal in time tB=Δ VB/ t, works as aF＞ 0, it is mobile whole
Rectify towards ground motion, work as aF＜ 0, mobile terminal reverse side is earthward moved；
Work as aFOr aBEqual to gravity acceleration g, then show that mobile terminal earthward falls with the movement of falling object, works as aFOr aBNo
Equal to gravity acceleration g, then it is determined as mobile terminal to be placed on self-shooting bar or other objects and moves.
5. the method that identification mobile terminal according to claim 1 falls, it is characterised in that preset light change door
Limit δL, read mobile terminal positive and negative light sensor data LIFAnd LIB, certain interval of time again reads off light sensor number
According to LOFAnd LOBOnce, LOF-LIF＞ δL, LOB-LIB＞ δL, then judge now to take out out of pocket as mobile terminal, trigger acousto-optic report
Alarm device.
6. the method that identification mobile terminal according to claim 1 falls, it is characterised in that after step (3), judges to work as
Preceding mobile terminal is in after the state fallen, real-time reading face towards ground range-sensor data, once from the ground away from
From less than default risk altitude value, then fall-proofing device is opened.
7. the method that identification mobile terminal according to claim 6 falls, it is characterised in that the fall-proofing device includes
8 fumaroles, are distributed at four rounded edges of mobile terminal positive and negative, the vertical plane edge of jet axially bored line and mobile terminal
Inclined 25 degree outside fillet；Each fumarole is connected by miniature breather pipe with the Air compressing bottle inside mobile terminal respectively, micro-
Type breather pipe is provided with gas solenoid valve, and the switch of gas solenoid valve is by controller control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710439665.6A CN107238403B (en) | 2017-06-12 | 2017-06-12 | A method of identification mobile terminal falls |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710439665.6A CN107238403B (en) | 2017-06-12 | 2017-06-12 | A method of identification mobile terminal falls |
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| CN107238403A true CN107238403A (en) | 2017-10-10 |
| CN107238403B CN107238403B (en) | 2019-09-17 |
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Cited By (6)
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| CN107659732A (en) * | 2017-10-18 | 2018-02-02 | 上海斐讯数据通信技术有限公司 | A kind of method and system that cell phone intelligent shatter-resistant is realized by protective case |
| CN108228427A (en) * | 2018-01-23 | 2018-06-29 | 广东欧珀移动通信有限公司 | Electronic equipment prevents from falling method and Related product |
| CN108255632A (en) * | 2018-01-22 | 2018-07-06 | 广东欧珀移动通信有限公司 | Method for computing data and Related product are fallen based on artificial intelligence |
| CN110891115A (en) * | 2019-11-15 | 2020-03-17 | 珠海格力电器股份有限公司 | Electronic equipment drop protection method and device, storage medium and electronic equipment |
| CN111742540A (en) * | 2018-02-28 | 2020-10-02 | 华为技术有限公司 | Detecting patterns and behaviors to avoid mobile terminal drop events |
| CN114993304A (en) * | 2022-06-29 | 2022-09-02 | 北京石头创新科技有限公司 | Method, device, medium and electronic equipment for determining position of robot |
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| CN102939571A (en) * | 2010-02-11 | 2013-02-20 | 亚马逊技术股份有限公司 | Protecting devices from impact damage |
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| CN107659732A (en) * | 2017-10-18 | 2018-02-02 | 上海斐讯数据通信技术有限公司 | A kind of method and system that cell phone intelligent shatter-resistant is realized by protective case |
| CN108255632A (en) * | 2018-01-22 | 2018-07-06 | 广东欧珀移动通信有限公司 | Method for computing data and Related product are fallen based on artificial intelligence |
| CN108255632B (en) * | 2018-01-22 | 2021-08-06 | Oppo广东移动通信有限公司 | Fall data calculation method based on artificial intelligence and related product |
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| CN108228427B (en) * | 2018-01-23 | 2021-08-24 | Oppo广东移动通信有限公司 | Electronic equipment, falling prevention method and related product |
| CN111742540A (en) * | 2018-02-28 | 2020-10-02 | 华为技术有限公司 | Detecting patterns and behaviors to avoid mobile terminal drop events |
| CN110891115A (en) * | 2019-11-15 | 2020-03-17 | 珠海格力电器股份有限公司 | Electronic equipment drop protection method and device, storage medium and electronic equipment |
| CN114993304A (en) * | 2022-06-29 | 2022-09-02 | 北京石头创新科技有限公司 | Method, device, medium and electronic equipment for determining position of robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107238403B (en) | 2019-09-17 |
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