CN101382559A - Mobile terminal and drop alarm method and device for objects - Google Patents
Mobile terminal and drop alarm method and device for objects Download PDFInfo
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- CN101382559A CN101382559A CNA2008101418391A CN200810141839A CN101382559A CN 101382559 A CN101382559 A CN 101382559A CN A2008101418391 A CNA2008101418391 A CN A2008101418391A CN 200810141839 A CN200810141839 A CN 200810141839A CN 101382559 A CN101382559 A CN 101382559A
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Abstract
The invention is applicable to portable objects and provides a mobile terminal, an alarming method of object falling, and a device thereof. The alarming method of object falling comprises the following steps of: sampling the acceleration of the object; and judging whether the object falls or not according to the sampled acceleration, if so, alarming is instructed. The device of object falling comprises the following modules: an acceleration-acquiring module used for sampling the acceleration of the object; a falling judging module used for judging whether the object falls or not according to the acceleration sampled by the acceleration-acquiring module, if so, the alarming is instructed; and an alarming module used for giving out the alarm according to the alarm instruction of the falling judging module. By the invention, the user can be reminded timely by alarming after the object falls, thus preventing the loss of the object.
Description
Technical field
The invention belongs to portable object, relate in particular to the drop alarm method and the device of a kind of portable terminal and object.
Background technology
In the modern life, people more and more be unable to do without the use of mobile phone.People generally are positioned over mobile phone in pocket or the bag when carrying mobile phone.Like this, in life some urgent or hasty in, mobile phone is easy to and will drops from user's pocket or bag, and when this moment, the user often can not remove to note thing in pocket or the bag, has usually just lost after causing it to drop.
Summary of the invention
The purpose of the embodiment of the invention is to provide the drop alarm method and the device of a kind of portable terminal and object, is intended to solve in the prior art, the problem of losing easily after object drops.
The embodiment of the invention is achieved in that a kind of drop alarm method of object, and described method comprises the following steps:
The acceleration of sampling object;
Whether the acceleration judgment object according to sampling drops, if then indication is reported to the police.
Another purpose of the embodiment of the invention is to provide a kind of drop alarm device of object, and described device comprises following modules:
The acceleration acquisition module, the acceleration of the object that is used to sample;
Whether the judge module that drops is used for dropping according to the acceleration judgment object of described acceleration acquisition module sampling, if then indication is reported to the police;
Alarm module is used for the warning indication according to the judge module that drops, and sends warning.
Another purpose of the embodiment of the invention is to provide a kind of portable terminal, and described portable terminal comprises the drop alarm device of object recited above.
The beneficial effect of the embodiment of the invention is: by the acceleration of acceleration transducer sense object, when the motion feature that captures object met the feature of the process of dropping, the indication alarm sent warning.So just can after dropping, in time remind on object the user.
Description of drawings
Fig. 1 is the process flow diagram of the drop alarm method of the object that provides of the embodiment of the invention;
Fig. 2 is the process flow diagram that passes through height of drop judgment object drop alarm method that the embodiment of the invention provides;
Fig. 3 is the process flow diagram of the sudden change judgment object drop alarm method that passes through the acceleration direction that provides of the embodiment of the invention;
Fig. 4 is the structural drawing of the drop alarm device of the object that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In embodiments of the present invention, by the acceleration of acceleration transducer sense object, when the motion feature that captures object met the feature of the process of dropping, the indication alarm sent warning.So just can after dropping, in time remind on object the user.
Comprise acceleration transducer, processor and alarm module in the object.Acceleration transducer is used for the acceleration of object is sampled.Processor is used for the acceleration judgment object that samples according to acceleration transducer indication alarm module when dropping and reports to the police.Object can for mobile phone, PDA (Personal Digital Aid, personal digital assistant) or etc. portable terminal other contain the object of above-mentioned acceleration transducer, processor and alarm module.
Fig. 1 shows the flow process of the drop alarm method of the object that the embodiment of the invention provides.
In step S101, the acceleration of sampling object.
The acceleration of control acceleration transducer sampling object also promptly starts acceleration transducer, makes the acceleration of acceleration transducer sampling object.Can be that the object start time just starts acceleration transducer, also can be that object starts acceleration transducer when entering standby or alternate manner starts acceleration transducer.
The acceleration of the object of acceleration transducer sampling comprises the direction of acceleration and the size of acceleration.
In step S102, whether drop according to the acceleration judgment object of sampling.
According to the acceleration of sampling, whether judgment object drops, and also promptly judges according to each feature of the acceleration of the object that obtains whether it meets the feature that drops.If, execution in step S103 then; Otherwise execution in step S102.
In step S103, report to the police.
The alarm module of object sends warning, the prompting user.Like this, with regard to having reduced that object drops and the possibility lost.
Fig. 2 shows the process flow diagram that passes through height of drop judgment object drop alarm method that the embodiment of the invention provides.According to the kinematics law, object is when dropping, and in the vertical direction is done the approximate movement of falling object.In embodiments of the present invention, object refers to be positioned over user's pocket or the portable object in the bag.And because user's pocket or bag height overhead are very low, the resistance that object drops in the motion process can be ignored, and therefore can be equivalent to the movement of falling object to the object process of dropping.Object is done the height of the approximate movement of falling object in the ordinary course of things all much smaller than the height of situation about dropping, and therefore object can be done the condition that the height of the process of the movement of falling object drops as judgment object.And according to the kinematics law, know that object does the time and the acceleration of the movement of falling object, just can calculate the height of its motion.Concrete steps are as follows.
In step S201, whether judgment object is in holding state.
Whether judgment object is in holding state, if, execution in step S202 then, otherwise finish.
In embodiments of the present invention, processor monitors object when being in holding state, starts acceleration transducer the acceleration of object is sampled.Acceleration transducer can be three-dimensional or other multi-axis accelerometers, as long as this multi-axis accelerometer can sample the acceleration of vertical direction.In embodiments of the present invention, acceleration transducer is three-dimensional acceleration transducer, can sample the acceleration of the vertical direction of object.
This method can apply to free position, considers that the user can not know just when not using object that object drops, so in embodiments of the present invention, whether object is in holding state as the condition of carrying out the method whether inspected object drop.Acceleration transducer can be to monitor at processor to start when object enters holding state, also can be just to start when start.
In step S202, obtain the accekeration of the vertical direction that acceleration transducer samples.
Processor in the object reads the accekeration of the vertical direction that acceleration transducer samples.
In step S203, judge whether the accekeration of vertical direction and gravity acceleration value be close.
Whether the accekeration of judging the object vertical direction that acceleration transducer samples is close with local gravity acceleration value.If, execution in step S204 then; Otherwise execution in step S201.
Whether whether the accekeration of judgment object vertical direction close with the gravity acceleration value of locality, can be whether accekeration by the judgment object vertical direction is in predetermined threshold values scope.Predetermined threshold values scope can be the included scope of predetermined value up and down of local gravitational acceleration value.
In step S204, pick up counting.
Picking up counting can be to start timer to pick up counting, and the mode that the record start time point picks up counting or other can realize timing picks up counting.
In step S205, obtain the acceleration of acceleration transducer sampling vertical direction.
Processor in the object reads the acceleration of the vertical direction that acceleration transducer samples.
In step S206, judge whether the direction of the acceleration of vertical direction undergos mutation.
Judge whether the direction of the acceleration of the object vertical direction that acceleration transducer uses undergos mutation.If, execution in step S207 then; Otherwise return execution in step S205.
The direction that those skilled in the art will appreciate that the acceleration of object vertical direction is the acceleration of gravity direction, and it is undergone mutation, and the expression object is run into barrier, generally is that object has been fallen ground.It would, of course, also be possible to is the situations such as acceleration direction sudden change that object produces owing to user movement.The threshold values that the direction of judgement acceleration is undergone mutation can be according to the actual conditions setting, when this threshold values is provided with when too much, also should increase by a time controlled step, all do not reach threshold values with the acceleration change that prevents object sometimes to static whole process, caused execution in step S206 and S205 repeatedly.
In step S207, stop timing, and calculate drop height by the accekeration on mistiming and the vertical direction.
Stop mode that the timing correspondence picks up counting and can be stopping timer, the current stand-by time point of record or other can obtain the mode of current time.A little can obtain the mistiming in conjunction with picking up counting.According to the physics law of motion, just can calculate the height that object drops by the accekeration of object vertical direction in initial velocity, mistiming and the process that drops.In embodiments of the present invention, adopting initial velocity is zero, and object calculates the height that object drops with the physics formula of the move distance of constant acceleration motion.
The method of calculating the object drop height can be: highly=and accekeration * mistiming * mistiming of 1/2 * object vertical direction.
The accekeration of object vertical direction can be drop in the mean value of the accekeration of vertical direction in the process or the process that drops sometime an accekeration of object.
In step S208, judge that whether drop height is greater than predetermined height.
Whether the judgment object drop height is greater than predetermined height.If, execution in step S209 then; Otherwise return execution in step S201.
Predetermined height can specifically be provided with according to user's height; It also can be default general height, as get that height is more than 1.70 meters the man, mobile phone generally is placed in trouser pocket or the bag, and both approximately are half of height apart from the distance on ground, are 1.70 meters/2=0.85 rice so predetermined altitude is set; The general height of getting the Ms is 1.56 meters, and mobile phone generally is placed in trouser pocket or the bag, and both approximately are half of height apart from the distance on ground, are 1.56 meters/2=0.78 rice so predetermined altitude is set.Predetermined height can also be not distinguish the men and women and a unified height is set.
In step S209, report to the police, when the order of user's end of input, finish.
Object sends warning, just finishes when the order of user's end of input.The mode that object sends warning can be to send alarm sound or other can remind user's mode by loudspeaker.In embodiments of the present invention, employing is sent warning by the mode of all being sent maximum acoustic by all loudspeakers in the object.
Fig. 3 shows the flow process of the sudden change judgment object drop alarm method that passes through the acceleration direction that the embodiment of the invention provides.Object drops, and twice sudden change can take place in the direction of acceleration in the process.Be to drop to when landing for the first time, because the elastic force on ground, the direction of acceleration is sported upwards by downward sensing the earth's core; Be after upspringing for the second time, because the object built on stilts no longer be subjected to the elastic force on ground, and have only gravity, so the direction of acceleration is again by upwards sporting downward sensing the earth's core from ground.After the direction of acceleration takes place to sport upwards by downward sensing the earth's core earlier, in very short time again by upwards sporting downward sensing the earth's core, the situation of this twice sudden change generally is to occur at the object Shi Caihui that drops, and therefore twice sudden change can take place according to the direction of acceleration and come judgment object to drop.The specific implementation step is as follows.
In step S3001, when entering standby, start acceleration transducer and sample.
When object enters holding state, start acceleration transducer the acceleration of object is sampled.Specifically as mentioned above.
In step S3002, obtain the accekeration of the vertical direction of acceleration transducer sampling.
Processor in the object reads the accekeration of the vertical direction that acceleration transducer samples.
In step S3003, judge whether the accekeration that samples is approaching with gravity acceleration value.
Whether the accekeration of judging the object vertical direction that acceleration transducer samples is close with local gravity acceleration value.If, execution in step S3004 then; Otherwise execution in step S3005.Concrete deterministic process as mentioned above.
In step S3004, whether judgment object is in standby.
Whether judgment object is in holding state, if execution in step S3002; Otherwise termination routine.
In step S3005, obtain the acceleration of the vertical direction of acceleration transducer sampling.
Processor in the object reads the acceleration of the vertical direction that acceleration transducer samples.
In step S3006, judge the whether from bottom to top sudden change of acceleration direction.
Judge the whether from bottom to top sudden change of acceleration direction.If, execution in step S3007 then, otherwise execution in step S3005.
The direction of acceleration of gravity is to point to the earth's core, and the direction of the acceleration of object just can be suddenlyd change when only running into barrier.Such as, when object was run into ground, the acceleration direction of object was from sporting downwards upwards.
In step S3007, obtain the acceleration of the vertical direction of acceleration transducer sampling.
Processor in the object reads the acceleration of the vertical direction that acceleration transducer samples.
In step S3008, judge the whether from top to bottom sudden change of acceleration direction.
Judge whether from top to bottom object acceleration direction that acceleration transducer samples.If, execution in step S3010 then; Otherwise execution in step S3009.
In step S3009, judge whether in the acceleration direction is suddenlyd change the back preset time from bottom to top.
Judge whether in the acceleration direction is suddenlyd change the back preset time from bottom to top.If, execution in step S3008 then; Otherwise execution in step S3004.Change in the brief acceleration direction that drops is very fast, if not within the predetermined time, just has not been situation about dropping.
In step S3010, report to the police, when receiving user's END instruction, finish.
Object sends warning, just finishes when the order of user's end of input.Specifically as mentioned above.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be in being stored in a computer read/write memory medium, described storage medium is as ROM/RAM, disk, CD etc.
Fig. 4 shows the structural drawing of the object drop alarm device that the embodiment of the invention provides.This drop alarm device can be software unit, hardware cell or the software and hardware combining unit that is built in object.Object can be that mobile phone, MP3, MP4 and PDA portable terminals such as (Personal Digital Aid, personal digital assistants) or other can be equipped with the object of this object drop alarm device.For convenience of description, only show the part relevant here with the embodiment of the invention.
The acceleration of controlling of sampling module 401 control acceleration transducer sampling objects; The acceleration of acceleration acquisition module 402 sampling objects; Whether the acceleration judgment object that the judge module 403 that drops is sampled according to described acceleration acquisition module drops, if then indication is reported to the police; Alarm module 404 sends warning according to the warning indication of the judge module 403 that drops.Acceleration acquisition module 402 can be to realize that by three-dimensional or other multi-axis accelerometers that can sample the acceleration of vertical direction the acceleration of the object of its sampling comprises the size and Orientation of the acceleration of object.Specifically as mentioned above.
The judge module 403 that drops can comprise that the time obtains submodule 4031 and highly judge submodule 4032, and perhaps the acceleration direction is judged submodule 4033.
Time obtains submodule 4031 and obtains that to be close to the run duration that gravity acceleration value undergos mutation to the direction of vertical direction acceleration from object vertical direction accekeration long; Judge that highly submodule 4032 judges that whether obtain run duration vertical direction accekeration long and that acceleration acquisition module 402 obtains that submodule 4031 obtains according to the time calculates height that object drops greater than predetermined height, if, then indication warning.Specifically as mentioned above.
Acceleration judges that whether vertical direction accekeration that submodule 4033 judges that acceleration acquisition module 402 obtains is near gravity acceleration value, if whether the direction of then judging acceleration is earlier by sporting upwards, again by upwards sporting downwards downwards; If then indication is reported to the police.Specifically as mentioned above.
In embodiments of the present invention, obtain the acceleration of object, whether drop by the acceleration magnitude or the direction judgment object of object, if then send warning by acceleration transducer.When dropping, just reminds on object the user like this.Just sample when judgment object the is in holding state acceleration of object helps optimization system.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of object drop alarm method is characterized in that, described method comprises the following steps:
The acceleration of sampling object;
Whether the acceleration judgment object according to sampling drops, if then indication is reported to the police.
2, the method for claim 1 is characterized in that, the acceleration step of described sampling object is specially by the direction of the acceleration of acceleration transducer sampling object and the size of acceleration.
3, the method for claim 1 is characterized in that, before the acceleration step of described sampling object, also comprise step: whether judgment object is in holding state, is then to indicate the acceleration step of carrying out described sampling object.
As each described method of claim 1 to 3, it is characterized in that 4, whether described acceleration judgment object according to sampling drops, if then indicate alarming step to be specially:
Obtain that to be close to the run duration that gravity acceleration value undergos mutation to the direction of vertical direction acceleration from object vertical direction accekeration long;
Whether the move distance that judgement is long according to the described run duration of obtaining and the vertical direction accekeration calculates is greater than predetermined height, if then indication is reported to the police.
As each described method of claim 1 to 3, it is characterized in that 5, whether described acceleration judgment object according to sampling drops, if then indicate alarming step to be specially:
After detecting the vertical direction accekeration that obtains and being close to gravity acceleration value, whether the direction of judging acceleration is earlier by becoming downwards upwards, again by upwards becoming downwards, if then indication is reported to the police.
6, a kind of drop alarm device of object is characterized in that, described device comprises following modules:
The acceleration acquisition module, the acceleration of the object that is used to sample;
Whether the judge module that drops is used for dropping according to the acceleration judgment object of described acceleration acquisition module sampling, if then indication is reported to the police;
Alarm module is used for the warning indication according to the judge module that drops, and sends warning.
7, as device as described in the claim 6, it is characterized in that described drop alarm device also comprises:
The controlling of sampling module is used to control the acceleration of described acceleration acquisition module sampling object.
8, as device as described in the claim 6, it is characterized in that the described judge module that drops comprises following submodule:
Time is obtained submodule, is used to obtain that to be close to the run duration that gravity acceleration value undergos mutation to the direction of vertical direction acceleration from object vertical direction accekeration long;
Highly judge submodule, be used to judge according to the time and whether obtain object drop height that run duration vertical direction accekeration long and that the acceleration acquisition module obtains that submodule obtains calculates greater than predetermined height, if, then indication warning.
9, device as claimed in claim 6 is characterized in that, the described judge module that drops comprises following submodule:
Acceleration is judged submodule, is used to judge that whether vertical direction accekeration that the acceleration acquisition module obtains is near gravity acceleration value, if whether the direction of then judging acceleration is earlier by sporting upwards, again by upwards sporting downwards downwards; If then indication is reported to the police.
10, a kind of portable terminal is characterized in that, described portable terminal comprises the drop alarm device as each described object of claim 6 to 9.
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| CNA2008101418391A CN101382559A (en) | 2008-09-04 | 2008-09-04 | Mobile terminal and drop alarm method and device for objects |
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| CNA2008101418391A CN101382559A (en) | 2008-09-04 | 2008-09-04 | Mobile terminal and drop alarm method and device for objects |
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| CN102236953A (en) * | 2010-05-07 | 2011-11-09 | 盛乐信息技术（上海）有限公司 | Tracking method of fallen mobile electronic equipment and mobile electronic equipment |
| CN102413442A (en) * | 2011-11-10 | 2012-04-11 | 惠州Tcl移动通信有限公司 | Method for preventing loss of mobile phone and mobile phone |
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