CN103152483B - Method and device for monitoring approaching object by using mobile device - Google Patents
Method and device for monitoring approaching object by using mobile device Download PDFInfo
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Abstract
The invention discloses a method and a device for monitoring an approaching object by using a mobile device. The method comprises the steps of: S1, judging whether other objects approaching the mobile device exist except for a mobile device user, if yes, executing the step S2; otherwise, executing the step S1; S2, calculating the distance and/or speed of the other approaching objects relative to the mobile device; and S3, outputting corresponding reminding information according to a calculating result of the step S2. According to the method and device provided by the invention, the property loss or hurt to personal safety because a user is robbed or collides on an external object due to paying attention to the mobile device in a walking process is avoided.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for monitoring an approaching object using a mobile device.
Background
In modern society, with the increasing living standard of people, mobile devices such as mobile phones or tablet computers become an important part of life, and are the most important communication or entertainment tools in life. With the development of communication technology, mobile devices can provide not only voice call functions but also various other functions.
Various functions in the mobile equipment can meet the requirement that people work or entertain in the fragmentary time of waiting for cars, giving a recreation and the like. For example: many users currently view mobile devices while walking. Because the content in the mobile equipment is always concerned, the change of the external environment is not noticed, so that the mobile equipment is robbed or collides with other external things, property loss is caused, or personal safety is damaged. However, there is no corresponding protection measure in the current mobile devices to avoid such things.
Disclosure of Invention
The invention aims to provide a method and a device for monitoring an approaching object by utilizing a mobile device. By monitoring the objects close to the periphery of the mobile equipment in real time, the phenomenon that a user is robbed or collides with foreign objects due to paying attention to the mobile equipment in the walking process to cause property loss or personal safety hazards is avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of monitoring an approaching object with a mobile device, the method comprising:
s1, determining whether there is any other object approaching the mobile device except the user of the mobile device: if yes, go to step S2; otherwise, go to step S1;
s2, calculating the distance and/or the speed of the other close objects relative to the mobile equipment;
and S3, outputting corresponding prompt information according to the calculation result of the step S2.
Further, the step S1 further includes:
s11, the mobile device sends a first detection signal, if a first feedback signal of the first detection signal is detected, a first distance value is calculated according to the first detection signal and the first feedback signal, and step S12 is executed; otherwise, go to step S11;
s12, sending the second probing signal again by the mobile device at a time interval, if detecting a second feedback signal of the second probing signal, calculating a second distance value according to the second probing signal and the second feedback signal, and performing step S13; otherwise, go to step S11;
and S13, if the second distance value is smaller than the first distance value and is larger than a preset threshold value, judging that other objects except the user of the mobile device and approaching the mobile device exist.
Further, the step S1 further includes:
s11 ', the mobile device sends a first probing signal, after a predetermined threshold time interval, if a first feedback signal of the first probing signal is detected, calculates a first distance value according to the first probing signal and the first feedback signal, and performs step S12'; otherwise, step S11' is executed;
s12 ', after a certain time interval, the mobile device sends the second probing signal again, and after a predetermined threshold time interval, if the second feedback signal of the second probing signal is detected, calculates a second distance value according to the second probing signal and the second feedback signal, and executes step S13'; otherwise, step S11' is executed;
s13', if the second distance value is smaller than the first distance value, it is determined that there is another object approaching the mobile device except the user of the mobile device.
Further, the detection signal comprises an infrared detection signal or an ultrasonic detection signal.
Further, the manner of detecting the approaching object includes: a manner of detecting a proximity object in one direction or a manner of detecting a proximity object in a plurality of directions;
when detecting a manner of approaching an object in a plurality of directions, the mobile device transmits an ultrasonic signal to each direction; wherein: the ultrasonic signals are transmitted to all directions by adopting a mode that one ultrasonic sensor which transmits in all directions transmits ultrasonic signals, a mode that a plurality of ultrasonic sensors which transmit in all directions are arranged in the mobile equipment to transmit ultrasonic signals, or the ultrasonic signals are transmitted to the periphery of the mobile equipment by one omnidirectional antenna which transmits the ultrasonic signals to all directions at regular time.
Further, in the step S3, the method for outputting the corresponding prompt information according to the calculation result of the step S2 includes: a voice prompt mode, an interface prompt mode or a backlight prompt mode.
Further, the interface prompting method further comprises the following steps: and popping up a floating window on the screen of the mobile equipment, and displaying prompt information in the floating window.
Correspondingly, the invention also discloses a device for monitoring the approaching object by utilizing the mobile equipment, which comprises the following components:
the detection module is used for judging whether other objects approaching the mobile equipment exist except the user of the mobile equipment;
the calculating module is used for calculating the distance and/or the speed of the other objects which are close to the mobile equipment and are detected by the detecting module relative to the mobile equipment;
and the prompt module is used for outputting corresponding prompt information according to the calculation result of the calculation module.
Further, the detection module further comprises a detection signal sending module, a feedback signal receiving module, a calculation and judgment module and a timing control module:
the timing control module is used for sending a control signal and controlling the starting of the detection signal sending module and the feedback signal receiving module;
the detection signal sending module is used for sending a detection signal according to the received control signal;
a feedback signal receiving module, configured to receive a feedback signal of the detection signal sent by the detection signal sending module;
and the calculating and judging module is used for judging whether other objects approaching the mobile equipment exist except the user of the mobile equipment or not according to the detection signal and the feedback signal.
Further, the detection module comprises an ultrasonic generator or an infrared transmitter.
Further, the detection module comprises: detecting a proximity object in one direction or detecting a proximity object in a plurality of directions;
transmitting ultrasonic signals to each direction when detecting a manner of approaching an object in a plurality of directions; wherein: the ultrasonic signals are transmitted to all directions by adopting a mode that one ultrasonic sensor which transmits in all directions transmits ultrasonic signals, a mode that a plurality of ultrasonic sensors which transmit in all directions are arranged in the mobile equipment to transmit ultrasonic signals, or the ultrasonic signals are transmitted to the periphery of the mobile equipment by one omnidirectional antenna which transmits the ultrasonic signals to all directions at regular time.
Further, the manner of outputting the corresponding prompt information by the prompt module includes: a voice prompt mode, an interface prompt mode or a backlight prompt mode.
Further, the interface prompting method further comprises the following steps: and popping up a floating window on the screen of the mobile equipment, and displaying prompt information in the floating window.
The invention provides a method and a device for monitoring an approaching object by utilizing mobile equipment. By giving the mobile equipment the function of monitoring the object close to the mobile equipment, the mobile equipment user can be reminded of external objects with potential threats existing in the surrounding environment at any time, and the mobile equipment user can be flexibly prompted in various forms. The possibility of robbery to the mobile device and the possibility of the user of the mobile device hitting a foreign object is greatly reduced.
Drawings
Fig. 1 is a flow chart of an implementation of a method for monitoring an approaching object in one direction using a mobile device according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for determining whether there are other objects approaching the mobile device besides the user of the mobile device according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating an implementation of another method for determining whether there are other objects approaching the mobile device besides the user of the mobile device according to the first embodiment of the present invention;
FIG. 4 is a flow chart of an implementation of a method for monitoring an approaching object in multiple directions using a mobile device according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for monitoring an approaching object by using a mobile device according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
A first embodiment of the invention is shown in fig. 1.
Fig. 1 is a flow chart 100 of a method for monitoring an approaching object in one direction by using a mobile device according to a first embodiment of the present invention.
In this embodiment, the direction of monitoring is in front of the mobile device.
The implementation flow 100 is detailed as follows:
step 101, judging whether other objects approaching the mobile equipment exist in front of the mobile equipment except the user of the mobile equipment: if yes, go to step 102; otherwise, step 101 is performed.
In this embodiment, by transmitting an ultrasonic signal to the front of the mobile device, it is determined whether or not another object is present in front of the mobile device.
The specific process is as follows: the mobile device transmits an ultrasonic signal forward, the ultrasonic signal is transmitted in the air, and when meeting an obstacle in front of the mobile device, the ultrasonic signal is reflected back immediately, and when receiving a feedback signal of the transmitted ultrasonic signal, other objects in front of the mobile device can be judged.
In this embodiment, a method for determining whether there is another object approaching the mobile device except for the user of the mobile device is shown in fig. 2.
In fig. 2, step 101 may further include steps 1011-1016.
Step 1011, after sending the first detection signal, determining whether a feedback signal of the first detection signal is detected: if yes, go to step 1012; otherwise, step 1011 is performed.
Step 1012, calculate a first distance value.
In this embodiment, the method for calculating the first distance value according to the first detection signal and the feedback signal of the first detection signal includes:
transmitting a first probe signal at time t 1;
receiving a feedback signal of the first detection signal at time t 2;
the propagation speed of the ultrasonic signal in the air is v;
then: the first distance value s1 is:
step 1013, after a period of time, after sending the second detection signal, determining whether a feedback signal of the second detection signal is detected: if yes, go to step 1014; otherwise, step 1011 is performed.
In the present embodiment, the period of time of the interval is set to 1 s.
And 1014, calculating a second distance value.
In this embodiment, the method for calculating the second distance value according to the second detection signal and the feedback signal of the first detection signal is as follows:
transmitting a second probe signal at time t 3;
receiving a feedback signal of the second detection signal at time t 4;
the propagation speed of the ultrasonic signal in the air is v;
then: the second distance value s2 is:
step 1015, determine whether the second distance value s2 is smaller than the first distance value s1 and the second distance value s2 is greater than a predetermined threshold: if yes, go to step 1016; otherwise, step 1011 is performed.
In this embodiment, a threshold value of 30cm is set, and step 1016 is executed assuming that the calculated first distance value is 3m and the second distance value is 2.3 m.
Step 1016, determine that there are other objects approaching the mobile device, except the user of the mobile device.
In a preferred implementation of this embodiment, another method for determining whether there is another object approaching the mobile device, except the user of the mobile device, is shown in fig. 3.
In fig. 3, step 101 may further include steps 1011 '-1016'.
Step 1011', sending the first probing signal, and after a predetermined threshold time interval, determining whether a feedback signal of the first probing signal is detected: if yes, go to step 1012'; otherwise, step 1011' is performed.
In the present embodiment, one predetermined threshold time is set to 50 ms. The mobile device sends a first detection signal, and after an interval of 50ms, the mobile device starts to detect whether a feedback signal of the first detection signal is received.
Step 1012', calculate a first distance value.
In the present embodiment, the first distance value s1 is calculated based on the first detection signal and the feedback signal of the first detection signal.
Step 1013', sending the second detection signal at a time interval, and after a predetermined threshold time interval, determining whether a feedback signal of the second detection signal is detected: if yes, go to step 1014'; otherwise, step 1011' is performed.
In this embodiment, after an interval of 1s, the mobile device sends the second sounding signal, and after an interval of 50ms, the mobile device starts to detect whether the feedback signal of the second sounding signal is received.
Step 1014', a second distance value is calculated.
In the present embodiment, the second distance value s2 is calculated based on the second detection signal and the feedback signal of the second detection signal.
Step 1015' determines whether the second distance value is less than the first distance value: if yes, go to step 1016'; otherwise, step 1011' is performed.
Step 1016', determines that there are other objects approaching the mobile device, other than the user of the mobile device.
And 102, calculating the distance and/or the speed of the other close objects relative to the mobile equipment.
In this embodiment, the second distance value s2 calculated in step 101 is the distance between the other object and the mobile device.
In this embodiment, if the interval time between the sending of the first sounding reference signal and the sending of the second sounding reference signal is set to t, then: said other(s)The speed of the object relative to the mobile device is:
and 103, outputting corresponding prompt information.
In the present embodiment, a floating window pops up on the screen of the mobile device, and the prompt information is displayed in the floating window. The prompt is the distance and speed of the approaching object relative to the mobile device.
And refreshing the prompt information every 2s, namely detecting whether the approaching object exists or not every 2s and displaying the distance and the speed of the approaching object relative to the mobile equipment.
The embodiment solves the problem of detecting whether an object approaching the mobile equipment user exists in the front of the mobile equipment by means of sending the detection signal to the front of the mobile equipment, and achieves the effect of reminding the mobile equipment user whether an external object with potential threat exists in the front.
A second embodiment of the invention is shown in fig. 4.
Fig. 4 is a flowchart of an implementation of a method for monitoring an approaching object in multiple directions by using a mobile device according to a second embodiment of the present invention.
The implementation flow 400 is detailed as follows:
step 401, determining whether there are other objects approaching the mobile device around the mobile device except the user of the mobile device: if yes, go to step 402; otherwise, step 401 is performed.
In this embodiment, the mobile device transmits ultrasonic signals in various directions.
Wherein: the ultrasonic signals can be transmitted by using one ultrasonic sensor emitting omni-directionally to transmit ultrasonic signals in all directions, by installing a plurality of ultrasonic sensors emitting directionally in a plurality of directions of the mobile device, or
The ultrasonic signals are transmitted to the periphery of the mobile device through an omnidirectional antenna which transmits the ultrasonic signals to all directions at regular time.
In a preferred embodiment of this embodiment, an omni-directionally emitting ultrasonic sensor is used to transmit ultrasonic signals in all directions.
In the present embodiment, other objects, except for the user of the mobile device, which are closest to the mobile device in the vicinity of the mobile device and which are close to the mobile device are detected.
The specific method comprises the following steps: the mobile device transmits the first sounding signal in all directions, and after a predetermined threshold time, for example, 500ms, the mobile device starts to detect whether the feedback signal of the first sounding signal is received. There may be more than one other object around the mobile device, there may be more than one feedback signal for the first probe signal, and the mobile device records only the time of arrival of the first received feedback signal and calculates the first range value s1 based on the first probe signal and the first received feedback signal for the first probe signal.
After a time interval, for example: 1s, the mobile device transmits a second probe signal in each direction, and after a predetermined threshold time, for example 500ms, the mobile device starts to detect whether a feedback signal of the second probe signal is received, the mobile device records the arrival time of the first received feedback signal of the second probe signal, and calculates a second distance value s2 according to the second probe signal and the first received feedback signal of the second probe signal.
And if the second distance value is smaller than the first distance value, judging whether other objects approaching the mobile equipment exist around the mobile equipment except the user of the mobile equipment.
Step 402, calculating the distance and/or speed of the closest approaching object to the mobile device relative to the mobile device.
In this embodiment, the second distance value s2 calculated in step 401 is the distance between the other object closest to the mobile device and the mobile device; setting the interval time for transmitting the first detection signal and the second detection signal as t, then: the speed of the other objects closest to the mobile device relative to the mobile device is as follows:
and step 403, outputting corresponding prompt information.
In another preferred embodiment of this embodiment, a plurality of directionally-emitting ultrasonic sensors are installed in a plurality of directions of the mobile device to transmit ultrasonic signals.
For example, one ultrasonic sensor may be attached to each of the front, rear, left, and right of the mobile device to determine whether or not there is an approaching object in each of the four directions.
When there is more than one approaching object, one or more prompt messages of the approaching object can be displayed in a floating window popped up on the screen of the mobile device according to the sequence from small to large of the distance of the approaching object relative to the mobile device or the sequence from large to small of the speed of the approaching object relative to the mobile device.
The embodiment solves the problem of detecting whether objects close to the mobile equipment user exist around the mobile equipment by means of sending detection signals to all directions, and achieves the effect of reminding the mobile equipment user whether external objects with potential threats exist in all directions.
A third embodiment of the invention is shown in fig. 5.
Fig. 5 is a schematic structural diagram of an apparatus for monitoring an approaching object by using a mobile device according to a third embodiment of the present invention. The apparatus 500 for monitoring an approaching object using a mobile device according to the present embodiment includes: a detection module 501, a calculation module 502 and a display module 503.
A detection module 501, configured to determine whether there are other objects approaching the mobile device, except for a user of the mobile device;
a calculating module 502, configured to calculate a distance and/or a speed of the other object approaching the mobile device, relative to the mobile device, detected by the detecting module 501;
and the prompt module 503 is configured to output corresponding prompt information according to the calculation result of the calculation module 502.
In this embodiment, the detection module 501 is configured to respectively arrange an infrared sensor with an emission direction of 180 degrees at the front and the back of the mobile device, where the infrared sensor transmits infrared rays to the mobile device in each direction to detect whether there is an object approaching the mobile device around the mobile device and out of the user of the mobile device.
In a preferred implementation manner of this embodiment, the detecting module 501 further includes: a probe signal transmitting module (not shown), a feedback signal receiving module (not shown), a calculating and judging module (not shown), and a timing control module (not shown), wherein:
the timing control module is used for sending a control signal and controlling the starting of the detection signal sending module and the feedback signal receiving module;
the detection signal sending module is used for sending a detection signal according to the received control signal;
a feedback signal receiving module, configured to receive a feedback signal of the detection signal sent by the detection signal sending module;
and the calculating and judging module is used for judging whether other objects approaching the mobile equipment exist except the user of the mobile equipment or not according to the detection signal and the feedback signal.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A method of monitoring an approaching object with a mobile device, the method comprising:
s1, determining whether there is any other object approaching the mobile device except the user of the mobile device: if yes, go to step S2; otherwise, go to step S1;
s2, calculating the distance and/or the speed of the other close objects relative to the mobile equipment;
s3, outputting corresponding prompt information according to the calculation result of the step S2;
the step S1 of determining whether there is another object approaching the mobile device other than the user of the mobile device includes:
s11, the mobile device sends a first detection signal, if a first feedback signal of the first detection signal is detected, a first distance value is calculated according to the first detection signal and the first feedback signal, and step S12 is executed; otherwise, go to step S11;
s12, sending the second probing signal again by the mobile device at a time interval, if detecting a second feedback signal of the second probing signal, calculating a second distance value according to the second probing signal and the second feedback signal, and performing step S13; otherwise, go to step S11;
s13, if the second distance value is smaller than the first distance value and larger than a preset threshold value, judging that other objects except the user of the mobile device and approaching the mobile device exist;
or,
the step S1 of determining whether there is another object approaching the mobile device other than the user of the mobile device includes:
s11 ', the mobile device sends a first probing signal, after a predetermined threshold time interval, if a first feedback signal of the first probing signal is detected, calculates a first distance value according to the first probing signal and the first feedback signal, and performs step S12'; otherwise, step S11' is executed;
s12 ', after a certain time interval, the mobile device sends the second probing signal again, and after a predetermined threshold time interval, if the second feedback signal of the second probing signal is detected, calculates a second distance value according to the second probing signal and the second feedback signal, and executes step S13'; otherwise, step S11' is executed;
s13', if the second distance value is smaller than the first distance value, judging that other objects approaching the mobile equipment except the user of the mobile equipment exist;
the probe signal comprises an ultrasonic probe signal;
the manner of detecting the approaching object includes: a manner of detecting a proximity object in one direction or a manner of detecting a proximity object in a plurality of directions; when detecting a manner of approaching an object in a plurality of directions, the mobile device transmits an ultrasonic signal to each direction; wherein: the ultrasonic signals are transmitted to all directions by adopting a mode that one ultrasonic sensor which transmits in all directions transmits ultrasonic signals, a mode that a plurality of ultrasonic sensors which transmit in all directions are arranged in the mobile equipment to transmit ultrasonic signals, or the ultrasonic signals are transmitted to the periphery of the mobile equipment by one omnidirectional antenna which transmits the ultrasonic signals to all directions at regular time.
2. The method of claim 1, wherein the step S3, according to the calculation result of the step S2, comprises: a voice prompt mode, an interface prompt mode or a backlight prompt mode.
3. The method for monitoring an approaching object by using a mobile device according to claim 2, wherein the manner of the interface prompt further comprises: and popping up a floating window on the screen of the mobile equipment, and displaying prompt information in the floating window.
4. An apparatus for monitoring an approaching object with a mobile device, the apparatus comprising:
the detection module is used for judging whether other objects approaching the mobile equipment exist except the user of the mobile equipment;
the calculating module is used for calculating the distance and/or the speed of the other objects which are close to the mobile equipment and are detected by the detecting module relative to the mobile equipment;
the prompting module is used for outputting corresponding prompting information according to the calculation result of the calculation module;
the detection module is specifically configured to: sending a first detection signal, and calculating a first distance value according to the first detection signal and a first feedback signal when the first feedback signal of the first detection signal is detected; after the first feedback signal is detected, sending a second detection signal again at intervals, and when a second feedback signal of the second detection signal is detected, calculating a second distance value according to the second detection signal and the second feedback signal; when the second distance value is smaller than the first distance value and is larger than a preset threshold value, judging that other objects approaching the mobile equipment except the user of the mobile equipment exist;
or, the detection module is specifically configured to: sending a first detection signal, and after a preset threshold time interval, when a first feedback signal of the first detection signal is detected, calculating a first distance value according to the first detection signal and the first feedback signal; after the first feedback signal is detected, sending the second detection signal again at a certain interval, and after a preset threshold time, when the second feedback signal of the second detection signal is detected, calculating a second distance value according to the second detection signal and the second feedback signal; when the second distance value is smaller than the first distance value, judging that other objects which are close to the mobile equipment except the user of the mobile equipment exist;
the probe signal comprises an ultrasonic probe signal;
the detection module is used for: detecting a proximity object in one direction or detecting a proximity object in a plurality of directions;
transmitting ultrasonic signals to each direction when detecting a manner of approaching an object in a plurality of directions; wherein: the ultrasonic signals are transmitted to all directions by adopting a mode that one ultrasonic sensor which transmits in all directions transmits ultrasonic signals, a mode that a plurality of ultrasonic sensors which transmit in all directions are arranged in the mobile equipment to transmit ultrasonic signals, or the ultrasonic signals are transmitted to the periphery of the mobile equipment by one omnidirectional antenna which transmits the ultrasonic signals to all directions at regular time.
5. The apparatus of claim 4, wherein the prompting module outputs the corresponding prompting message in a manner of: a voice prompt mode, an interface prompt mode or a backlight prompt mode.
6. The apparatus for monitoring approaching objects by using mobile device according to claim 5, wherein the manner of the interface prompt further comprises: and popping up a floating window on the screen of the mobile equipment, and displaying prompt information in the floating window.
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| CN201717908U (en) * | 2010-05-12 | 2011-01-19 | 康佳集团股份有限公司 | Mobile terminal |
| CN102523323A (en) * | 2011-12-27 | 2012-06-27 | 东莞华贝电子科技有限公司 | Mobile terminal and barrier alarm method |
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| US10325508B2 (en) | 2016-12-12 | 2019-06-18 | Nxp B.V. | Apparatus and associated methods for collision avoidance |
| CN109040442A (en) * | 2018-07-25 | 2018-12-18 | 北京小米移动软件有限公司 | Forbid display methods, device and terminal |
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| CN103152483A (en) | 2013-06-12 |
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