CN108364440A - Remind method and device of the children far from button in automobile - Google Patents
Remind method and device of the children far from button in automobile Download PDFInfo
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- CN108364440A CN108364440A CN201810202138.8A CN201810202138A CN108364440A CN 108364440 A CN108364440 A CN 108364440A CN 201810202138 A CN201810202138 A CN 201810202138A CN 108364440 A CN108364440 A CN 108364440A
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- Prior art keywords
- children
- button
- image
- automobile
- distance
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Classifications
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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
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
- G06T7/33—Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
Abstract
Present invention is disclosed a kind of prompting method and device of the children far from button in automobile, and wherein method includes step：Acquire the image of children's wrist front end；Judge in described image whether to include preset button；If so, obtaining and at a distance from button, generating distance value in the image；Judge whether the distance value is less than distance threshold；If so, sending out alarm signal, the alarm signal includes sending out vibration information and/or making a sound.The hand that this method can detect children by the child mobile phone being worn in children's wrist when being less than certain value at a distance from button, reminds children not touch, children can effectively be avoided to remove the button on touching automobile at a distance from the button on automobile.
Description
Technical field
The present invention relates to a kind of communication means, specially a kind of prompting method and dress of the children far from button in automobile
It sets.
Background technology
In life, with gradually increasing for each family's car, car trip is often taken by each family.Car has very
Multifunctional button is exposed outside.It since children lack dangerous consciousness, may go disorderly to touch function button out of curiosity, and if at this time just
Parent has little time to prevent, this may give entire family to make tragedy.But currently, children disorderly touch function button in order to prevent, less
Number function button can not only touch function button to protect children by modes such as child's locks, or by parent prompting children.
But functions of child lock parent is also possible to forget to open and use.Similarly, parent can only around children and see its may
When dangerous, children are reminded.Both methods cannot all play the effect for ensuring children's personal safety at any time.
Invention content
The main object of the present invention is to provide a kind of prompting method and device of the children far from button in automobile, when children's
When finger will be close to the button in automobile, sends out alerting signal and children not go to touch.
The present invention proposes a kind of prompting method of the children far from button in automobile, including step：
Acquire the image of children's wrist front end；
Judge in described image whether to include preset button；
If so, obtaining and at a distance from button, generating distance value in the image；
Judge whether the distance value is less than distance threshold；
If so, sending out alarm signal, the alarm signal includes sending out vibration information and/or making a sound.
Further, described obtain includes with the step of at a distance from button, generating distance value in the image：
Extract the characteristic point in described image；
Characteristic point in image is subjected to space three-dimensional reconstruct, obtains the three dimensional space coordinate of the characteristic point, and then obtain
To the three-dimensional information of the image；
According to the three-dimensional information of described image, children's wrist is calculated at a distance from the button, generates distance value.
Further, if the judgement distance value includes the step of being less than distance threshold, send out alarm signal：
If the distance value is less than first threshold, the signal of vibrations wrist-watch is sent out；
If the distance value is less than second threshold, sends out the signal of vibrations wrist-watch and send out alerting signal to user terminal.
Further, include before the step of image of acquisition children's wrist front end：
Judge children whether close to automobile；
If so, sending out the order of acquisition image.
Further, the judgment method of described the step of whether judging in described image comprising preset button is：Image
Point matching process or edge matching method or similarity based method.
The present invention also proposes a kind of prompting device of the children far from button in automobile, including：
Acquisition module, the image for acquiring children's wrist front end；
Key-press module is judged, for judging in described image whether to include preset button；
Distance value module, if for including preset button in described image, obtain in the image at a distance from button,
Generate distance value；
Spacing module is judged, for judging whether the distance value is less than distance threshold；
Alarm module sends out alarm signal if being less than distance threshold for the distance value, and the alarm signal includes hair
Go out vibration information and/or makes a sound.
Further, the distance value module includes：
Feature dot element, for extracting the characteristic point in described image；
Three-dimensionalreconstruction unit obtains the three of the characteristic point for the characteristic point in image to be carried out space three-dimensional reconstruct
Dimension space coordinate, and then obtain the three-dimensional information of the image；
Children's wrist is calculated at a distance from the button for the three-dimensional information according to described image apart from value cell,
Generate distance value.
Further, the alarm module includes：
First alarm unit sends out the signal of vibrations wrist-watch if being less than first threshold for the distance value；
Second alarm unit, if being less than second threshold for the distance value, the signal and sending out for sending out vibrations wrist-watch carries
Signal wake up to user terminal.
Further, the prompting device of the children far from button in automobile further includes：
Judge close to module, for judging children whether close to automobile；
If command module sends out the order of acquisition image for obtaining children close to automobile.
Further, the judgment method of described the step of whether judging in described image comprising preset button is：Image
Point matching process or edge matching method or similarity based method.
Compared with prior art, the beneficial effects of the invention are as follows：It is detected by the child mobile phone being worn in children's wrist
The hand of children is very convenient at a distance from the button on automobile, when distance is less than certain value, sends out signal and reminds children not
It goes to touch.Existing product is used, uncomfortable feeling will not be brought to children.And judgement children have touched vapour
Vehicle button can phone custody of child people, children is made preferably to be protected at once.Utilize the bluetooth built in child mobile phone
Detection children just open camera close to after automobile, very practical, make full use of the function of child mobile phone, reduce camera shooting
The invalid usage time of head.
Description of the drawings
Fig. 1 is the prompting step schematic diagram of the children far from the method for button in automobile of one embodiment of the invention；
Fig. 2 is the prompting step schematic diagram of the children far from the method for button in automobile of one embodiment of the invention；
Fig. 3 is the prompting step schematic diagram of the children far from the method for button in automobile of one embodiment of the invention；
Fig. 4 is the prompting step schematic diagram of the children far from the method for button in automobile of one embodiment of the invention；
Fig. 5 is the prompting structural schematic diagram of the children far from the device of button in automobile of one embodiment of the invention；
Fig. 6 is the prompting structural schematic diagram of the children far from the device of button in automobile of one embodiment of the invention；
Fig. 7 is the prompting structural schematic diagram of the children far from the device of button in automobile of one embodiment of the invention；
Fig. 8 is the prompting structural schematic diagram of the children far from the device of button in automobile of one embodiment of the invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, the prompting method of the children far from button in automobile of one embodiment of the invention, including step are proposed：
S3, the image for acquiring children's wrist front end；
S4, judge in described image whether to include preset button；
S5, if so, obtain in the image at a distance from button, generation distance value；
S6, judge whether the distance value is less than distance threshold；
S7, if so, send out alarm signal, the alarm signal includes sending out vibration information and/or making a sound.
In the present embodiment, the image of acquisition children's wrist front end, can be that children's wrist-watch, child mobile phone etc. are worn on children
Intelligent wearable device in wrist；Such as child mobile phone.The child mobile phone is in wrist strap pattern, has processor on child mobile phone, also
It is provided with SIM card, network can be connected and sent information on other-end.It is provided with camera on the child mobile phone, the camera shooting
Head is arranged in the side of child mobile phone, and children correctly wear the child mobile phone, and camera acquires front along the direction of the back of the hand
Image is suitable for acquiring the thing that children capture touching.Camera on child mobile phone acquires the image of children's wrist front end,
The image apart from the closer thing of children's hand is acquired, then processor judges whether there is preset button in image,
In preset button be exactly button on automobile, such as door lock button, ABS anti-locks button, parking brake button.The judgement of processor
Whether there is preset button in image, can be the picture recognition module of processor itself, can also be processor transmission should
Whether image judges in image to include preset button to given server by receiving the judgement result of server.Its
In, processor sends image to server, exactly passes through the SIM card Connection Service device on child mobile phone.If child mobile phone
Processor judge have preset button it is necessary to judge at a distance from the button in image, the range sensor on child mobile phone
The distance of objects in front is acquired, objects in front is the image of children's wrist front end of camera shooting just now.Specific purpose is
It obtains at a distance from front preset button, then generates distance value.Specifically, being a laser sensor.Laser sensor is examined
The distance of objects in front is measured, distance value is generated.It obtains and at a distance from button, can also be and established using camera in the image
Three dimensions, calculate within this space child mobile phone current location in image at a distance from button, specifically, camera is taken pictures,
Processor extracts characteristic point according to the photo of shooting, carries out space three-dimensional reconstruct according to characteristic point, i.e., by the two-dimension picture of shooting
It is converted into three-dimensional picture, effective imaging model is established by camera calibration, according to the inside and outside parameter of video camera, in this way
The three-dimensional point coordinate in space can be obtained in conjunction with the matching result of image, to achieve the purpose that carry out three-dimensional reconstruction, built
At three dimensions, then calculates current location in three dimensions and generate distance value at a distance from button.The processing of child mobile phone
Device gets the distance value, and distance threshold then carried with child mobile phone or user setting is compared, if distance value
Less than distance threshold, illustrate that the quick-moving of children will encounter button, then child mobile phone sends out alarm signal, reminds the hand of children not
It to take care again toward extension.The distance threshold of above-mentioned user setting is configured according to the hand size of children.Mobile phone
Vibrator, which is generated using eccentric in rotary motion, shakes the work of this principle, and child mobile phone is connected to after incoming call can be with
Send out vibrations.Loud speaker is the electronic equipment that can be made a sound.It is the electronic unit that child mobile phone comes with.When children's hand
Machine judgement sends out vibrations and/or sound when being got too close to button at a distance from, remind children should not again handle toward protracting.Cause
Child mobile phone is to be worn in the wrist of children, therefore children are sure receives vibration signal and voice signal, to no longer
By hand to extension.
With reference to Fig. 2, further, the acquisition includes with the step of at a distance from button, generating distance value in the image：
Characteristic point in S51, extraction described image；
S52, the characteristic point in image is subjected to space three-dimensional reconstruct, obtains the three dimensional space coordinate of the characteristic point, into
And obtain the three-dimensional information of the image；
S53, the three-dimensional information according to described image calculate children's wrist at a distance from the button, generate distance
Value..
In the present embodiment, characteristic point refers to the point or the curvature on image border that acute variation occurs for gray value of image
Larger point (intersection point at i.e. two edges).Image characteristic point has particularly significant in the image matching algorithm of feature based point
Effect.Image characteristic point can reflect image substantive characteristics, can be identified for that target object in image.Pass through the matching of characteristic point
It can complete the matching of image.Feature point extraction is come out, child mobile phone is allow to identify the specific location of button in image.
Space three-dimensional reconstruct is carried out according to characteristic point, i.e., the two-dimension picture of shooting is converted into three-dimensional picture, it is possible to understand that at structure
One three-dimensional coordinate system, each image are made of many points in the three-dimensional coordinate system, each point is
One coordinate, the coordinate value of three-dimensional information, that is, each picture.According to three-dimensional information, you can to calculate the camera shooting on children's wrist-watch
Head at a distance from button, be multiplied by the parameter-embedded of the camera of children's wrist-watch with coordinate difference, you can obtain distance value in picture.
Because children's wrist-watch is worn in children's wrist, thus camera be equal at a distance from button children's wrist and button away from
From.
With reference to Fig. 3, further, if the step of judgement distance value is less than distance threshold, sends out alarm signal
Including：
If S71, the distance value are less than first threshold, the signal of vibrations wrist-watch is sent out；
If S72, the distance value are less than second threshold, send out the signal of vibrations wrist-watch and send out alerting signal to user's end
End.
In the present embodiment, distance value is for expressing the hand of children at a distance from button in automobile.First threshold is to indicate
The quick-moving of children will touch, and second threshold is to indicate that the hand of children has touched.Specifically, first threshold is 20 lis
Rice, children's wrist-watch only have 20 centimetres apart from button, then cell phone vibrator shakes, and children is reminded past again not stretch out one's hand.Second threshold
Value is 10 centimetres, and children's wrist-watch only has 10 centimetres apart from button, and the hand of children has closely even touched very much apart from button
, then cell phone vibrator continue to shake, shaken with higher frequency, while sending a signal to user terminal, remind user indicate youngster
Child is likely to be encountered the button in automobile, there is security risk, and user is allowed to handle.
With reference to Fig. 4, further, the step of the image of acquisition children's wrist front end before include：
S1, judge children whether close to automobile；
S2, if so, send out acquisition image order.
In the present embodiment, judge that children whether close to automobile, there can be many modes.For example, there is camera on automobile, clap
The face for taking the photograph children, is then sent to child mobile phone, to get children close to automobile.Alternatively, when on child mobile phone
There is blue-tooth device to be connected to the bluetooth of automobile, children can also be got close to automobile.It is connect when child mobile phone gets children
Nearly automobile, is issued by the order of acquisition image, opens camera.Camera can be made to reduce unnecessary work, section in this way
Save the power supply of child mobile phone.
Further, judgment method the step of whether judgement in described image comprising preset button is image
Point matching process or edge matching method or similarity based method.
In the present embodiment, image matching method refers to by presentation content, feature, structure, relationship, texture and gray scale etc.
Correspondence, the analysis of similitude and consistency seeks similar view mesh calibration method, such as in the door lock button of automobile,
It is general to be matched characterized by the red small lugs there are one red small lugs above.Edge matching method is with object
The edge of body is matched, such as in the electronics parking brake button of automobile, generally can be there are one the mark of " P ", and edge matching is just
Be in detection image whether the lines containing P patterns.
In one embodiment, children wear child mobile phone, which is to be worn on children in watch style
Wrist on.Children walk close to automobile, and the blue-tooth device of child mobile phone is connected to the automobile, and judgement children are close apart from automobile
, just control camera and open, acquire the image in front.After acquiring image, image is sent to service by the network of SIM card
Then the picture that child mobile phone is sent is compared by device, the preset key image of server calls with preset key image,
See whether the picture received has preset key image, if so, being returned to the signal of " having " to child mobile phone.Child mobile phone
The signal for receiving " having " that server is sent, decides that there is button in image, starts laser sensor, measurement and objects in front
Distance.When detecting that the distance of objects in front is less than 20 centimetres, the vibrator vibrations in child mobile phone, while youngster are just controlled
The loud speaker of virgin mobile phone sends out the sound of " not touch ", reminds the hand of children toward retraction, should not be again toward extension.When detecting
The distance of objects in front is less than 10 centimetres, and control vibrator shakes, outside loud speaker sounding reminding, while also control passes through SIM
Card sends a signal to the mobile phone of user, and children is reminded to touch interior button.
With reference to Fig. 5, the present invention also proposes a kind of prompting device of the children far from button in automobile, including：
Acquisition module 3, the image for acquiring children's wrist front end；
Key-press module 4 is judged, for judging in described image whether to include preset button；
Distance value module 5, if for including preset button in described image, obtain with the image in button away from
From generation distance value；
Spacing module 6 is judged, for judging whether the distance value is less than distance threshold；
Alarm module 7 sends out alarm signal, the alarm signal includes if being less than distance threshold for the distance value
It sends out vibration information and/or makes a sound.
In the present embodiment, acquisition module 3 acquires the image of children's wrist front end, specifically, acquisition module 3 can be children
Wrist-watch, child mobile phone etc. are worn on the camera of the intelligent wearable device in children's wrist；Such as the camera on child mobile phone
0.Child mobile phone is in wrist strap pattern, has processor on child mobile phone, is additionally provided with SIM card, can connect network and send information to
On other-end.It is provided with camera on the child mobile phone, which is arranged in the side of child mobile phone, and children correctly wear
The child mobile phone, acquisition module 3 control camera along the image in the direction acquisition front of the back of the hand, are suitable for acquiring children's crawl
The thing of touching.Acquisition module 3 acquires the image of children's wrist front end, that is, acquires the figure apart from the closer thing of children's hand
Then picture judges that key-press module 4 judges whether there is preset button in image, wherein preset button be exactly on automobile by
Key, such as door lock button, ABS anti-locks button, parking brake button.Judge whether to have in the judgement image of key-press module 4 default
Button, can judge key-press module 4 using image-recognizing method to judge, can also be judge key-press module 4 send should
Whether image judges in image to include preset button to given server by receiving the judgement result of server.Its
In, judge that key-press module 4 sends image to server, exactly passes through the SIM card Connection Service device on child mobile phone.If sentenced
Disconnected key-press module 4 judges have preset button it is necessary to judge the judgement of spacing module 6 at a distance from the button in image, first away from
It is controlled with a distance from the range sensor acquisition objects in front on child mobile phone from value module 5, objects in front i.e. clapped just now by camera
The image for the children's wrist front end taken the photograph.Specific purpose is obtained at a distance from front preset button, then distance value module 5
Generate distance value.Specifically, range sensor is a laser sensor.Distance value control laser sensor detects front object
The distance of body generates distance value.Wherein, distance value module 5 obtains and at a distance from button, can also be utilization camera shooting in the image
Head establishes three dimensions, calculate within this space child mobile phone current location in image at a distance from button, specifically, camera
It takes pictures, processor extracts characteristic point according to the photo of shooting, carries out space three-dimensional reconstruct according to characteristic point, i.e., by the two dimension of shooting
Picture is converted into three-dimensional picture, and effective imaging model is established by camera calibration, according to the inside and outside parameter of video camera,
Thus the three-dimensional point coordinate in space can be obtained in conjunction with the matching result of image, to reach the mesh for carrying out three-dimensional reconstruction
, three dimensions is built up, current location in three dimensions is then calculated and generates distance value at a distance from button.Judge distance
Module 6 receives the distance value, and distance threshold then carried with child mobile phone or user setting is compared, if distance
Value is less than distance threshold, illustrates that the quick-moving of children will encounter button, then alarm module 7 sends out alarm signal, reminds children's
Hand is not taken care again toward extension.The distance threshold of above-mentioned user setting is configured according to the hand size of children.
Cell phone vibrator is to generate to shake the work of this principle in rotary motion using eccentric, and child mobile phone is connected to incoming call
After can send out vibrations.Loud speaker is the electronic equipment that can be made a sound.It is the electronic unit that child mobile phone comes with.When
Child mobile phone judgement sends out vibrations and/or sound when being got too close to button at a distance from, remind children should not again handle toward protracting
.Because child mobile phone is to be worn in the wrist of children, therefore children are sure receives vibration signal and voice signal, to
No longer by hand to extension.
With reference to Fig. 6, further, the distance value module 5 includes：
Feature dot element 51, for extracting the characteristic point in described image；
Three-dimensionalreconstruction unit 52 obtains the characteristic point for the characteristic point in image to be carried out space three-dimensional reconstruct
Three dimensional space coordinate, and then obtain the three-dimensional information of the image；
Apart from value cell 53, for the three-dimensional information according to described image, calculate children's wrist and the button away from
From generation distance value.
In the present embodiment, characteristic point refers to the point or the curvature on image border that acute variation occurs for gray value of image
Larger point (intersection point at i.e. two edges).Image characteristic point has particularly significant in the image matching algorithm of feature based point
Effect.Image characteristic point can reflect image substantive characteristics, can be identified for that target object in image.Pass through the matching of characteristic point
It can complete the matching of image.Feature dot element 51 comes out feature point extraction, allow child mobile phone identify in image by
The specific location of key.Three-dimensionalreconstruction unit 52 carries out space three-dimensional reconstruct according to characteristic point, i.e., converts the two-dimension picture of shooting
At three-dimensional picture, it is possible to understand that at one three-dimensional coordinate system of structure, each image, which is in the three-dimensional coordinate system, is
It is made of many points, each point is a coordinate, the coordinate value of three-dimensional information, that is, each picture.Apart from value cell 53
According to three-dimensional information, you can to calculate the camera on children's wrist-watch and at a distance from button, be multiplied by with coordinate difference in picture
The camera of virgin wrist-watch it is parameter-embedded, you can obtain distance value.Because children's wrist-watch is worn in children's wrist, therefore take the photograph
As being equal to children's wrist at a distance from button at a distance from head and button.
With reference to Fig. 7, further, the alarm module 7 includes：
First alarm unit 71 sends out the signal of vibrations wrist-watch if being less than first threshold for the distance value；
Second alarm unit 72 sends out the signal of vibrations wrist-watch and sends out if being less than second threshold for the distance value
Alerting signal is to user terminal.
In the present embodiment, distance value is for expressing the hand of children at a distance from button in automobile.First threshold is to indicate
The quick-moving of children will touch, and second threshold is to indicate that the hand of children has touched.Specifically, first threshold is 20 lis
Rice, children's wrist-watch only have 20 centimetres apart from button, then the vibrations of the first alarm unit 71 control cell phone vibrator, remind children should not
It is past again to stretch out one's hand.Second threshold is 10 centimetres, and children's wrist-watch only has 10 centimetres apart from button, the hand of children apart from button very
Close even to have touched, then the second alarm unit 72 control cell phone vibrator continues to shake, or is shaken with higher frequency,
It sends a signal to user terminal simultaneously, reminds user to indicate that children are likely to be encountered the button in automobile, there is security risk, allow use
Family is handled.
With reference to Fig. 8, further, the prompting device of the children far from button in automobile further includes：
Judge close to module 1, for judging children whether close to automobile；
If command module 2 sends out the order of acquisition image for obtaining children close to automobile.
In the present embodiment, judge to judge that children whether close to automobile, there can be many modes close to module 1.For example, obtaining
After camera on automobile takes the face of children, to judge children close to automobile.Alternatively, when having indigo plant on child mobile phone
Tooth device is connected to the bluetooth of automobile, can also be to judge to judge children close to automobile close to module 1.When judging close to module
1 to children close to automobile, and command module 2 sends out the order of acquisition image, open camera.Camera can be made to reduce in this way
The power supply of child mobile phone is saved in unnecessary work.
Further, the judgment method of described the step of whether judging in described image comprising preset button is：Image
Point matching process or edge matching method or similarity based method.
In the present embodiment, image matching method refers to by presentation content, feature, structure, relationship, texture and gray scale etc.
Correspondence, the analysis of similitude and consistency seeks similar view mesh calibration method, such as in the door lock button of automobile,
It is general to be matched characterized by the red small lugs there are one red small lugs above.Edge matching method is with object
The edge of body is matched, such as in the electronics parking brake button of automobile, generally can be there are one the mark of " P ", and edge matching is just
Be in detection image whether the lines containing P patterns.
In one embodiment, children wear child mobile phone, which is to be worn on children in watch style
Wrist on.Children walk close to automobile, and the blue-tooth device of child mobile phone is connected to the automobile, then judge to judge youngster close to module 1
Child is close apart from automobile, and command module 2 just open by control camera, acquires the image in front.Acquisition module 3 acquires image
Afterwards, image is sent to server, the preset key image of server calls, then by child mobile phone by the network of SIM card
The picture of transmission is compared with preset key image, sees whether the picture received has preset key image, if so,
Judgement key-press module 4 of the signal being returned to child mobile phone.Judge that key-press module 4 receives " having " that server is sent
Signal decides that there is button in image, and distance value module 5 starts laser sensor, measures at a distance from objects in front.Work as detection
Distance to objects in front is less than 20 centimetres, judges that the judgement of spacing module 6 is that distance value is less than distance threshold, the first warning is single
Member 71 just controls the vibrator vibrations in child mobile phone, and the loud speaker that the first alarm unit 71 controls child mobile phone simultaneously is sent out
The sound of " not touch " reminds the hand of children toward retraction, should not be again toward extension.When detecting that the distance of objects in front is small
In 10 centimetres, the second alarm unit 72 controls vibrator and shakes, outside loud speaker sounding reminding, and the second alarm unit 72 is also controlled simultaneously
System sends a signal to the mobile phone of user by SIM card, and children is reminded to touch interior button.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of prompting method of the children far from button in automobile, which is characterized in that including step：
Acquire the image of children's wrist front end；
Judge in described image whether to include preset button；
If so, obtaining and at a distance from button, generating distance value in the image；
Judge whether the distance value is less than distance threshold；
If so, sending out alarm signal, the alarm signal includes sending out vibration information and/or making a sound.
2. reminding method of the children far from button in automobile as described in claim 1, which is characterized in that the acquisition and the figure
As in button distance, generate distance value the step of include：
Extract the characteristic point in described image；
Characteristic point in image is subjected to space three-dimensional reconstruct, obtains the three dimensional space coordinate of the characteristic point, and then be somebody's turn to do
The three-dimensional information of image；
According to the three-dimensional information of described image, children's wrist is calculated at a distance from the button, generates distance value.
3. as described in claim 1 remind method of the children far from button in automobile, which is characterized in that described in the judgement away from
If the step of being less than distance threshold from value, sending out alarm signal includes：
If the distance value is less than first threshold, the signal of vibrations wrist-watch is sent out；
If the distance value is less than second threshold, sends out the signal of vibrations wrist-watch and send out alerting signal to user terminal.
4. reminding method of the children far from button in automobile as described in claim 1, which is characterized in that before acquisition children's wrist
Include before the step of image at end：
Judge children whether close to automobile；
If so, sending out the order of acquisition image.
5. reminding method of the children far from button in automobile as described in claim 1, which is characterized in that the judgement described image
In whether include preset button the step of judgment method be：Picture point matching process or edge matching method or similar
Degree method.
6. a kind of prompting device of the children far from button in automobile, which is characterized in that including：
Acquisition module, the image for acquiring children's wrist front end；
Key-press module is judged, for judging in described image whether to include preset button；
If distance value module is obtained and at a distance from button, is generated in the image for including preset button in described image
Distance value；
Spacing module is judged, for judging whether the distance value is less than distance threshold；
Alarm module sends out alarm signal if being less than distance threshold for the distance value, and the alarm signal includes sending out shake
It moves information and/or makes a sound.
7. reminding device of the children far from button in automobile as claimed in claim 6, which is characterized in that the distance value module
Including：
Feature dot element, for extracting the characteristic point in described image；
Three-dimensionalreconstruction unit obtains the three-dimensional space of the characteristic point for the characteristic point in image to be carried out space three-dimensional reconstruct
Between coordinate, and then obtain the three-dimensional information of the image；
Children's wrist is calculated at a distance from the button for the three-dimensional information according to described image apart from value cell, is generated
Distance value.
8. reminding device of the children far from button in automobile as claimed in claim 6, which is characterized in that the alarm module packet
It includes：
First alarm unit sends out the signal of vibrations wrist-watch if being less than first threshold for the distance value；
Second alarm unit sends out the signal of vibrations wrist-watch and sends out prompting letter if being less than second threshold for the distance value
Number to user terminal.
9. reminding device of the children far from button in automobile as claimed in claim 6, which is characterized in that further include：
Judge close to module, for judging children whether close to automobile；
If command module sends out the order of acquisition image for obtaining children close to automobile.
10. reminding device of the children far from button in automobile as claimed in claim 6, which is characterized in that described in the judgement
In image whether include preset button the step of judgment method be：Picture point matching process or edge matching method or
Similarity based method.
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