CN109243150A - A kind of vehicle early warning method and terminal - Google Patents
A kind of vehicle early warning method and terminal Download PDFInfo
- Publication number
- CN109243150A CN109243150A CN201811157171.XA CN201811157171A CN109243150A CN 109243150 A CN109243150 A CN 109243150A CN 201811157171 A CN201811157171 A CN 201811157171A CN 109243150 A CN109243150 A CN 109243150A
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- Prior art keywords
- mobile object
- image information
- video image
- vehicle
- moving direction
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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
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
Abstract
The invention discloses a kind of vehicle early warning method and terminal, method includes: the video image information obtained in vehicle preset range；Judge in the video image information with the presence or absence of mobile object；If so, dimension information, movement speed and the moving direction of the mobile object are calculated according to the video image information；The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；According to the danger level alert.Mobile object is judged whether there is near vehicle according to the video image information of vehicle periphery, when judging its size, movement speed and moving direction sometimes, its danger level is determined, according to danger level alert.Effectively driver can be reminded to arouse attention, prevent to collide.
Description
Technical field
The present invention relates to detection technique field more particularly to a kind of vehicle early warning method and terminals.
Background technique
With the development of automobile industry, for traffic safety, automobile data recorder and monitoring usually can be all installed on vehicle
Radar.Existing automobile data recorder, which has the disadvantages that, to be detected to whether object moves, can not be to mobile object
Classification is judged；Can not speed to mobile object and moving direction judge, can not determine warning level；It can not be to prominent
Heat condition (such as pedestrian swarms into suddenly) carries out early warning；Simultaneously early warning can not be monitored to the visual dead angle of driver.It is existing
Monitoring radar has the disadvantages that the record that cannot achieve urgent video and preservation；Can not classification to mobile object, speed and
Moving direction is judged, can not determine warning level；AI algorithm can not be implanted into.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of vehicle early warning method and terminal are provided, it can effectively opposite vehicle
Close mobile object carries out early warning, prevents to collide.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of vehicle early warning method, comprising:
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, being calculated separately to obtain dimension information, the movement speed of the mobile object according to the video image information
Degree and moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
Another technical solution that the present invention uses are as follows:
A kind of vehicle early warning terminal, including processor, memory and storage can transport on a memory and on a processor
Capable computer program,
The processor performs the steps of when executing the computer program
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, being calculated separately to obtain dimension information, the movement speed of the mobile object according to the video image information
Degree and moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
The beneficial effects of the present invention are: mobile object is judged whether there is in vehicle according to the video image information of vehicle periphery
Near, when judging its size, movement speed and moving direction sometimes, its danger level is determined, issued and reported according to danger level
Alert information.Effectively driver can be reminded to arouse attention, prevent to collide.
Detailed description of the invention
Fig. 1 is the flow chart of the vehicle early warning method of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the vehicle early warning terminal of the embodiment of the present invention two.
Label declaration:
100, vehicle early warning terminal；1, processor；2, memory.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: judging whether there is movement according to the video image information in vehicle preset range
Object determines danger level when judging its size, movement speed and moving direction sometimes, issues alarm signal according to danger level
Breath, can remind driver note that preventing to collide.
Please refer to Fig. 1, a kind of vehicle early warning method, comprising:
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, being calculated separately to obtain dimension information, the movement speed of the mobile object according to the video image information
Degree and moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
As can be seen from the above description, the beneficial effects of the present invention are: it is according to the judgement of the video image information of vehicle periphery
It is no to have mobile object near vehicle, when judging its size, movement speed and moving direction sometimes, determine its danger level, root
According to danger level alert.Effectively driver can be reminded to arouse attention, prevent to collide.
Further, when, there are when mobile object, being protected to the video image information in the video image information
It deposits.
Seen from the above description, video image information save convenient for checking when subsequent need.
Further, it whether there is mobile object in the judgement video image information specifically:
Obtain the successive video frames image of at least two frames in the video image information；
Judged in the video image information according to the successive video frames image with the presence or absence of mobile object.
Further, it is described according to the video image information calculate separately to obtain the mobile object dimension information,
Movement speed and moving direction specifically include:
According to the contour curve of the successive video frames image capturing mobile object；
It is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
Obtain motion profile of the mass center in successive video frames image；
The movement speed of mobile object is calculated separately according to the motion profile and judges the moving direction of mobile object.
Seen from the above description, its size may determine that by the contour curve of mobile object, and obtains motive objects
The mass center of body judges that its movement speed and moving direction, judgment method are simple and reliable according to the motion profile of mass center.
Further, the moving direction of mobile object is judged according to the motion profile specifically:
Default observation window；
The maximum height value and minimum height values of the observation window are obtained respectively；
The height value of the mass center of mobile object is obtained according to the motion profile；
When the height value of the mass center is between the maximum height value and minimum height values and when increasing, then move
Object is moved to the direction close to vehicle；
When the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller, then move
Object is moved to the direction far from vehicle.
Seen from the above description, the size for presetting observation window, which can according to need, to be configured, and default observation window is
For early warning observation scope.
Further, it is described according to the danger level alert before further include: it is default according to danger level
Different warning messages.
Seen from the above description, danger level is bigger can be more rapid by warning message setting, driver can be allowed to examine in time
Feel dangerous.
Referring to figure 2., another technical solution of the present invention are as follows:
A kind of vehicle early warning terminal 100, including processor 1, memory 2 and be stored on memory 2 and can handle
The computer program run on device 1,
The processor 1 performs the steps of when executing the computer program
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, being calculated separately to obtain dimension information, the movement speed of the mobile object according to the video image information
Degree and moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
Further, it is also performed the steps of when the processor 1 executes the computer program
When, there are when mobile object, being saved to the video image information in the video image information.
Further, it whether there is mobile object in the judgement video image information specifically:
Obtain the successive video frames image of at least two frames in the video image information；
Judged in the video image information according to the successive video frames image with the presence or absence of mobile object.
Further, it is described according to the video image information calculate separately to obtain the mobile object dimension information,
Movement speed and moving direction specifically include:
According to the contour curve of the successive video frames image capturing mobile object；
It is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
Obtain motion profile of the mass center in successive video frames image；
The movement speed of mobile object is calculated separately according to the motion profile and judges the moving direction of mobile object.
Further, the moving direction of mobile object is judged according to the motion profile specifically:
Default observation window；
The maximum height value and minimum height values of the observation window are obtained respectively；
The height value of the mass center of mobile object is obtained according to the motion profile；
When the height value of the mass center is between the maximum height value and minimum height values and when increasing, then move
Object is moved to the direction close to vehicle；
When the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller, then move
Object is moved to the direction far from vehicle.
Further, it is also performed the steps of when the processor 1 executes the computer program
Before the danger level alert further include:
Different warning messages is preset according to danger level.
Please refer to Fig. 1, the embodiment of the present invention one are as follows:
A kind of vehicle early warning method, includes the following steps:
S1, the video image information obtained in vehicle preset range.After vehicle preset range includes front of the car, vehicle
The range in portion, several meters or more than ten meters of vehicle two sides, specific range size, which can according to need, to be configured.
S2, judge in the video image information with the presence or absence of mobile object；If so, thening follow the steps S3；If it is not, then will
Screen image information abandons.In the present embodiment, step S2 specifically: at least two frames in S21, the acquisition video image information
Successive video frames image；S22, judged in the video image information according to the successive video frames image with the presence or absence of movement
Object.When, there are when mobile object, being saved to the video image information in the video image information.
S3, the dimension information for calculating separately to obtain the mobile object according to the video image information, movement speed and
Moving direction.In the present embodiment, mobile object in image can also be analyzed by obtaining successive video frames image when calculating
Pace of change and orientation.
In the present embodiment, step S3 is specifically included:
S31, according to the contour curve of the successive video frames image capturing mobile object；
S32, it is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
S33, motion profile of the mass center in successive video frames image is obtained；
S34, the movement speed of mobile object is calculated separately according to the motion profile and judges the mobile side of mobile object
To.When judging movement speed, it can be judged that mobile object movement is got over by the displacement of mass center in continuous a few frame videos
Fastly, then it is displaced bigger.
In the present embodiment, the moving direction of mobile object is judged according to the motion profile specifically:
S341, default observation window；
S342, the maximum height value and minimum height values for obtaining the observation window respectively；
S343, according to the motion profile obtain mobile object mass center height value；
S344, when the height value of the mass center is between the maximum height value and minimum height values and when increasing,
Then mobile object is moved to the direction close to vehicle；
S345, when the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller,
Then mobile object is moved to the direction far from vehicle.
In step S341, the size of observation window, which can according to need, to be configured, and is the early warning range of vehicle.Initial
When being observed, possibility is there are no mobile object in observation window, and therefore, it is necessary to the mobile objects to entrance observation window one by one
It is marked and tracks, until mobile object leaves observation window.
S4, the danger level that the mobile object is judged according to the dimension information, movement speed and moving direction.Work as ruler
Very little information is bigger, movement speed is faster and it is mobile to the direction close to vehicle when, danger level is higher.
S5, according to the danger level alert.Before step S5 further include: according to the default difference of danger level
Warning message.Danger level is bigger, can be more rapid by warning message setting, reminds driver to collide to reduce with this
A possibility that.
The vehicle early warning method of the present embodiment can help driver to detect whether rear of vehicle two side areas has motive objects
Body is close；Also it can detecte the region of vehicle two sides, such as check whether rear of vehicle or two sides have vehicle in lane change；May be used also
When with the enabling of driver after a stop of the vehicle, detect whether rear of vehicle and two sides have mobile object.Driving can be greatly improved
Safety, prevents to collide, to the discrimination of mobile object up to 100%.
Referring to figure 2., the embodiment of the present invention two are as follows:
A kind of vehicle early warning terminal 100, it is corresponding with the method for embodiment one, comprising: processor 1, memory 2 and to deposit
The computer program that can be run on memory 2 and on processor 1 is stored up,
The processor 1 performs the steps of when executing the computer program
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, being calculated separately to obtain dimension information, the movement speed of the mobile object according to the video image information
Degree and moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
Further, it is also performed the steps of when the processor 1 executes the computer program
When, there are when mobile object, being saved to the video image information in the video image information.
Further, it whether there is mobile object in the judgement video image information specifically:
Obtain the successive video frames image of at least two frames in the video image information；
Judged in the video image information according to the successive video frames image with the presence or absence of mobile object.
Further, it is described according to the video image information calculate separately to obtain the mobile object dimension information,
Movement speed and moving direction specifically include:
According to the contour curve of the successive video frames image capturing mobile object；
It is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
Obtain motion profile of the mass center in successive video frames image；
The movement speed of mobile object is calculated separately according to the motion profile and judges the moving direction of mobile object.
Further, the moving direction of mobile object is judged according to the motion profile specifically:
Default observation window；
The maximum height value and minimum height values of the observation window are obtained respectively；
The height value of the mass center of mobile object is obtained according to the motion profile；
When the height value of the mass center is between the maximum height value and minimum height values and when increasing, then move
Object is moved to the direction close to vehicle；
When the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller, then move
Object is moved to the direction far from vehicle.
Further, it is also performed the steps of when the processor 1 executes the computer program
Before the danger level alert further include:
Different warning messages is preset according to danger level.
In conclusion a kind of vehicle early warning method provided by the invention and terminal, method for early warning is simple and reliable, can be significantly
Traffic safety is improved, prevents to collide.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of vehicle early warning method characterized by comprising
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, according to the video image information calculate separately to obtain the dimension information of the mobile object, movement speed and
Moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
2. vehicle early warning method according to claim 1, which is characterized in that be in the judgement video image information
It is no that there are mobile objects specifically:
Obtain the successive video frames image of at least two frames in the video image information；
Judged in the video image information according to the successive video frames image with the presence or absence of mobile object.
3. vehicle early warning method according to claim 2, which is characterized in that described to be distinguished according to the video image information
Dimension information, movement speed and the moving direction that the mobile object is calculated specifically include:
According to the contour curve of the successive video frames image capturing mobile object；
It is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
Obtain motion profile of the mass center in successive video frames image；
The movement speed of mobile object is calculated separately according to the motion profile and judges the moving direction of mobile object.
4. vehicle early warning method according to claim 3, which is characterized in that judge mobile object according to the motion profile
Moving direction specifically:
Default observation window；
The maximum height value and minimum height values of the observation window are obtained respectively；
The height value of the mass center of mobile object is obtained according to the motion profile；
When the height value of the mass center is between the maximum height value and minimum height values and when increasing, then mobile object
It is moved to the direction close to vehicle；
When the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller, then mobile object
It is moved to the direction far from vehicle.
5. vehicle early warning method according to claim 1, which is characterized in that described issued according to the danger level is alarmed
Before information further include: preset different warning messages according to danger level.
6. a kind of vehicle early warning terminal, including processor, memory and storage can be run on a memory and on a processor
Computer program, which is characterized in that
The processor performs the steps of when executing the computer program
Obtain the video image information in vehicle preset range；
Judge in the video image information with the presence or absence of mobile object；
If so, according to the video image information calculate separately to obtain the dimension information of the mobile object, movement speed and
Moving direction；
The danger level of the mobile object is judged according to the dimension information, movement speed and moving direction；
According to the danger level alert.
7. vehicle early warning terminal according to claim 6, which is characterized in that be in the judgement video image information
It is no that there are mobile objects specifically:
Obtain the successive video frames image of at least two frames in the video image information；
Judged in the video image information according to the successive video frames image with the presence or absence of mobile object.
8. vehicle early warning terminal according to claim 7, which is characterized in that described to be distinguished according to the video image information
Dimension information, movement speed and the moving direction that the mobile object is calculated specifically include:
According to the contour curve of the successive video frames image capturing mobile object；
It is calculated separately to obtain the dimension information and mass center of mobile object according to the contour curve；
Obtain motion profile of the mass center in successive video frames image；
The movement speed of mobile object is calculated separately according to the motion profile and judges the moving direction of mobile object.
9. vehicle early warning terminal according to claim 8, which is characterized in that judge mobile object according to the motion profile
Moving direction specifically:
Default observation window；
The maximum height value and minimum height values of the observation window are obtained respectively；
The height value of the mass center of mobile object is obtained according to the motion profile；
When the height value of the mass center is between the maximum height value and minimum height values and when increasing, then mobile object
It is moved to the direction close to vehicle；
When the height value of the mass center is between the maximum height value and minimum height values and when smaller and smaller, then mobile object
It is moved to the direction far from vehicle.
10. vehicle early warning terminal according to claim 6, which is characterized in that the processor executes the computer journey
It is also performed the steps of when sequence
Before the danger level alert further include:
Different warning messages is preset according to danger level.
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| CN201811157171.XA CN109243150A (en) | 2018-09-30 | 2018-09-30 | A kind of vehicle early warning method and terminal |
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| CN114419859A (en) * | 2021-12-27 | 2022-04-29 | 湖南中联重科应急装备有限公司 | Safety detection method, processor and device for supporting leg and fire fighting truck |
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Application publication date: 20190118 |