CN102529844A - Backing auxiliary method, backing auxiliary system and automobile - Google Patents
Backing auxiliary method, backing auxiliary system and automobile Download PDFInfo
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- CN102529844A CN102529844A CN201010619597XA CN201010619597A CN102529844A CN 102529844 A CN102529844 A CN 102529844A CN 201010619597X A CN201010619597X A CN 201010619597XA CN 201010619597 A CN201010619597 A CN 201010619597A CN 102529844 A CN102529844 A CN 102529844A
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Abstract
The invention is applicable to the field of automobile electronics, and provides a backing auxiliary method, a backing auxiliary system and an automobile. The system comprises a memory, a data transceiver, a processor and an image sensor, wherein the memory is used for storing automobile auxiliary line picture data, the data transceiver is used for acquiring steering wheel turning data in an automobile bus and transmitting the steering wheel turning data to the processor, the processor is used for calculating position data of the current automobile body position corresponding to the steering wheel turning data, writing the position data into the image sensor and sending picture data call instructions to the image sensor, and the image sensor is used for superposing the automobile auxiliary line picture data with video signal data and outputting the superposed data to display equipment. System cost is effectively reduced, and processing precision is improved since video signal separation and multiple ICs (integrated circuits) for processing are not needed, and backing safety is guaranteed to the maximum extent.
Description
Technical field
The invention belongs to vehicle electric field, relate in particular to a kind of reversing householder method, system and automobile.
Background technology
The Along with people's growth in the living standard, private car, transport trolley and various vehicle grow with each passing day, and automobile becomes the middle hinge belt of various places economic development, and the growth of automobile quantity has also driven the vigorous of automobile accessories produce markets.In numerous automobile accessories products, especially noticeable with the auxiliary products that reversing is security-related, the application of reversing aid system has become one of important symbol of configuration of automobiles quality.Usually automobile rear image when tailstock portion installs automobile and for the driver reversing is provided, yet, the dynamic ancillary system tradition of tradition reversing need with the vision signal that collects through capable separation of special chip after; Carry out synthesizing the treatment step such as grade again after the image overlay through other chip again, and image can cause display precision not high through after repeatedly handling; Distortion rate is high; Cost is more expensive, and speed of response is slow, shows shortcomings such as unreliable.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of reversing aid system, is intended to solve the reversing aid system complex structure of prior art, and image is through repeatedly handling, and causes that cost is high, display precision is not high, distortion rate is high, show insecure problem.
The embodiment of the invention is achieved in that a kind of reversing aid system, and said system comprises memory device, data collector, treater and imageing sensor;
Said memory device is used for storage cart subordinate line image data;
Said data collector, the steering wheel angle data that are used for gathering automobile bus send to said treater with said steering wheel angle data;
Said treater; Be used for according to said steering wheel angle data; Calculate when front body position and the corresponding position data of said steering wheel angle data, said position data is write said imageing sensor, and send the image data call instruction to said imageing sensor;
Said imageing sensor is used for according to said position data and image data call instruction, calls corresponding car subordinate line image data in the said memory device, and with said car subordinate line image data and video signal data stack, exports to display equipment.
The embodiment of the invention also provides a kind of automobile, and said automobile comprises above-mentioned reversing aid system.
The embodiment of the invention also provides a kind of reversing householder method, and said method comprises:
Gather the steering wheel angle data in the automobile bus;
According to said steering wheel angle data, calculate when front body position and the corresponding position data of said steering wheel angle data;
According to said position data and image data call instruction, call in advance storage car subordinate line image data, and with said car subordinate line image data and the output demonstration of video signal data stack back.
In embodiments of the present invention, directly accomplish functions such as image call is synthetic, need not in the video rear end utilization IC etc. and separate and superposed signal, effectively reduce cost through imageing sensor.Simultaneously, owing to do not need vision signal separation and a plurality of IC to handle, therefore improved processing accuracy, distortion rate is low, shows reliably, on maximum program, ensures the safety of moveing backward, and the accident that prevents takes place.
Description of drawings
Fig. 1 is the constructional drawing of the reversing aid system that provides of the embodiment of the invention one;
Fig. 2 is the constructional drawing of the image overlay unit that provides of the embodiment of the invention two;
Fig. 3 is the scheme drawing that reversing aid system that the embodiment of the invention four provides is used for automobile.
Fig. 4 is the diagram of circuit of the realization of the reversing householder method that provides of the embodiment of the invention five.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is directly accomplished functions such as image call is synthetic through imageing sensor, effectively reduces cost.Simultaneously, improved processing accuracy, on maximum program, ensured reversing safety, the accident that prevents takes place.
The embodiment of the invention is achieved in that a kind of reversing aid system, and said system comprises memory device, data collector, treater and imageing sensor;
Said memory device is used for storage cart subordinate line image data;
Said data collector, the steering wheel angle data that are used for gathering automobile bus send to said treater with said steering wheel angle data;
Said treater; Be used for according to said steering wheel angle data; Calculate when front body position and the corresponding position data of said steering wheel angle data, said position data is write said imageing sensor, and send the image data call instruction to said imageing sensor;
Said imageing sensor is used for according to said position data and image data call instruction, calls corresponding car subordinate line image data in the said memory device, and with said car subordinate line image data and video signal data stack, exports to display equipment.
The embodiment of the invention also provides a kind of automobile, and said automobile comprises above-mentioned reversing aid system.
The embodiment of the invention also provides a kind of reversing householder method, and said method comprises:
Gather the steering wheel angle data in the automobile bus;
According to said steering wheel angle data, calculate when front body position and the corresponding position data of said steering wheel angle data;
According to said position data and image data call instruction, call in advance storage car subordinate line image data, and with said car subordinate line image data and the output demonstration of video signal data stack back.
In embodiments of the present invention, directly accomplish functions such as image call is synthetic, need not in the video rear end utilization IC etc. and separate and superposed signal, effectively reduce cost through imageing sensor.Simultaneously, owing to do not need vision signal separation and a plurality of IC to handle, therefore improved processing accuracy, shown reliably, on maximum program, ensure the safety of moveing backward, the accident that prevents takes place.
Below in conjunction with specific embodiment realization of the present invention is described in detail:
Embodiment one
Fig. 1 shows the constructional drawing of the reversing aid system that the embodiment of the invention one provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention, and this system can be interior software unit, hardware cell or a soft or hard combining unit of built-in automobile.
This reversing aid system comprises:
In embodiments of the present invention; Automobile bus can be controller local area network (Controller AreaNetwork; CAN) bus or local internet (Local Interconnect Network; LIN) which kind of network is bus specifically adopt can be according to the decision of the performance of system, at this not in order to restriction the present invention.
In embodiments of the present invention, data collector 12 can be CAN data collector or LIN data collector.
Treater 13 according to the steering wheel angle data, calculates when front body position and the corresponding position data of steering wheel angle data, and position data is write imageing sensor 13, and sends the image data call instruction to imageing sensor 13.
In embodiments of the present invention, can (Inter-Integrated Circuit, IIC) bus writes data to imageing sensor 13 through the internal integration circuit.
Imageing sensor 14, receiving video signals data, according to position data and image data call instruction are called corresponding car subordinate line image data in the memory device 11, and car subordinate line image data and video signal data are superposeed, and export to display equipment.
In embodiments of the present invention, imageing sensor is gathered the signal of outside scenery, and the signal of gathering is handled, and forms vision signal, and with car subordinate line image data and video signal data stack, exports to display equipment.
In embodiments of the present invention; Memory device 11 can be stored the backing track auxiliary line of multiple vehicle in advance, and with the format of RLE, in automobile bus, obtains the steering wheel angle data through data collector 12; After handling the corner data according to the corner data by treater 13; Calculate when front body position and the corresponding data of corner, write the car subordinate line image data that need call to imageing sensor 14 again, through Composite Video Broadcast Signal (Composite Video Broadcast Signal; CVBS) or other video output signals, directly exporting to read-out shows.
In embodiments of the present invention; The MT9V127 that imageing sensor 14 can adopt APTINA company to release; Treater 13 can adopt the PIC18F2480 of MICROCHIP company; Data collector 12 can adopt the CAN data collector of the TJA1040 of NXP company, and memory device 11 can adopt the AT26F004 of atmel corp.
In embodiments of the present invention, directly accomplish functions such as image call is synthetic, need not in the video rear end that utilization IC etc. separates, stack and composite signal, effectively reduce cost through imageing sensor.Simultaneously, owing to do not need vision signal separation and a plurality of IC to handle, therefore improved processing accuracy, distortion rate is low, shows reliably, on maximum program, ensures the safety of moveing backward, and the accident that prevents takes place.
Embodiment two
In embodiments of the present invention, imageing sensor 13 comprises the image overlay unit, and image overlay unit inner structure sees also Fig. 2, for the ease of explanation, only shows the part relevant with the embodiment of the invention.
The image overlay unit specifically comprises register 21 and overlay chart's layer module 22.
Register 21 superimposed layer that invoke user needs in overlay chart's layer module 22.
Overlay chart's layer module 22 enables the layer of the needs stack that above-mentioned register 21 calls according to control signal, and car subordinate line image data and video signal data are superposeed, and exports to display equipment, and overlay chart's layer module comprises a plurality of superimposed layers.
In exemplifying embodiment of the present invention, overlay chart's layer module 22 can comprise a plurality of superimposed layers, is example in this situation that provides four layers, sees also 2.
In embodiments of the present invention, after image being encoded,, thereby the car subordinate line is superimposed upon on the video output signals by enabling of figure layer in the control overlay chart layer module stack of treater in the inside of imageing sensor in-to-in image overlay unit.
Embodiment three
In embodiments of the present invention, the car subordinate line image data of memory device 11 storages is corresponding with the steering wheel angle data, and concrete corresponded manner can adopt following mode:
1, each steering wheel angle number of degrees is all corresponding with corresponding car subordinate line image data.
2, the steering wheel angle data are divided into a plurality of intervals, each is interval all corresponding with corresponding car subordinate line image data.
In embodiments of the present invention; Through between the steering wheel angle number of degrees and car subordinate line image data, setting up corresponding relation; Make and when bearing circle generation angle changes, all can call different car subordinate lines; The user can obtain the supplementary of moveing backward dynamically, has not only improved safety, for the user favorable user experience is provided simultaneously.
Embodiment four
The embodiment of the invention provides a kind of automobile, and this automobile comprises the reversing aid system among the embodiment one to embodiment three, sees also the scheme drawing that reversing aid system that Fig. 3 shows the embodiment of the invention and provide is used for automobile.
In embodiments of the present invention; Reversing aid system can be arranged in the rearmounted camera of automobile; Concrete reversing aid system comprises memory device 31, imageing sensor 32, treater 33 and data collector 34; Its concrete function can be consulted among the embodiment one accordingly and describe, at this not in order to restriction the present invention.
In embodiments of the present invention, imageing sensor 32 also comprises image overlay unit 321, and the image overlay unit specifically comprises register 3211 and overlay chart's layer module 3212, and concrete function can be consulted among the embodiment two and describe accordingly, at this not in order to restriction the present invention.
Embodiment five
Fig. 4 shows the diagram of circuit of the realization of the reversing householder method that the embodiment of the invention five provides, and details are as follows:
In step S401, gather the steering wheel angle data in the automobile bus.
In embodiments of the present invention; Automobile bus can be controller local area network (Controller AreaNetwork; CAN) bus or local internet (Local Interconnect Network; LIN) which kind of network is bus specifically adopt can be according to the decision of the performance of system, at this not in order to restriction the present invention.
In step S402,, calculate when front body position and the corresponding position data of steering wheel angle according to the steering wheel angle data.
In step S403, according to position data and image data call instruction, call the car subordinate line image data of storage in advance, and car subordinate line image data and video signal data stack back output are shown.
In embodiments of the present invention, car subordinate line image data is corresponding with the steering wheel angle data, and corresponding mode is specially:
Each steering wheel angle number of degrees is all corresponding with corresponding car subordinate line image data; Perhaps
The steering wheel angle data are divided into a plurality of intervals, and each is interval all corresponding with corresponding car subordinate line image data.
The embodiment of the invention is through the steering wheel angle data in the collection automobile bus, and according to the steering wheel angle data, calculating is when front body position and the corresponding position data of steering wheel angle; According to position data; Call the car subordinate line image data of storage in advance, on display equipment, show after the video signal data stack with car subordinate line image data and reception, need not to carry out separation of signals; Treating process is simple, has improved processing accuracy.
In sum, the present invention directly accomplishes functions such as image call is synthetic through imageing sensor, need not in the video rear end utilization IC etc. and separates and superposed signal, effectively reduces cost.Simultaneously, owing to do not need vision signal separation and a plurality of IC to handle, therefore improved processing accuracy, distortion rate is low, on maximum program, ensures reversing safety, and the accident that prevents takes place.
Through between the steering wheel angle number of degrees and car subordinate line image data, setting up corresponding relation; Make and when bearing circle generation angle changes, all can call different car subordinate lines; The user can obtain the supplementary of moveing backward dynamically; Not only improved safety, for the user favorable user experience is provided simultaneously.
It should be noted that among the said system embodiment that each included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize function corresponding; In addition, the concrete title of each functional unit also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition; One of ordinary skill in the art will appreciate that all or part of step that realizes in above-mentioned each embodiment method is to instruct relevant hardware to accomplish through program; Corresponding program can be stored in the computer read/write memory medium; Described storage medium is like ROM/RAM, disk or CD etc.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a reversing aid system is characterized in that, said system comprises memory device, data collector, treater and imageing sensor;
Said memory device is used for storage cart subordinate line image data;
Said data collector, the steering wheel angle data that are used for gathering automobile bus send to said treater with said steering wheel angle data;
Said treater; Be used for according to said steering wheel angle data; Calculate when front body position and the corresponding position data of said steering wheel angle data, said position data is write said imageing sensor, and send the image data call instruction to said imageing sensor;
Said imageing sensor is used for according to said position data and image data call instruction, calls corresponding car subordinate line image data in the said memory device, and with said car subordinate line image data and video signal data stack, exports to display equipment.
2. the system of claim 1 is characterized in that, said imageing sensor comprises the image overlay unit, and said image overlay unit specifically comprises register and overlay chart's layer module;
Said register is used for the superimposed layer at said overlay chart's layer module invoke user needs;
Said overlay chart's layer module is used for enabling the layer that said register calls according to control signal, with said car subordinate line image data and video signal data stack, exports to display equipment, and said overlay chart's layer module comprises a plurality of superimposed layers.
3. the system of claim 1 is characterized in that, the car subordinate line image data of said memory stores is corresponding with said steering wheel angle data, and said corresponding mode is specially:
Each steering wheel angle number of degrees is all corresponding with corresponding car subordinate line image data; Perhaps
The said steering wheel angle number of degrees are divided into a plurality of intervals, and each is interval all corresponding with corresponding car subordinate line image data.
4. the system of claim 1 is characterized in that, said automobile bus is controller local area network CAN bus or local internet LIN bus.
5. the system of claim 1 is characterized in that, said data collector is CAN data collector or LIN data collector.
6. the system of claim 1 is characterized in that, writes data through internal integration circuit I IC bus to imageing sensor.
7. an automobile is characterized in that said automobile comprises the described reversing aid system of the arbitrary claim of claim 1 to claim 6.
8. a reversing householder method is characterized in that said method comprises the steps:
Gather the steering wheel angle data in the automobile bus;
According to said steering wheel angle data, calculate when front body position and the corresponding position data of said steering wheel angle data;
According to said position data and image data call instruction, call the car subordinate line image data of storage in advance, and said car subordinate line image data and video signal data stack back output are shown.
9. method as claimed in claim 8 is characterized in that, said car subordinate line image data is corresponding with said steering wheel angle data, and said corresponding mode is specially:
Each steering wheel angle number of degrees is all corresponding with corresponding car subordinate line image data; Perhaps
Said steering wheel angle data are divided into a plurality of intervals, and each is interval all corresponding with corresponding car subordinate line image data.
10. method as claimed in claim 8 is characterized in that, said automobile bus is controller local area network CAN bus or local internet LIN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619597XA CN102529844A (en) | 2010-12-31 | 2010-12-31 | Backing auxiliary method, backing auxiliary system and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619597XA CN102529844A (en) | 2010-12-31 | 2010-12-31 | Backing auxiliary method, backing auxiliary system and automobile |
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| CN102529844A true CN102529844A (en) | 2012-07-04 |
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| CN201010619597XA Pending CN102529844A (en) | 2010-12-31 | 2010-12-31 | Backing auxiliary method, backing auxiliary system and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102938832A (en) * | 2012-10-12 | 2013-02-20 | 广东丰诺汽车安全科技有限公司 | Information display system |
| CN106274753A (en) * | 2016-09-09 | 2017-01-04 | 深圳华汽车科技有限公司 | The multiple information shared system of a kind of automobile auxiliary security and decision method |
| CN106713704A (en) * | 2015-07-21 | 2017-05-24 | 杭州海康威视数字技术股份有限公司 | Camera applied to automobile |
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| CN101494771A (en) * | 2008-11-19 | 2009-07-29 | 广东铁将军防盗设备有限公司 | Backing auxiliary device and photographic device thereof as well as image composition display method |
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| CN1591255A (en) * | 2003-08-28 | 2005-03-09 | 丰田自动车株式会社 | Vehicle backward movement assist device and vehicle parking assist device |
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| CN101494771A (en) * | 2008-11-19 | 2009-07-29 | 广东铁将军防盗设备有限公司 | Backing auxiliary device and photographic device thereof as well as image composition display method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102938832A (en) * | 2012-10-12 | 2013-02-20 | 广东丰诺汽车安全科技有限公司 | Information display system |
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| CN106713704A (en) * | 2015-07-21 | 2017-05-24 | 杭州海康威视数字技术股份有限公司 | Camera applied to automobile |
| CN106274753A (en) * | 2016-09-09 | 2017-01-04 | 深圳华汽车科技有限公司 | The multiple information shared system of a kind of automobile auxiliary security and decision method |
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Application publication date: 20120704 |