CN201716417U - Visible car reversing aid system - Google Patents
Visible car reversing aid system Download PDFInfo
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- CN201716417U CN201716417U CN2010290680103U CN201029068010U CN201716417U CN 201716417 U CN201716417 U CN 201716417U CN 2010290680103 U CN2010290680103 U CN 2010290680103U CN 201029068010 U CN201029068010 U CN 201029068010U CN 201716417 U CN201716417 U CN 201716417U
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Abstract
The utility model discloses a visible car reversing aid system which is composed of a ultrasonic wave sensor, a camera, a display, a matching circuit for ultrasonic wave sensor, a language alert circuit, a ultrasonic wave emission and reception signal circuit and a single-chip microcomputer, wherein the camera is provided with a DSP processor which will receive digital image signal, distance signal and orientation signal and perform real time processing into a simulation signal; wherein distance will be displayed real time on the screen and a twinkling scale is provided at the said position. The utility model can display distance and give an accurate and more direct displaying of condition of the rear part of the automobile and distance and orientation of the barriers through the DSP processor at the camera and the twinkling scale at the screen. The utility model can report orally distance and orientation of the barriers, thus increasing safety upon car reversing. The utility model has the advantages of simple structure, stable performance, convenient installation and observation, and wide application to car reversing of all various vehicles.
Description
Technical field
The utility model relates to a kind of radar equipment, relates in particular to a kind of video vehicle back radar.
Background technology
For a long time, the reversing automobile back-sight visual system all can only provide the common image and the stack of distance all the time, and the surrounding enviroment of barrier position can't visual indication be given the driver.
The utility model content
The purpose of this utility model is for solve existing issue, provide a kind of circuit structure simple, visually present to the video vehicle back radar that the driver observes the barrier mode simultaneously visual and clearly.
The utility model is achieved in that
A kind of video vehicle back radar, it is made up of ultrasonic sensor, camera, display, ultrasonic sensor match circuit, verbal cue circuit, ultrasonic emitting and received signal circuit and processor of single chip computer, camera is provided with a dsp processor, dsp processor receives digital image signal, simulating signal is handled and synthesized to the distance and bearing signal in real time, in real time range of a signal and the scale of flicker is provided at this distance and position on screen.
The dsp processor circuit is made up of integrated package U2, resistance, electric capacity, triode Q1 and crystal oscillator X1, picture signal is directly imported (D0～D9) to dsp processor from imageing sensor integrated package U1, the external EEPROM integrated package of dsp processor U3, built-in handling procedure of EEPROM integrated package U3 and picture, the distance and bearing signal that dsp processor provides according to processor of single chip computer integrated package U8, synthetic real-time and dynamic vision signal, vision signal is input to display through resistance R 2 at triode Q1 ground level.
Processor of single chip computer regularly sends ultrasonic pulse signal, send to more than one ultrasonic probe the ultrasonic pulse signal cycle assignment through channel selecting, ultrasonic probe receives the signal that barrier fires back, through frequency-selecting, amplification and comparator circuit, signal is transferred to processor of single chip computer, processor of single chip computer is according to calculated signals ultrasonic probe that receives and the distance between the barrier, and the distance that compares between each ultrasonic probe and the barrier is big or small, draws the nearest distance of barrier and ultrasonic probe, orientation; Afterwards, processor of single chip computer output corresponding signal is to dsp processor.
Ultrasonic emitting is to be sent by the processor of single chip computer plug-in, select open-minded by channel switching circuit, give ultrasonic probe with the ultrasonic pulse signal cycle assignment, the work of control ultrasonic probe, the integrated package U6 that each ultrasonic probe is selected by ultrasonic probe match circuit and control channel links to each other.
Ultrasonic reception is the integrated package U6 that is selected by ultrasonic probe and control channel, through frequency-selecting and amplification, signal connects the secondary amplification comparator circuit that integrated package U7B forms from the output pin of the integrated package U6 that control channel is selected, on this circuit, add adjustable resistance R59, regulate sensitivity, three-stage amplifier through being made up of integrated package U7A again, the signal that amplification ratio is obtained complete square wave after is input to processor of single chip computer integrated package U8.
Voice warning circuit is made up of voice integrated package U9, resistance, electric capacity, power discharging integrated block U13 and loudspeaker, processor of single chip computer will receive the ultrasonic signal square wave that comes and calculate respectively, and the distance that compares between each ultrasonic probe and the barrier is big or small, draw orientation, the distance of barrier, simultaneously the corresponding instruction signal is outputed to voice integrated package U9, voice integrated package U9 is by 16 pin, be input to power discharging integrated block U13 after capacitor C 29, resistance R 42, power discharging integrated block U13 drives the voice suggestion that loudspeaker send distance.
Power supply is imported by automobile storage battery, by diode and inductance, the filtering of electric capacity, step-down, voltage stabilizing, exports 5V, 8V and 3.3V DC voltage respectively behind integrated package U10, U11, U12.
The beneficial effects of the utility model are by a dsp processor being set at camera and the scale range of a signal of flicker being provided on screen, can situation more accurate, display automobile afterbody more intuitively and the distance and bearing of barrier, enter for the distance and bearing of barrier simultaneously with language, improve the safety of automobile when reversing, circuit structure is simple, stable performance, installation and observation are convenient, can be widely used in various vehicle backings and use.
Description of drawings
Fig. 1 is a kind of video vehicle back radar system architecture of the utility model synoptic diagram;
Fig. 2 is a kind of video vehicle back radar host circuit of the utility model structural representation;
Fig. 3 is a kind of video vehicle back radar camera of the utility model circuit theory diagrams;
Fig. 4 is a kind of video vehicle back radar car-backing function of the utility model synoptic diagram;
Fig. 5 is a kind of video vehicle back radar learning functionality of the utility model synoptic diagram.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in detail.
As Fig. 1, Fig. 2, shown in Figure 3, a kind of video vehicle back radar, it is made up of ultrasonic sensor, camera, display, ultrasonic sensor match circuit, verbal cue circuit, ultrasonic emitting and received signal circuit and processor of single chip computer, camera is provided with a dsp processor, dsp processor receives digital image signal, simulating signal is handled and synthesized to the distance and bearing signal in real time, in real time range of a signal and the scale of flicker is provided at this distance and position on screen.
The dsp processor circuit is made up of integrated package U2, resistance, electric capacity, triode Q1 and crystal oscillator X1, picture signal is directly imported (D0～D9) to dsp processor from imageing sensor integrated package U1, the external EEPROM integrated package of dsp processor U3, built-in handling procedure of EEPROM integrated package U3 and picture, the distance and bearing signal that dsp processor provides according to processor of single chip computer integrated package U8, synthetic real-time and dynamic vision signal, vision signal is input to display through resistance R 2 at triode Q1 ground level.
Processor of single chip computer regularly sends ultrasonic pulse signal, send to more than one ultrasonic probe the ultrasonic pulse signal cycle assignment through channel selecting, ultrasonic probe receives the signal that barrier fires back, through frequency-selecting, amplification and comparator circuit, signal is transferred to processor of single chip computer, processor of single chip computer is according to calculated signals ultrasonic probe that receives and the distance between the barrier, and the distance that compares between each ultrasonic probe and the barrier is big or small, draws the nearest distance of barrier and ultrasonic probe, orientation; Afterwards, processor of single chip computer output corresponding signal is to dsp processor.
Ultrasonic emitting is to be sent by the processor of single chip computer plug-in, select open-minded by channel switching circuit, give ultrasonic probe with the ultrasonic pulse signal cycle assignment, the work of control ultrasonic probe, the integrated package U6 that each ultrasonic probe is selected by ultrasonic probe match circuit and control channel links to each other.
Ultrasonic reception is the integrated package U6 that is selected by ultrasonic probe and control channel, through frequency-selecting and amplification, signal connects the secondary amplification comparator circuit that integrated package U7B forms from the output pin of the integrated package U6 that control channel is selected, on this circuit, add adjustable resistance R59, regulate sensitivity, three-stage amplifier through being made up of integrated package U7A again, the signal that amplification ratio is obtained complete square wave after is input to processor of single chip computer integrated package U8.
Voice warning circuit is made up of voice integrated package U9, resistance, electric capacity, power discharging integrated block U13 and loudspeaker, processor of single chip computer will receive the ultrasonic signal square wave that comes and calculate respectively, and the distance that compares between each ultrasonic probe and the barrier is big or small, draw orientation, the distance of barrier, simultaneously the corresponding instruction signal is outputed to voice integrated package U9, voice integrated package U9 is by 16 pin, be input to power discharging integrated block U13 after capacitor C 29, resistance R 42, power discharging integrated block U13 drives the voice suggestion that loudspeaker send distance.
Power supply is imported by automobile storage battery, by diode and inductance, the filtering of electric capacity, step-down, voltage stabilizing, exports 5V, 8V and 3.3V DC voltage respectively behind integrated package U10, U11, U12.
When the reversing beginning, the reversing power supply begins power supply, and equipment is started working.Mu balanced circuit offers processor of single chip computer and other circuits needed voltage of voltage regulation, camera is with situation about being taken the photograph, be input to and be presented on the display after dsp processor is handled, the built-in control program of processor of single chip computer sends the supersonic frequency (s.f.) pulse signal, give each ultrasonic probe through channel selecting with the ultrasonic pulse signal cycle assignment, add supersonic frequency (s.f.) voltage by the ultrasound wave match circuit to ultrasonic probe, ultrasonic probe sends ultrasound wave, the ultrasound wave that sends is met the barrier emission, receive through ultrasonic probe, obtain signal, through multistage amplification, frequency-selecting, filtering is input on the comparison integrated package complete square wave of output and is input to processor of single chip computer and carries out numerical value and handle, each passage of processor of single chip computer scan round, in a circulation, processor of single chip computer will receive the signal of square wave and handle, with analog signal conversion is digital signal, with the digital signal write buffer, carry out computing and comparison, draw ultrasonic probe in a circulation and the distance between the barrier, and the size of distance between each ultrasonic probe and the barrier relatively, draw minimum distance, processor of single chip computer issues a signal to dsp processor according to azimuth-range, dsp processor is handled after the picture signal on the synthetic video input display, processor of single chip computer sends signal and gives voice warning circuit simultaneously, the different pulse signal of processor of single chip computer output drives loudspeaker, according to the azimuth-range of barrier, sends the audio alert sound that conforms to it.
6,8, the 24 pin positions of imageing sensor integrated package U1 connect the 2.8V direct current of integrated package U5 output, and data image signal D0～D9 is respectively by 26 of imageing sensor integrated package U1,25,22,21,19,18,17,16,15, the output of 14 pin positions is transferred to 6,7,8 of dsp processor integrated package U2,9,10,11,12,13,14,15 pin positions, the dsp processor processing digital signal is to analog video signal; 38 pin of dsp processor integrated package U2 receive the distance and bearing of barrier, show in real time on picture by the plug-in command range.
Simultaneously, call the different pictures of EEPROM integrated package U3 the inside by plug-in, reach dynamic real-time and show according to distance and bearing.Picture that dsp processor integrated package U2 need use and parameter setting are built among the EEPROM integrated package U3, EEPROM integrated package U3 is by pin position 1,2,5,6 connect 41,42, the 43 and 44 pin positions of dsp processor integrated package U2, vision signal after synthetic outputs to display by the 29 pin positions of dsp processor integrated package U2 by resistance R 2, R3, R4, R5 and triode Q1.
The plug-in of EEPROM integrated package U3 possesses the reserve birthmark and recalls function, eliminates owing to ultrasonic sensor detects the wrong report that the reserve tire causes.Be provided with the study button in the plug-in, according to keyswitch on the mainboard, enter reverse gear, display screen shows as shown in Figure 5, enters the reserve birthmark and recalls function system, suspends and restarts after 8 seconds, will remember back spare tyre and other object that detects automatically.
The study button is connected 16 pin positions of single-chip microcomputer by resistance R 33, after pressing the study button, the 16 pin positions of processor of single chip computer integrated package U8 receive signal, start plug-in, processor of single chip computer sends ultrasonic pulse signal, ultrasonic transmit circuit sends to ultrasonic probe, ultrasonic probe receives the signal that barrier reflects, signal is inputed to processor of single chip computer, processor of single chip computer will be imported the signal that receives respectively and calculate distance between ultrasonic probe and the barrier, and the distance that compares between each ultrasonic probe and the barrier is big or small, processor of single chip computer is remembered the detection object at this place, write store, processor of single chip computer is ignored the detection of this barrier behind normal the startup.
The built-in control program of processor of single chip computer, can finish the duty that I/O is set, and initial each I/O mouth, send the signal of 40KHZ, receiving inputted signal, the signal Processing that receives, with analog signal conversion is digital signal, with the digital signal write buffer, the ultrasonic signal square wave that receives is in the distance of calculating respectively on the processor of single chip computer between ultrasonic probe and the barrier, and the distance that compares between each ultrasonic probe and the barrier is big or small, selection detects the signal output of the minimum ultrasonic probe of distance, processor of single chip computer transmission range and bearing signal are given to dsp processor, and vision signal that dsp processor is synthetic real-time and output are by display range of a signal and orientation.
Distance and bearing signal after dsp processor receives the data image signal of imageing sensor and receives the processor of single chip computer processing is through digital processing and synthetic, real-time range of a signal on video pictures, and the scale line of this segment distance position of glimmering.As shown in Figure 4, during clear, show little lines, when barrier, the line ficker and the overstriking of barrier recently, barrier shows " STOP " and flicker during less than 0.3m.
Claims (7)
1. video vehicle back radar, it is made up of ultrasonic sensor, camera, display, ultrasonic sensor match circuit, verbal cue circuit, ultrasonic emitting and received signal circuit and processor of single chip computer, it is characterized in that: camera is provided with a dsp processor, dsp processor receives digital image signal, simulating signal is handled and synthesized to the distance and bearing signal in real time, in real time range of a signal and the scale of flicker is provided at this distance and position on screen.
2. a kind of video vehicle back radar according to claim 1, it is characterized in that: the dsp processor circuit is by integrated package U2, resistance, electric capacity, triode Q1 and crystal oscillator X1 form, picture signal is directly imported (D0～D9) to dsp processor from imageing sensor integrated package U1, the external EEPROM integrated package of dsp processor U3, built-in handling procedure of EEPROM integrated package U3 and picture, the distance and bearing signal that dsp processor provides according to processor of single chip computer integrated package U8, synthetic real-time and dynamic vision signal, vision signal is input to display through resistance R 2 at triode Q1 ground level.
3. a kind of video vehicle back radar according to claim 1, it is characterized in that: processor of single chip computer regularly sends ultrasonic pulse signal, send to more than one ultrasonic probe the ultrasonic pulse signal cycle assignment through channel selecting, ultrasonic probe receives the signal that barrier fires back, through frequency-selecting, amplify and comparator circuit, signal is transferred to processor of single chip computer, processor of single chip computer is according to calculated signals ultrasonic probe that receives and the distance between the barrier, and the distance that compares between each ultrasonic probe and the barrier is big or small, draws the nearest distance of barrier and ultrasonic probe, the orientation; Afterwards, processor of single chip computer output corresponding signal is to dsp processor.
4. a kind of video vehicle back radar according to claim 1, it is characterized in that: ultrasonic emitting is to be sent by the processor of single chip computer plug-in, select open-minded by channel switching circuit, give ultrasonic probe with the ultrasonic pulse signal cycle assignment, the work of control ultrasonic probe, the integrated package U6 that each ultrasonic probe is selected by ultrasonic probe match circuit and control channel links to each other.
5. a kind of video vehicle back radar according to claim 1, it is characterized in that: ultrasonic reception is the integrated package U6 that is selected by ultrasonic probe and control channel, through frequency-selecting and amplification, signal connects the secondary amplification comparator circuit that integrated package U7B forms from the output pin of the integrated package U6 that control channel is selected, on this circuit, add adjustable resistance R59, regulate sensitivity, three-stage amplifier through being made up of integrated package U7A again, the signal that amplification ratio is obtained complete square wave after is input to processor of single chip computer integrated package U8.
6. a kind of video vehicle back radar according to claim 1, it is characterized in that: voice warning circuit is by voice integrated package U9, resistance, electric capacity, power discharging integrated block U13 and loudspeaker are formed, processor of single chip computer will receive the ultrasonic signal square wave that comes and calculate respectively, and the distance that compares between each ultrasonic probe and the barrier is big or small, draw the orientation of barrier, distance, simultaneously the corresponding instruction signal is outputed to voice integrated package U9, voice integrated package U9 is by 16 pin, through capacitor C 29, be input to power discharging integrated block U13 after the resistance R 42, power discharging integrated block U13 drives the voice suggestion that loudspeaker send distance.
7. a kind of video vehicle back radar according to claim 1, it is characterized in that: power supply is imported by automobile storage battery, by diode and inductance, the filtering of electric capacity, step-down, voltage stabilizing, behind integrated package U10, U11, U12, export 5V, 8V and 3.3V DC voltage respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290680103U CN201716417U (en) | 2010-02-02 | 2010-02-02 | Visible car reversing aid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010290680103U CN201716417U (en) | 2010-02-02 | 2010-02-02 | Visible car reversing aid system |
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| Publication Number | Publication Date |
|---|---|
| CN201716417U true CN201716417U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010290680103U Expired - Fee Related CN201716417U (en) | 2010-02-02 | 2010-02-02 | Visible car reversing aid system |
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| Country | Link |
|---|---|
| CN (1) | CN201716417U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323588A (en) * | 2011-08-29 | 2012-01-18 | 沈阳工业大学 | Reversing radar automatic stop device |
| CN102621541A (en) * | 2011-01-26 | 2012-08-01 | 英华达（南京）科技有限公司 | Method for using mobile phone as vehicle reversing radar display |
| CN103386924A (en) * | 2013-07-12 | 2013-11-13 | 太仓市豪阳汽车内饰件有限公司 | Vehicle stopping early-warning device |
| CN105818763A (en) * | 2016-03-09 | 2016-08-03 | 乐卡汽车智能科技（北京）有限公司 | Method, device and system for confirming distance of object around vehicle |
| CN105905034A (en) * | 2016-05-24 | 2016-08-31 | 广西师范大学 | Automatic camera system for automobile backing |
| CN106772397A (en) * | 2016-12-14 | 2017-05-31 | 深圳市歌美迪电子技术发展有限公司 | Vehicle data processing method and vehicle radar system |
| CN109001740A (en) * | 2018-06-20 | 2018-12-14 | 苏州工业园区职业技术学院 | A kind of car radar imaging system |
| CN109597430A (en) * | 2019-01-18 | 2019-04-09 | 东北农业大学 | The UAV system of dimension analysis is risen based on photo |
| WO2022126956A1 (en) * | 2020-12-15 | 2022-06-23 | 青岛海信激光显示股份有限公司 | Laser projection device and prompt method therefor |
-
2010
- 2010-02-02 CN CN2010290680103U patent/CN201716417U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621541A (en) * | 2011-01-26 | 2012-08-01 | 英华达（南京）科技有限公司 | Method for using mobile phone as vehicle reversing radar display |
| CN102323588A (en) * | 2011-08-29 | 2012-01-18 | 沈阳工业大学 | Reversing radar automatic stop device |
| CN103386924A (en) * | 2013-07-12 | 2013-11-13 | 太仓市豪阳汽车内饰件有限公司 | Vehicle stopping early-warning device |
| CN105818763A (en) * | 2016-03-09 | 2016-08-03 | 乐卡汽车智能科技（北京）有限公司 | Method, device and system for confirming distance of object around vehicle |
| CN105818763B (en) * | 2016-03-09 | 2018-06-22 | 睿驰智能汽车（广州）有限公司 | A kind of method, apparatus and system of determining vehicle periphery object distance |
| CN105905034A (en) * | 2016-05-24 | 2016-08-31 | 广西师范大学 | Automatic camera system for automobile backing |
| CN106772397A (en) * | 2016-12-14 | 2017-05-31 | 深圳市歌美迪电子技术发展有限公司 | Vehicle data processing method and vehicle radar system |
| CN109001740A (en) * | 2018-06-20 | 2018-12-14 | 苏州工业园区职业技术学院 | A kind of car radar imaging system |
| CN109597430A (en) * | 2019-01-18 | 2019-04-09 | 东北农业大学 | The UAV system of dimension analysis is risen based on photo |
| CN109597430B (en) * | 2019-01-18 | 2023-04-18 | 东北农业大学 | Unmanned aerial vehicle system based on photo dimension-rising analysis |
| WO2022126956A1 (en) * | 2020-12-15 | 2022-06-23 | 青岛海信激光显示股份有限公司 | Laser projection device and prompt method therefor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20140202 |