CN2756492Y - Multifunction screen display language position prompting backing vehicle indication - Google Patents
Multifunction screen display language position prompting backing vehicle indication Download PDFInfo
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- CN2756492Y CN2756492Y CN 03267296 CN03267296U CN2756492Y CN 2756492 Y CN2756492 Y CN 2756492Y CN 03267296 CN03267296 CN 03267296 CN 03267296 U CN03267296 U CN 03267296U CN 2756492 Y CN2756492 Y CN 2756492Y
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Abstract
The utility model provides a multifunction screen display language position prompting backing vehicle indicator, which belongs to the field of vehicle signal devices. The utility model is characterized in that a camera installed at the back of the vehicle and more than one ultrasonic probe are utilized, and the ultrasonic probes are controlled by a single chip computer to emit ultrasonic; the single chip computer processor carries out calculation and comparison to electrical signals received by each of the ultrasonic probes and obtain the distance and direction of a closest obstacle; the distance and the direction are displayed on a picture taken by the camera through the superposition of a screen display, and a voice prompt emits reading reporting sounds. The utility model has the advantages that the structure of each functional circuit is simple, and the voice and the screen are used to promote and display the distance of between the vehicle and the obstacle and the direction of the obstacle. The utility model can be used for backing of various vehicles.
Description
The multi-functional screen display language of technical field the utility model orientation prompting reversing indicating device belongs to signals of vehicles device field, particularly relates to a kind of vehicle backing indicating device.
Background technology for a long time, the reversing automobile backsight is bad to be a great problem of automobile driver always, particularly abominable in climate environment, under the narrow and small situation of stop position, collision occurs easily.Existing a kind of reversing alarm set, the detection principle that it utilizes ultrasonic emitting to receive when reversing automobile, has buzzer phone prompting sounding, charactron shows the distance of obstacle, but can not specifically know the situation of the tailstock and orientation, size and the shape of tailstock obstacle in detail.And the another kind of reversing gear that camera is housed, chaufeur can be recognized the situation of the tailstock, but can not accurately know the distance of obstacle, there is the dead angle in camera simultaneously.Above reversing gear all is one-side driver assistance person's reversing.During reversing, chaufeur will visually be judged between a moment in the distance of automobile tail and obstacle, judges orientation, the shape of the obstacle of automobile tail again, has increased the work difficulty of chaufeur.
The content the purpose of this utility model of utility model is to avoid the deficiencies in the prior art, and provides a kind of circuit structure simple, carries little reversing device indicating in the multi-functional screen display language orientation of vision, driver assistance person's reversing acoustically simultaneously.
The purpose of this utility model reaches by following measure, chaufeur is by being installed in the camera behind the car, situation behind the car that is absorbed, being sent to screen display shows, with the environment behind the understanding car, the ultrasonic transduter received signal connects by circuit through distance, the orientation of the obstacle that micro controller system computing, processing obtain, stack simultaneously is presented at camera and takes the photograph on the picture, and by the verbal cue circuit, accurately enter for out the orientation and the distance of obstacle, thereby improve chaufeur reversing safety and accuracy.It is by ultrasonic transduter, camera, and screen display, the ultrasonic transduter matching circuit, the verbal cue circuit, ultrasonic emitting and received signal circuit, the video superimpose circuit, power circuit, processor of single chip computer is formed.Power circuit is that electrofiltration ripple, step-down, mu balanced circuit are formed, and obtains 6 volts and 8 volts of tributary voltages respectively, for processor of single chip computer and each circuit provide DC regulated power supply.The signal of camera picked-up picture by the video superimpose circuit, outputs to screen display, thus the environment after demonstrating car on the screen display.Processor of single chip computer timed sending 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 obstacle reflects respectively, through frequency-selecting, amplify and comparator circuit, transmit signal 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 obstacle, and the distance that compares between each ultrasonic probe and the obstacle is big or small, draw the nearest distance of obstacle and ultrasonic probe, the orientation, micro controller system output corresponding signal shows superimposed circuit to video, stack demonstrates distance values on full-screen panel, the obstacle orientation, the corresponding instruction of micro controller system output simultaneously signal, the control language cue circuit, the loudspeaker of verbal cue circuit drives screen display send alarm sound, remind chaufeur.
Power circuit of the present utility model is to be imported by automobile storage battery, by diode and inductance, the filtering of electric capacity, step-down, voltage stabilizing are by 8 volts of vdcs of ic chip 7 back outputs, pass through filtering, step-down, the voltage stabilizing of resistance and electric capacity again, by 6 volts of vdcs of ic chip 8 back outputs.
Ultrasonic emitting is to be sent by processor of single chip computer IC1 plug-in, and two D triggering ic chips 6 of process and ic chip 10 channel selecting are opened and given ultrasonic probe with the ultrasonic pulse signal cycle assignment, the work of control ultrasonic probe.The ic chip 10 that each ultrasonic probe is selected by ultrasonic probe matching circuit and control channel links to each other, the ultrasonic probe matching circuit is made up of adjustable inductance and aerotron, aerotron links to each other with ic chip 10 by resistance, adjustable inductance connects aerotron and ultrasonic probe, and ic chip 10 connects ultrasonic probe by diode.
Ultrasonic reception is the ic chip of being selected by ultrasonic probe and control channel 10, and through frequency-selecting and amplification, amplification integrated block IC 5 is input to processor of single chip computer IC1.The ic chip 10 that the signal that ultrasonic probe detects is selected through input control channel after the filtering of diode, electric signal is connected the one-level amplifying circuit that ic chip 5 is formed from the output pin of the ic chip 10 that control channel is selected, pass through the secondary selective frequency amplifier circuit of forming by ic chip 5 again, filter interfering signal, connect the three-stage amplifier of forming by ic chip 5 again, on ic chip 5, connect adjustable resistance, adjust the sensitivity of three-stage amplifier, be input to amplifying signal on the comparator ic chip 5 and complete square wave of the relatively back output of reference voltage.
The video superimpose circuit is by ic chip 2, resistance, and electric capacity, inductance and aerotron are formed.The picture signal that camera is taken the photograph is by IC2, and output is presented on the screen display.Distance, the bearing signal of the obstacle that micro controller system computing simultaneously, processing obtain are handled by IC2, are superimposed upon camera take the photograph on the screen display picture displayed.Camera signals amplifies through aerotron and is input to ic chip 2, through the processing output of ic chip 2, amplifies through aerotron, is input to screen display at the emitter-base bandgap grading of aerotron, and the shown picture of screen display is exactly the picture that camera absorbs.Micro controller system IC1 connects IC2, the signal of the distance and bearing of micro controller system calculation process gained obstacle inputs to IC2, the signal of camera signals and micro controller system IC1 is through the processing of IC2, export from IC2 together with camera signals, through C27, Q8 is superimposed upon the distance of obstacle, orientation on the picture that camera takes the photograph.
The verbal cue circuit is by ic chip 4, voice ic chip 3, and resistance and electric capacity are formed.The ultrasonic signal square wave that processor of single chip computer IC1 receives calculates distance between ultrasonic probe and the obstacle respectively at processor of single chip computer IC1, and the distance that compares between each ultrasonic probe and the obstacle is big or small, according to the distance of obstacle, orientation, output corresponding instruction signal to voice ic chip 3, pass through power discharging integrated block IC4 processing and amplifying again, on the loudspeaker of screen display, send verbal cue, processor of single chip computer IC1 sends the voice apart from minimum value, enters for out concrete obstacle orientation simultaneously.
The built-in control program of processor of single chip computer IC1, can finish the mode of operation that I/O is set, and initial I/O, the signal of transmission 40KHZ, receiving inputted signal, the signal conditioning that receives, with analog signal conversion is digital signal, and with the digital signal write buffer, output signal is to IC2, thereby on screen display, demonstrate the distance and bearing of obstacle, the control language prompting.
When needs are moveed backward, the reversing indicating device begins energising work, mu balanced circuit offers processor of single chip computer IC1 and other circuits needed burning voltage, camera is with situation about being taken the photograph, be presented on the screen display, the built-in control program of processor of single chip computer IC1 sends the superaudio impulse singla, give each ultrasonic probe through channel selecting with the ultrasonic pulse signal cycle assignment, add superaudio voltage by the ultrasonic probe matching circuit to ultrasonic probe, ultrasonic probe sends super sonic, the super sonic that sends is met the obstacle reflection, receive through ultrasonic probe, obtain electric signal, through multistage amplification, frequency-selecting, filtering is input on the comparator ic chip 5 complete square wave of output and is input to processor of single chip computer IC1 and carries out numerical value and handle, each passage of processor of single chip computer IC1 scan round, in a circulation, processor of single chip computer IC1 will receive the square-wave signal of input 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 obstacle, and the distance that compares between each ultrasonic probe and the obstacle is big or small, draw minimum distance, processor of single chip computer IC1 issues a signal to ic chip 2 according to azimuth-range, and this numerical value and orientation is presented on the screen display, send signal simultaneously and give the verbal cue circuit, the different impulse singla of processor of single chip computer IC1 output drives the loudspeaker of screen display, azimuth-range according to obstacle, send the language alarm sound that conforms to it, remind chaufeur.
The utility model is to utilize camera and many group ultrasonic probes, camera is installed in automobile tail, ultrasonic emitting and received signal circuit are provided with a plurality of ultrasonic probes, processor of single chip computer timed sending ultrasonic pulse signal, send to a plurality of ultrasonic probes the ultrasonic pulse signal cycle assignment through channel selecting, a plurality of ultrasonic probes can be separately positioned on front portion, rear portion, and each position of side of automobile.Camera is arranged on automobile rear.
Each functional circuit of the utility model is simple in structure, stable performance, installation and observation are convenient, can be by the situation of full-screen panel display automobile afterbody and the distance and bearing of obstacle, enter for the distance and bearing of obstacle simultaneously with language, improve the safety of automobile when reversing, can be widely used in various vehicle backings and use.
Description of drawings
Accompanying drawing 1 is an electrical block diagram of the present utility model.
Accompanying drawing 2 is schematic circuit diagram of the present utility model.
Accompanying drawing 3 is schematic circuit diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model is a situation about utilizing behind the car that camera absorbs, and shows on screen display, many simultaneously group ultrasonic emitting and received signal, after being handled by micro controller system, output shows distance, the orientation of obstacle on screen display, and the language alarm prompting is arranged.It is by camera, the verbal cue circuit, and the video superimpose circuit, ultrasonic emitting and received signal circuit, power circuit, processor of single chip computer, ultrasonic probe and ultrasonic probe matching circuit are formed.Ultrasonic probe is by the control of ultrasonic probe matching circuit, ultrasonic emitting and received signal circuit are provided with 4 ultrasonic probes, processor of single chip computer timed sending ultrasonic pulse signal, send to 4 ultrasonic probes the ultrasonic pulse signal cycle assignment through channel selecting, 4 ultrasonic probes are separately positioned on one on the left side of automobile tail, one on the right, two at middle part.Power circuit provides DC regulated power supply for processor of single chip computer and each circuit, processor of single chip computer timed sending ultrasonic pulse signal, ultrasonic transmit circuit sends to ultrasonic probe, ultrasonic probe receives the signal that obstacle 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 obstacle, and the distance that compares between each ultrasonic probe and the obstacle is big or small, micro controller system output signal successively instructs the verbal cue circuit to carry out verbal cue, simultaneously processor of single chip computer with the pairing ultrasonic probe of this output signal by being input to the video superimpose circuit, the orientation of minor increment between ultrasonic probe and the obstacle is determined in the position that shows ultrasonic probe on screen display.Camera is arranged on the suitable position of automobile tail.
As shown in Figure 2, power circuit 4 of the present utility model is to be imported by automobile storage battery, by diode and inductance, the filtering of electric capacity, step-down, voltage stabilizing, by 8 volts of tributary voltages of integrated package of pressure-stabilizing IC7 (7808) back output, pass through filtering, step-down, the voltage stabilizing of resistance and electric capacity again, by 6 volts of tributary voltages of integrated package of pressure-stabilizing IC8 (7806) back output.
Ultrasonic probe matching circuit 1 of the present utility model is provided with 4 ultrasonic probe J2, J3, J4 and J5, and 4 ultrasonic probes are separately positioned on one on the left side of automobile tail, one on the right, two at middle part.The ic chip 10 (4052) that ultrasonic probe J2 selects by ultrasonic probe matching circuit and control channel links to each other, add superaudio voltage by the ultrasonic probe matching circuit to ultrasonic probe, the ultrasonic probe matching circuit is made up of adjustable inductance T1 and aerotron Q1, aerotron Q1 links to each other by 12 pin of resistance with ic chip 10 (4052), adjustable inductance connects aerotron and ultrasonic probe, and ic chip 10 (4052) connects ultrasonic probe J2 by diode D1, D2.
Super sonic acceptor circuit 3 of the present utility model is that the super sonic that ultrasonic probe sends is met the obstacle reflection, receive through ultrasonic probe, 1 pin of the ic chip 10 (4052) that input control channel is selected after the filtering of signal process diode D1, D2 that ultrasonic probe detects, 3 pin output by ic chip 10 (4052), this electric signal is very faint, and be the electric signal that is in a mess, handle, input to processor of single chip computer IC1 through filtering, frequency-selecting, amplification and comparator circuit.Ic chip 5 (TL084) is the integrated package with amplification, 4 volts of one-level amplifying circuits of forming of half voltage of IC5B, R14, C2 and 8 volts, and the one-level amplifying circuit makes signal obtain amplifying, and filters low frequency signal simultaneously.Secondary selective frequency amplifier circuit through being made up of IC5C, R15, R18, R19, C8, C9 again, the secondary selective frequency amplifier circuit further amplifies filter frequently with signal, only allows the ultrasonic frequency of 40KHZ to pass through, amplification again, the super sonic of the 40KHZ frequency that obtains amplifying.Connect the three-stage amplifier of being made up of IC5D, C12, R20 and adjustable resistance W1 again, three-stage amplifier further amplifies signal, and adjustable resistance W1 adjusts the sensitivity of amplifying circuit.Amplifying signal is input on the comparator circuit of being made up of IC5A, R21-R25, C13-C15 and D7, and relatively output complete square wave signal in back inputs to processor of single chip computer IC1.
As shown in Figure 3, the built-in control program of the utility model processor of single chip computer IC1 (PIC16C62B), can finish the mode of operation that I/O is set, and initial each I/O mouth, send the signal of 40KHZ, receiving inputted signal, the signal conditioning that receives, with analog signal conversion is digital signal, and with the digital signal write buffer, the ultrasonic signal square wave that receives calculates distance between ultrasonic probe and the obstacle respectively at processor of single chip computer IC1 (PIC16C62B), and the distance that compares between each ultrasonic probe and the obstacle is big or small, the signal output of chosen distance minimum, by screen display range of a signal and orientation, the control language prompting.
The utility model is in when reversing, by the situation that screen display is observed the car back, and the distance of obstacle, orientation, and send left, center, right, voice orientation is quoted apart from digital speech from 0.35 meter to 2 meters etc., can quote other voice suggestion as required.
The utility model is installed, and is simple to operate.Camera is installed in the afterbody of automobile; Four ultrasonic transduters are installed in one on the left side of automobile tail, middle two, one on the right respectively; Screen display can be put in position by adjusting.
Claims (9)
1, a kind of multi-functional screen display language orientation prompting reversing indicating device, by the probe matching circuit, the verbal cue circuit, ultrasonic emitting and received signal circuit, power circuit, processor of single chip computer, camera and screen display are formed, it is characterized in that ultrasonic emitting and received signal circuit are by more than one ultrasonic probe, channel selecting, frequency-selecting, amplifying circuit is formed, processor of single chip computer timed sending ultrasonic pulse signal, send to more than one ultrasonic probe the ultrasonic pulse signal cycle assignment through channel selecting, processor of single chip computer will be imported the signal that receives respectively and carry out computing, relatively, processor of single chip computer sends command signal to verbal cue circuit and video superimpose circuit, the video superimpose circuit is by ic chip 2, resistance, electric capacity, inductance and aerotron are formed, and the picture signal that camera is taken the photograph passes through IC2, output is presented on the screen display, the distance of obstacle, bearing signal is handled by IC2, is superimposed upon camera take the photograph on the screen display picture displayed.
2, multi-functional screen display language orientation prompting reversing indicating device according to claim 1, it is characterized in that opening the ultrasonic pulse signal cycle assignment to ultrasonic probe by ic chip 10 channel selecting, the ic chip 10 that each ultrasonic probe is selected by ultrasonic probe matching circuit and control channel links to each other, the ultrasonic probe matching circuit is made up of adjustable inductance and aerotron, aerotron links to each other with ic chip by resistance, and adjustable inductance connects aerotron and ultrasonic probe.
3, multi-functional screen display language according to claim 1 orientation prompting reversing indicating device, it is characterized in that the ic chip 10 that signal that ultrasonic probe detects is selected through input control channel after the filtering of diode, electric signal is connected the one-level amplifying circuit that ic chip 5B forms from the output pin of the ic chip 10 that control channel is selected, pass through the secondary selective frequency amplifier circuit of forming by ic chip 5C again, connect the three-stage amplifier of forming by ic chip 5D again, amplifying signal is input on the comparator ic chip 5A, relatively export a complete square wave in the back with reference voltage, on ic chip 5D, connect adjustable resistance W1.
4, multi-functional screen display language orientation prompting reversing indicating device according to claim 1, amplification is input to ic chip 2 through aerotron to it is characterized in that camera signals, processing output through ic chip 2, amplify through aerotron, emitter-base bandgap grading at aerotron is input to screen display, and micro controller system IC1 connects IC2, and the signal of the distance and bearing of micro controller system calculation process gained obstacle inputs to IC2, from IC2 output, be superimposed upon on the picture that camera takes the photograph.
5, multi-functional screen display language orientation prompting reversing indicating device according to claim 1, it is characterized in that the verbal cue circuit is by power discharging integrated block IC4, voice ic chip 3, resistance and electric capacity are formed, signal output is to voice ic chip 4, pass through power discharging integrated block IC4 processing and amplifying again, send verbal cue on the loudspeaker of screen display, ic chip 3 connects potential device R54.
6, multi-functional screen display language orientation prompting reversing indicating device according to claim 1, it is characterized in that the built-in control program of processor of single chip computer IC1, the mode of operation of I/O is set, sends the signal of 40KHZ, receiving inputted signal, the signal conditioning that receives, with analog signal conversion is digital signal, with the digital signal write buffer, and control video superimpose circuit, stack shows the distance and bearing of obstacle on the picture of camera take the photograph at screen display, the control language prompting.
7, multi-functional screen display language orientation prompting reversing indicating device according to claim 1 is characterized in that ultrasonic emitting and received signal circuit can be provided with 4 ultrasonic probes, and camera is installed in the automobile tail appropriate location.
8, multi-functional screen display language according to claim 1 orientation prompting reversing indicating device, it is characterized in that ultrasonic emitting is to be sent by processor of single chip computer IC1 plug-in, 10 of the ic chip of selecting by ic chip 6 and control channel 10,9 pin link to each other, ic chip 6 binary pairs, through triggering ic chip 6 and opening the ultrasonic pulse signal cycle assignment to 4 ultrasonic probes by ic chip 10 channel selecting, the signal that ultrasonic probe detects is through diode D1,1 pin of the ic chip 10 that input control channel is selected after the filtering of D2,3 pin output by IC10, input to processor of single chip computer IC1 via IC5, the one-level amplifying circuit that IC5B forms, pass through the secondary selective frequency amplifier circuit that IC5C forms again, connect the three-stage amplifier of forming by IC5D again, on IC5D, connect adjustable resistance, amplifying signal is input on the comparator ic chip 5A, camera signals is through chemical capacitor C26, and amplify by aerotron Q7, be input to 18 pin of ic chip 2 from the aerotron emitter-base bandgap grading, processing through ic chip 2,17 pin output from IC2, through C27, the amplification of aerotron Q8, emitter-base bandgap grading at aerotron is input to screen display, 7 of micro controller system IC1,14,15,16 pin connect 1 of IC2 respectively, 2,3,4 foot control system ic chips 2, the distance of obstacle, the signal in orientation is from the output of 16 pin of IC1, and 4 pin by IC2 input to IC2, from the 17 pin output of IC2, through C27, Q8, the distance of obstacle, the orientation is superimposed upon on the picture of camera.
9, multi-functional screen display language orientation prompting reversing indicating device according to claim 8 is characterized in that crystal oscillator Y2, and C32 and C33 provide clock pulse signal to IC2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267296 CN2756492Y (en) | 2003-07-04 | 2003-07-04 | Multifunction screen display language position prompting backing vehicle indication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03267296 CN2756492Y (en) | 2003-07-04 | 2003-07-04 | Multifunction screen display language position prompting backing vehicle indication |
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| Publication Number | Publication Date |
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| CN2756492Y true CN2756492Y (en) | 2006-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03267296 Expired - Fee Related CN2756492Y (en) | 2003-07-04 | 2003-07-04 | Multifunction screen display language position prompting backing vehicle indication |
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| CN (1) | CN2756492Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009067854A1 (en) * | 2007-11-28 | 2009-06-04 | Weiwen Yan | Voice tips reversing indicator with wireless screen display |
| CN103802722A (en) * | 2012-11-14 | 2014-05-21 | 上海工程技术大学 | Intelligent automobile backing image and ultrasonic ranging system |
-
2003
- 2003-07-04 CN CN 03267296 patent/CN2756492Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009067854A1 (en) * | 2007-11-28 | 2009-06-04 | Weiwen Yan | Voice tips reversing indicator with wireless screen display |
| US8674847B2 (en) | 2007-11-28 | 2014-03-18 | Weiwen Yan | Wireless monitor voice indication parking indicator |
| CN103802722A (en) * | 2012-11-14 | 2014-05-21 | 上海工程技术大学 | Intelligent automobile backing image and ultrasonic ranging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20060208 Termination date: 20120704 |