CN107856606A - A kind of oversize vehicle side shows early warning system and implementation method - Google Patents
A kind of oversize vehicle side shows early warning system and implementation method Download PDFInfo
- Publication number
- CN107856606A CN107856606A CN201711390152.7A CN201711390152A CN107856606A CN 107856606 A CN107856606 A CN 107856606A CN 201711390152 A CN201711390152 A CN 201711390152A CN 107856606 A CN107856606 A CN 107856606A
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- China
- Prior art keywords
- circuit
- vehicle
- loudspeaker
- control circuit
- ultrasonic probe
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/804—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for lane monitoring
Abstract
Show early warning system and implementation method the invention discloses a kind of oversize vehicle side, the surface of face be equipped with camera before vehicle body, before with side be respectively arranged with ultrasonic probe, side is equipped with loudspeaker and LED display, and bottom surface is equipped with vehicle speed sensor；Main frame is installed in the car, monitor whether that other vehicles or pedestrians are walked from front or side by the ultrasonic probe of the camera at top, the ultrasonic probe in front and side, detecting front, there are objects moving, passes through video and audio alarm, so as to remind side vehicle, the generation of accident is avoided.The present invention can carry out combinational environment detection by front camera and ultrasonic sensor, analyze and judge whether there is pedestrian or vehicle to pass through in front of oversize vehicle, then warned again by the loudspeaker installed in oversize vehicle side and LED display to side vehicle, so as to reduce the probability that " ghost probe " accident occurs.
Description
Technical field
It is specifically a kind of to be arranged on oversize vehicle to identify simultaneously the present invention relates to image recognition and Display Technique
The signal that whether front has a pedestrian and vehicle passes through judged, and warning is made to side vehicle by light-emitting diode display and loudspeaker
Early warning system and implementation method.
Background technology
With the continuous growth of China's economic, national vehicle guaranteeding organic quantity is continuously increased, but increasing with motor vehicle, because
Traffic accident caused by motor vehicle is also on the increase.What is most often occurred is exactly " ghost probe " class accident.
So-called " ghost probe " is typically referred to when A cars surmount B cars, unexpected before B car headstocks or at the tailstock of reverse vehicle
There is the scene of pedestrian or vehicle.Meet that " ghost probe " is light then to allow the frightened emergency brake of driver, it is heavy then non-dead i.e. severe injury can occur
Traffic accident.
The oversize vehicle both sides of stopping are the places for being easiest to occur " ghost probe ", such as bus stop, and passenger is from public transport
After car is got on or off the bus, often being gone across the road at headstock, some children are possibly even directly leapt up out from public transport headstock and run across the street,
Simultaneously as bus is bulky, the pedestrian of headstock has been covered completely, therefore the driver of other vehicles is difficult to find, so as to
Cause unexpectedly to occur；The zebra stripes such as to flash the redlight again before, turn green that time in traffic lights, often there is pedestrian or electric car
Lucky punching at heart can be had in arms to make a dash across the red light, these pedestrians can not be observed by this moment resting in the vehicle driver of oversize vehicle side,
Again because traffic lights turns green, necessarily start to accelerate, so as to which tragedy occur.
The content of the invention
It is an object of the invention to provide a kind of oversize vehicle side to show source of early warning and operating method, and it can pass through
Front camera and ultrasonic sensor carry out combinational environment detection, analyze and judge whether to have in front of oversize vehicle pedestrian or
Then vehicle by the loudspeaker installed in oversize vehicle side and LED display to side vehicle by being warned, so as to drop again
The probability that low " ghost probe " accident occurs.
The present invention realizes above-mentioned purpose using following technical scheme.A kind of oversize vehicle side shows early warning system, including
Vehicle body, the surface of face is equipped with camera before the vehicle body, before and side be respectively arranged with ultrasonic probe, side dress
There are loudspeaker and LED display, bottom surface is equipped with vehicle speed sensor；
Main frame is installed in the vehicle body, central control circuit, battery management circuit, video letter are provided with the main frame
Number Acquisition Circuit, LED screen drive circuit, storage circuit, ultrasonic listening circuit, loudspeaker driving circuit, outside control electricity
Road and Bus- Speed Monitoring circuit；Central control circuit respectively with power supply and battery management circuit, video signal collective circuit, LED screen
Curtain drive circuit, storage circuit, ultrasonic listening circuit, loudspeaker driving circuit, external control circuit and Bus- Speed Monitoring circuit
It is connected；
Camera electrically connects with video signal collective circuit；Ultrasonic probe electrically connects with ultrasonic listening circuit；Loudspeaker with
Loudspeaker driving circuit electrically connects；LED display electrically connects with LED screen drive circuit；Vehicle speed sensor and Bus- Speed Monitoring electricity
Road electrically connects.
A kind of implementation method of oversize vehicle side display early warning system, its step are as follows：
1）By main frame installation in the car, main frame is connected with vehicle accumulator by power line, from storage battery power taking and by power supply and
Battery management circuit charges to main self-contained battery；
2）Video file is fitted into storage circuit by external control circuit, after central control circuit decodes, passes through LED screen
Curtain drive circuit and loudspeaker driving circuit driving LED display and loudspeaker, the signal in video file is broadcasted；
3）System can be always maintained at video broadcasting condition, when Bus- Speed Monitoring electric circuit inspection to vehicle deceleration, make when vehicle travels
After threshold value of the speed less than 20 kilometers/hour, the ultrasonic probe of the camera at top, the ultrasonic probe in front and side is opened
Beginning work, will detect vehicle-periphery by ultrasonic Doppler and digital image processing techniques, monitoring front or both sides
Pedestrian and vehicle；
4）Once top camera or front ultrasonic probe detect front, there are objects moving, the ultrasonic probe monitoring of side
There is vehicle to side, signal will be sent to central control circuit immediately, after being judged via central control circuit, center control
Circuit sends order to LED screen drive circuit and loudspeaker driving circuit, drives LED display and loudspeaker to side vehicle
Carry out video and audio alarm.
The advantage of the invention is that：First, combinational environment detection is carried out by image recognition technology and ultrasonic wave, ensure that
The reliability of result of detection.Secondly, warned using Voice ＆ Video multimedia, improve the probability that driver avoids risk, finally, be
Unite in not alarm condition, can improve utilization rate with playing video advertisement, avoid wasting.
Brief description of the drawings
Fig. 1 is installation effect schematic diagram of the present invention；Fig. 2 is the circuit design block diagram of the present invention；
Fig. 3 is the central control circuit figure of the present invention；Fig. 4 is the power supply and battery management circuit figure of the present invention；
Fig. 5 is the video signal collective circuit diagram of the present invention；Fig. 6 is the LED screen drive circuit figure of the present invention；
Fig. 7 is the storage circuit figure of the present invention；Fig. 8 is the ultrasonic listening circuit diagram of the present invention；
Fig. 9 is the loudspeaker driving circuit figure of the present invention；Figure 10 is the external control circuit figure of the present invention；
Figure 11 is the Bus- Speed Monitoring circuit diagram of the present invention；Figure 12 is the workflow diagram of the present invention.
In figure：100. main frame, 1. vehicle bodies, 2. cameras, 3. ultrasonic probes, 4. vehicle speed sensor, 5. loudspeakers,
6.LED display screens, 7. central control circuits, 8. power supplys and battery management circuit, 9. video signal collective circuits, 10.LED screens
Drive circuit, 11. storage circuits, 12. ultrasonic listening circuits, 13. loudspeaker driving circuits, 14. external control circuits, 15.
Bus- Speed Monitoring circuit.
Embodiment
Below in conjunction with drawings and examples, the invention will be further described.Referring to shown in Fig. 1 and Fig. 2, a kind of large car
Side shows early warning system, including vehicle body 1, and the surface of face be equipped with camera 2 before the vehicle body 1, before with
Side is respectively arranged with ultrasonic probe 3, and side is equipped with loudspeaker 5 and LED display 6, and bottom surface is equipped with vehicle speed sensor 4；The car
Main frame 100 is installed in body 1, central control circuit 7, battery management circuit 8, video letter are provided with the main frame 100
It is number Acquisition Circuit 9, LED screen drive circuit 10, storage circuit 11, ultrasonic listening circuit 12, loudspeaker driving circuit 13, outer
Portion's control circuit 14 and Bus- Speed Monitoring circuit 15；Central control circuit 7 respectively with power supply and battery management circuit 8, vision signal
Acquisition Circuit 9, LED screen drive circuit 10, storage circuit 11, ultrasonic listening circuit 12, loudspeaker driving circuit 13, outside
Control circuit 14 and Bus- Speed Monitoring circuit 15 are connected；Camera 2 electrically connects with video signal collective circuit 9；Ultrasonic probe 3
Electrically connected with ultrasonic listening circuit 12；Loudspeaker 5 electrically connects with loudspeaker driving circuit 13；LED display 6 and LED screen
Drive circuit 10 electrically connects；Vehicle speed sensor 4 electrically connects with Bus- Speed Monitoring circuit 15.
As shown in figure 3, central control circuit 7 is a single-chip microcomputer Barebone being made up of AT89S52 and its accessory circuit,
Start-oscillation circuit is formed by crystal oscillator XTAL and two 30PF electric capacity, by the discharge and recharge and button of electric capacity may be constructed electrification reset and
Button resets two kinds of reset modes, and also useful two lowering and stabilizing blood pressure chips of LM1117-3.3V and LM1117-2.5V can realize that 5V turns
Be changed to 3.3V and 2.5V needs circuit to meet voltage request for part.
As shown in figure 4, power supply and battery management circuit 8 are using TP4057 as main control chip, TP4057 can be adapted to USB
Power supply and adaptor power supplies work.As a result of internal PMOSFET frameworks, plus anti-charging circuit, so outside need not examine
Measuring resistance device and isolating diode.Charging current can be adjusted for Thermal feedback, so as in high-power operation or high environment temperature
Under the conditions of chip temperature is any limitation as.Charging voltage is fixed on 4.2V, and charging current can be outer by a resistor progress
Portion is set.When charging current is being down to setting value 1/10 after reaching final float charge voltage, TP4057 fills automatic termination
Electricity circulation.And MC34063 chips contain the monolithic control circuit and price of the major function required for DC/DC converters in itself
Cheaply.It is by the controllable oscillator of the pedestal generator with temperature self-compensation function, comparator, dutycycle, R-S
Trigger and High-current output on-off circuit etc. form.The device can be used for the control of booster converter, buck converter, reverser
Core processed, the DC/DC converters being made up of it are only with a small amount of external component.Be mainly used in microprocessor (MPU) or
In system based on single-chip microcomputer (MCU).Red light represents underfill in power supply and battery management circuit, and green light represents to be full of.
As shown in figure 5, video signal collective circuit 9 is using high pass AR9331 as main control chip, AR9331 is a height
Integrated, inexpensive IEEE 802.11n 1*1 MIMO WiFi SoC, produced suitable for low side wireless router, wireless aps etc.
Product.AR9331 employs MIPS 24Kc kernels（This and Mediatek RT3352 extraordinary images）, be integrated with 1 five port 100,000,000 with
Complete wireless router product can be achieved in too network switch, 1 interface of USB 2.0,1 DDR/DDR2 controller, monolithic.
Real-time video transmission can be realized plus peripheral circuit with AR9331.
As shown in fig. 6, LED screen drive circuit 10 is enough to LED by 74F138 selector channels connecting triode
Driving current lights it.74F138 is three or eight decoders of high speed.74F138 has higher speed compared with 74LS138.When
When choosing 74F138 delivery outlet, mouth output low level, triode is that conducting chooses liquid crystal display to light.
Stored as shown in fig. 7, storage circuit 11 is the FLASH being made up of M25P16, M25P16 is a to be write with advanced
The 2M byte serial flash storages of protection mechanism and high speed SPI bus access, the memory main feature：2M bytes are deposited
Space is stored up, point 32 sectors, each sector page 256, every page of 256 bytes；It is (typical for 1.4 ms the time required to writing 1 page data
Value)；Can monolithic erasing and monoblock erasing：2.7~3.6 V single supply supply voltages；Spi bus and 50 MHz data transfer clocks
Frequency；Ensure 100,000 times per sector erasable number, data retention period limits at least 20 years.This device is beaten especially suitable for integration
Print machine, PC mainboards, set top box, CD-audio player and DVD video disc players, DTV, digital camera, graphics card and flat-panel screens etc. are each
The code and data storage requirement of kind application.Wherein Q outputs serial data, D input serial datas, the input of C serial clocks, HOLD
Control terminal, W write-protects.
As shown in figure 8, ultrasonic listening circuit 12 is directly to use URM37 ultrasonic distance measuring modules.Ultrasonic sensor
It is that ultrasonic signal is converted into other energy signals（Typically electric signal）Sensor.Ultrasonic wave is that vibration frequency is higher than
20KHz mechanical wave.It has that frequency is high, wavelength is short, diffraction phenomenon is small, particularly good directionality, can turn into ray depending on
To the features such as propagation.Ultrasonic wave is very big to the penetrating power of liquid, solid, especially in the opaque solid of sunlight.Ultrasound
Ripple, which encounters impurity or interface, can be produced significantly to reflect to form and be reflected into echo, and Doppler effect can be produced by encountering mobiles.
As shown in figure 9, loudspeaker driving circuit 13 is to receive the signal from single-chip microcomputer by speech chip WTV040 to drive
Dynamic loudspeaker alarm.WTV sequence of speech chips are a powerful one-off programming speech chips, and voice is 6K sampling frequencies
During rate, memory length can respectively reach 10 seconds, 20 seconds, 40 seconds, 80 seconds, 170 seconds, 340 seconds, and audio output is PWM or DAC moulds
Formula.Optional control mode has button control model, key combination control model, parallel port control pattern, serial ports control model etc..Press
The triggering mode of key control pattern is flexible；Volume is can control under serial ports pattern, power amplifier is opened or closed, has loop play and stopping
Function.
As shown in Figure 10, external control circuit 14 is four buttons of Bus- Speed Monitoring circuit and encoder composition, can be utilized
Less I/O port coordinates more control functions.
As shown in figure 11, Bus- Speed Monitoring circuit 15 is to detect speed by Hall sensor, by signal pre-processing circuit,
It is stored in after single-chip microcomputer is handled in AT24C02.Hall sensor can be by their application point by detected Properties of Objects
For：Directly application and indirect application.The former is directly to detect object under inspection magnetic field in itself or magnetic characteristic, and the latter is detection
The magnetic field artificially set on detected object, the carrier of detected information is made of this magnetic field, by it, by many non-electrical,
Non-magnetic physical quantity such as power, torque, pressure, stress, position, displacement, speed, acceleration, angle, angular speed, revolution, rotating speed
And time for changing of working condition etc., it is transformed into electricity to be detected and be controlled.
As shown in figure 12, it is visible according to workflow diagram of the present invention, after system work starts, first determine whether speed is small
In 20 kilometers/hour：If it is greater, then call storage video, decode by central control circuit and drive LED and screen with
Loudspeaker plays；If speed is less than 20 kilometers/hour, into identification state, vehicle is judged by ultrasonic wave and camera
Whether front and side have object, persistently differentiate if without if, if so, then driving LED and screen by central control circuit
Curtain and loudspeaker alarm.
Its job step of the invention is as follows：
The first step, the system installation is outer in the car, main frame 100 is connected with vehicle accumulator by power line, from storage battery power taking
And into main frame 100, battery charges by power supply and battery management circuit 8.
Second step, advertisement video file is fitted into storage circuit 11 by external control circuit 14, through center control electricity
After road 7 decodes, LED display 6 and loudspeaker 5 are driven by LED screen drive circuit 10 and loudspeaker driving circuit 13, will be wide
Video playback is accused to come out.
3rd step, system can be always maintained at advertisement broadcast state when vehicle travels, when Bus- Speed Monitoring circuit 15 detects
Vehicle deceleration, after making threshold value of the speed less than 20 kilometers/hour, top camera 2, front ultrasonic probe 3 and side ultrasound
Ripple probe 4 is started working, and they will detect vehicle-periphery by ultrasonic Doppler and digital image processing techniques, and monitoring is
No to have other vehicles or pedestrians to be crossed from front, whether monitoring vehicle both sides have other vehicles.
4th step, once top camera 2 or front ultrasonic probe 3 detect front, there are objects moving, side ultrasound
Ripple probe 4 monitors that there is vehicle side, will send signal to central control circuit 7 immediately, and make and sentencing via central control circuit 7
Have no progeny, central control circuit 7 sends order to LED screen drive circuit 10 and loudspeaker driving circuit 13, drives LED display
6 and loudspeaker 5 carry out video and audio alarm to side vehicle, so as to remind side vehicle, avoid the generation of accident.
Claims (2)
1. a kind of oversize vehicle side shows early warning system, including vehicle body, it is characterised in that face before the vehicle body
Surface is equipped with camera, before and side be respectively arranged with ultrasonic probe, side be equipped with loudspeaker and LED display, and bottom surface fills
There is vehicle speed sensor；
Main frame is installed in the vehicle body, central control circuit, battery management circuit, video are provided with the main frame
Signal acquisition circuit, LED screen drive circuit, storage circuit, ultrasonic listening circuit, loudspeaker driving circuit, outside control
Circuit and Bus- Speed Monitoring circuit；Central control circuit respectively with power supply and battery management circuit, video signal collective circuit, LED
Screen driver circuit, storage circuit, ultrasonic listening circuit, loudspeaker driving circuit, external control circuit and Bus- Speed Monitoring electricity
Road is connected；
Camera electrically connects with video signal collective circuit；Ultrasonic probe electrically connects with ultrasonic listening circuit；Loudspeaker with
Loudspeaker driving circuit electrically connects；LED display electrically connects with LED screen drive circuit；Vehicle speed sensor and Bus- Speed Monitoring electricity
Road electrically connects.
2. a kind of oversize vehicle side according to claim 1 shows the implementation method of early warning system, it is characterised in that its
Step is as follows：
1）By main frame installation in the car, main frame is connected with vehicle accumulator by power line, from storage battery power taking and by power supply and
Battery management circuit charges to main self-contained battery；
2）Video file is fitted into storage circuit by external control circuit, after central control circuit decodes, passes through LED screen
Curtain drive circuit and loudspeaker driving circuit driving LED display and loudspeaker, the signal in video file is broadcasted；
3）System can be always maintained at video broadcasting condition, when Bus- Speed Monitoring electric circuit inspection to vehicle deceleration, make when vehicle travels
After threshold value of the speed less than 20 kilometers/hour, the ultrasonic probe of the camera at top, the ultrasonic probe in front and side is opened
Beginning work, will detect vehicle-periphery by ultrasonic Doppler and digital image processing techniques, monitoring front or both sides
Pedestrian and vehicle；
4）Once top camera or front ultrasonic probe detect front, there are objects moving, the ultrasonic probe monitoring of side
There is vehicle to side, signal will be sent to central control circuit immediately, after being judged via central control circuit, center control
Circuit sends order to LED screen drive circuit and loudspeaker driving circuit, drives LED display and loudspeaker to side vehicle
Carry out video and audio alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390152.7A CN107856606A (en) | 2017-12-21 | 2017-12-21 | A kind of oversize vehicle side shows early warning system and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390152.7A CN107856606A (en) | 2017-12-21 | 2017-12-21 | A kind of oversize vehicle side shows early warning system and implementation method |
Publications (1)
| Publication Number | Publication Date |
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| CN107856606A true CN107856606A (en) | 2018-03-30 |
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ID=61706702
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Cited By (4)
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| CN108766002A (en) * | 2018-07-18 | 2018-11-06 | 江西师范大学 | A kind of traffic lights identification and prior-warning device for oversize vehicle |
| CN108973859A (en) * | 2018-06-14 | 2018-12-11 | 合肥工业大学 | A kind of terrible Preventing Traffic Accident System and method of popping one's head in |
| DE102019219658A1 (en) * | 2019-12-16 | 2021-06-17 | Volkswagen Aktiengesellschaft | System and method for displaying a view obscured by an object for a road user |
| US11774567B2 (en) | 2021-09-30 | 2023-10-03 | Luxshare-Ict Co., Ltd. | Graphical ultrasonic module and driver assistance system |
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