CN107487257A - A kind of omnidirectional vehicle collision early warning system and its method - Google Patents
A kind of omnidirectional vehicle collision early warning system and its method Download PDFInfo
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- CN107487257A CN107487257A CN201710637186.5A CN201710637186A CN107487257A CN 107487257 A CN107487257 A CN 107487257A CN 201710637186 A CN201710637186 A CN 201710637186A CN 107487257 A CN107487257 A CN 107487257A
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
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- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of omnidirectional vehicle collision early warning system, including collision early warning system processing platform；Sound and light alarm display system；Camera；Remote control terminal：Remote control terminal is connected by wireless communication module with collision early warning system processing platform signal, monitors whether automobile collides by Wireless remote control.The present invention utilizes laser or ultrasonic wave and the distance of camera real-time detection vehicle and barrier, by judging vehicle headway change and relative velocity, so as to judge the motion state of front truck, belong to which theoretical model of collision-proof alarm with this car so as to be inferred to front truck, and select corresponding model to calculate danger warning distance and reminding alarm distance；When actual spacing is less than or equal to alarm distance, system can produce some alarm signals and carry out alerting drivers, remind driver to care should be taken to drive or should take the brake measure of correlation immediately, so as to effectively prevent or reduce the generation of traffic accident.
Description
Technical field
The invention belongs to automobile technical field, more specifically, more particularly to a kind of omnidirectional vehicle anticollision early warning system
System.Meanwhile the invention further relates to a kind of method of omnidirectional vehicle anticollision early warning.
Background technology
Since 21 century, Chinese auto industry has the development advanced by leaps and bounds, and millions upon millions of individual families are owned by
The automobile of oneself, on and off duty or amusement and travel of voluntarily driving turn into fashion, automobile oneself through be national life necessary articles for use.Simultaneously
Automobile increasing quantitatively, causes that the road of peak period is crowded, and traffic accident takes place frequently.Collision is the main performance of traffic accident
Form, wherein most are vehicle to vehicle crash and people-car collision.Many driver and crew injures and deaths in traffic accident, vehicle damage,
Cause great economic loss.Oneself warp of the driving safety of automobile turns into the unavoidable major issue that current social is faced.
It is reported that because of the dead number of traffic accident, oneself has hundreds of thousands every year in the whole world.Therefore, many automobile factory commercial cities are being developed at present
One's own automobile safety system, to meet the needs of people are for traffic safety, improve from inside automotive field
Market share amount.So the research for carrying out the anti-collision safety system of automobile has very important realistic meaning.
Design a cost-effective comprehensive, multi-angle vehicle anti-collision early warning system.The system utilizes laser or super
The distance of the real-time detection such as sound wave vehicle and barrier, by judging vehicle headway change and relative velocity, so as to sentence
Break and the motion state of front truck, so as to be inferred to front truck and this car belong to which theoretical model of collision-proof alarm, and select corresponding
Model calculate danger warning distance and reminding alarm distance.When actual spacing is less than or equal to alarm distance, system
Some alarm signals can be produced and carry out alerting drivers, remind driver to care should be taken to drive or should take the braking of correlation immediately
Measure, so as to effectively prevent or reduce the generation of traffic accident.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of omnidirectional vehicle anti-collision proposed
Hit early warning system and its method.
To achieve the above object, the present invention provides following technical scheme：
A kind of omnidirectional vehicle collision early warning system, including：
Collision early warning system processing platform：The collision early warning system processing platform is omnidirectional vehicle anticollision early warning
The hardcore of system, for all letters including data signal, sound and light alarm signal, ultrasonic signal and vision signal
Number handled；
Supply unit：The supply unit is only powered for omnidirectional vehicle collision early warning system, and the electricity of supply unit
Signal output interface is connected with the electric signal input interface of collision early warning system processing platform；
Laser ranging collision prevention device：At the signal output part and collision early warning system of the laser ranging collision prevention device
The signal input part connection of platform, handled by laser ranging to judge whether to early warning；
Sound and light alarm display system：The input of the sound and light alarm display system and collision early warning system processing platform
Output end be electrically connected with, the sound and light alarm display system is divided into fault diagnosis alarm, audible alarm and light warning and language
Sound is reported, and according to different security situations, carries out different alarms, and corresponding information is shown；
Camera：The output end of the camera is electrically connected with the input of collision early warning system processing platform, is adopted
With camera, installed in the afterbody of automobile, prevent reverse collision barrier and the pedestrian to pass by one's way, avoid automobile damage and
The generation of security incident；
Supersonic range finder：The signal output part of the supersonic range finder and collision early warning system processing platform
Signal input part connection, ultrasonic distance measuring radar produce needed for wave frequency signal, pass through receiving terminal receive echo-signal, complete thunder
Up to sending and receiving for signal, signal is then passed to collision early warning system processing platform and makes corresponding processing；
Remote control terminal：Remote control terminal passes through wireless communication module and collision early warning system processing platform signal
Connection, monitor whether automobile collides by Wireless remote control.
Preferably, the laser ranging collision prevention device includes laser range finder, velocity sensor, microprocessor and intelligence
Brakes, two inputs of two output ends of the laser range finder and velocity sensor with microprocessor electrically connect
Connect, the output end of the microprocessor and the input of intelligent braking system are electrically connected with.
Preferably, the sound and light alarm display system include LED display, LED audible-visual annunciators, voice broadcast module and
Fault diagnosis module.
Preferably, the supersonic range finder includes ultrasonic transmitter, ultrasonic receiver and signal amplifier.
Preferably, the remote control terminal is one kind in mobile phone or tablet personal computer.
Preferably, the collision early warning system processing platform includes FPGA processor and DSP Processor.
The present invention also provides a kind of method of omnidirectional vehicle anticollision early warning, comprises the following steps：
Camera, is arranged on automobile by S1, the centre for laser ranging collision prevention device being arranged on automobile front beam
Among afterbody；Supersonic range finder is arranged on the lower end of the left and right car door of automobile；Collision early warning system processing platform with
And sound and light alarm display system is arranged on the display screen installation site of automobile；
S2, supply unit, laser ranging collision prevention device, camera, supersonic range finder and anticollision early warning system
Processing platform of uniting is connected, and sound and light alarm display system is connected with collision early warning system processing platform；
S3, debugging collision early warning system processing platform, after initialization, carry out data acquisition, including collection automobile
Actual range, the distance of automobile two sides barrier and the video information of automobile tail barrier apart from front obstacle, vapour
The current speed of car, steering angle and acceleration, and judge automobile current state in real time using pid algorithm；
S4, the actual range D and warning distance Dw to return further according to collection, risk distance Dd, braking distance Db enter one by one
Judge after row；
S5, first, actual range D is compared with warning distance Dw, if D<Dw is invalid, then ride safety of automobile,
In the absence of risk of collision, now green light；
If S6, D<Dw is set up, and then continues to judge D<Whether Dd sets up, if invalid, running car compares danger
Danger, now amber light is bright, reminds driver to maintain safe distance traveling；
If S7, set up, then carry out judging whether to be less than braking distance Db, if D<Db is invalid, and automobile storage is touching
Danger is hit, now system can carry out sound and light alarm, i.e., when red and send alarm, remind driver's braking deceleration immediately；Such as
Fruit is set up, then system emergency brakes, and avoids that security incident occurs.
The technique effect and advantage of the present invention：A kind of omnidirectional vehicle collision early warning system provided by the invention and its side
Method, compared with conventional art, the present invention utilizes laser or ultrasonic wave and camera real-time detection vehicle and barrier
Distance, by judging vehicle headway change and relative velocity, so as to judge the motion state of front truck, so as to be inferred to front truck
Belong to which theoretical model of collision-proof alarm with this car, and select corresponding model to be reported to calculate danger warning distance and remind
Alert distance；When actual spacing is less than or equal to alarm distance, system can produce some alarm signals and carry out alerting drivers, remind
Driver care should be taken to drive or should take the brake measure of correlation immediately, so as to effectively prevent or reduce traffic accident
Generation.
Brief description of the drawings
Fig. 1 is the system principle diagram of the present invention；
Fig. 2 is the laser ranging collision prevention device theory diagram of the present invention；
Fig. 3 is the supersonic range finder theory diagram of the present invention；
Fig. 4 is the sound and light alarm display system architectures schematic diagram of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment obtained is put, belongs to the scope of protection of the invention.
The present invention provides a kind of omnidirectional vehicle collision early warning system as Figure 1-4, including：
Collision early warning system processing platform：The collision early warning system processing platform includes FPGA processor and DSP
Processor；The collision early warning system processing platform be omnidirectional vehicle collision early warning system hardcore, for including
All signals including data signal, sound and light alarm signal, ultrasonic signal and vision signal are handled；
Supply unit：The supply unit is only powered for omnidirectional vehicle collision early warning system, and the electricity of supply unit
Signal output interface is connected with the electric signal input interface of collision early warning system processing platform；
Laser ranging collision prevention device：At the signal output part and collision early warning system of the laser ranging collision prevention device
The signal input part connection of platform, handled by laser ranging to judge whether to early warning；
Sound and light alarm display system：The sound and light alarm display system includes LED display, LED audible-visual annunciators, voice
Broadcasting module and fault diagnosis module；The input of the sound and light alarm display system and collision early warning system processing platform
Output end is electrically connected with, and the sound and light alarm display system is divided into fault diagnosis alarm, audible alarm and light warning and voice
Report, according to different security situations, carry out different alarms, and corresponding information is shown；
Camera：The output end of the camera is electrically connected with the input of collision early warning system processing platform, is adopted
With camera, installed in the afterbody of automobile, prevent reverse collision barrier and the pedestrian to pass by one's way, avoid automobile damage and
The generation of security incident；
Supersonic range finder：The supersonic range finder includes ultrasonic transmitter, ultrasonic receiver and letter
Number amplifier；The signal output part of the supersonic range finder connects with the signal input part of collision early warning system processing platform
Connect, ultrasonic distance measuring radar produce needed for wave frequency signal, by receiving terminal receive echo-signal, complete radar signal transmission and
Receive, signal is then passed to collision early warning system processing platform and makes corresponding processing；
Remote control terminal：The remote control terminal is one kind in mobile phone or tablet personal computer；Remote control terminal
It is connected by wireless communication module with collision early warning system processing platform signal, whether automobile is monitored by Wireless remote control
Collide.
The laser ranging collision prevention device includes laser range finder, velocity sensor, microprocessor and intelligent brake system
System, two output ends of the laser range finder and velocity sensor are electrically connected with two inputs of microprocessor, institute
State the output end of microprocessor and the input of intelligent braking system is electrically connected with.Wherein laser range finder：Mainly to automobile
The a range of region of road ahead carries out real time distance repeatedly, by laser institute's ranging from being transferred to data processing and control system
Handled；Velocity sensor：Speed from car is measured by the rotating speed of wheel.Microprocessor：The microprocessor is by T89C52
Chip, MAX interface circuits, reset circuit, clock circuit, buzzer circuit and power circuit are made, to the data of laser radar
Relevant treatment is carried out, is determined whether according to the speed of vehicle dangerous, is given a warning in certain scope, or even control
Brakes is made a response；Intelligent braking system：When the roadblock or leading vehicle distance that data processing and control system-computed goes out are in
When in risk range, with regard to automatic start crisis Intervention measure：Including closing engine, emergency brake etc..
The surface conditions in front of detecting laser beam sent by laser range finder, the laser when there are automobile or barrier in front
With regard to reflected back towards receiver, laser range finder just measures the distance with front roadblock or front truck immediately.Obtained by laser range finder
Data will be by biography microprocessor, and the distance obtained by microprocessor analysis calculates the speed relatively with front vehicles or barrier
Degree, judges whether in risk range, is, send alarm or using stringent effort.
The present invention also provides a kind of method of omnidirectional vehicle anticollision early warning, comprises the following steps：
Camera, is arranged on automobile by S1, the centre for laser ranging collision prevention device being arranged on automobile front beam
Among afterbody；Supersonic range finder is arranged on the lower end of the left and right car door of automobile；Collision early warning system processing platform with
And sound and light alarm display system is arranged on the display screen installation site of automobile；
S2, supply unit, laser ranging collision prevention device, camera, supersonic range finder and anticollision early warning system
Processing platform of uniting is connected, and sound and light alarm display system is connected with collision early warning system processing platform；
S3, debugging collision early warning system processing platform, after initialization, carry out data acquisition, including collection automobile
Actual range, the distance of automobile two sides barrier and the video information of automobile tail barrier apart from front obstacle, vapour
The current speed of car, steering angle and acceleration, and judge automobile current state in real time using pid algorithm；
S4, the actual range D and warning distance Dw to return further according to collection, risk distance Dd, braking distance Db enter one by one
Judge after row；
S5, first, actual range D is compared with warning distance Dw, if D<Dw is invalid, then ride safety of automobile,
In the absence of risk of collision, now green light；
If S6, D<Dw is set up, and then continues to judge D<Whether Dd sets up, if invalid, running car compares danger
Danger, now amber light is bright, reminds driver to maintain safe distance traveling；
If S7, set up, then carry out judging whether to be less than braking distance Db, if D<Db is invalid, and automobile storage is touching
Danger is hit, now system can carry out sound and light alarm, i.e., when red and send alarm, remind driver's braking deceleration immediately；Such as
Fruit is set up, then system emergency brakes, and avoids that security incident occurs.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (7)
- A kind of 1. omnidirectional vehicle collision early warning system, it is characterised in that including：Collision early warning system processing platform：The collision early warning system processing platform is omnidirectional vehicle collision early warning system Hardcore, enter for all signals including data signal, sound and light alarm signal, ultrasonic signal and vision signal Row processing；Supply unit：The supply unit is only powered for omnidirectional vehicle collision early warning system, and the electric signal of supply unit Output interface is connected with the electric signal input interface of collision early warning system processing platform；Laser ranging collision prevention device：The signal output part of the laser ranging collision prevention device and collision early warning system processing are flat The signal input part connection of platform, handled by laser ranging to judge whether to early warning；Sound and light alarm display system：The input of the sound and light alarm display system is defeated with collision early warning system processing platform Go out end to be electrically connected with, the sound and light alarm display system is divided into fault diagnosis alarm, audible alarm and light warning and voice is broadcast Report, according to different security situations, carries out different alarms, and corresponding information is shown；Camera：The output end of the camera and the input of collision early warning system processing platform are electrically connected with, using taking the photograph As head, installed in the afterbody of automobile, reverse collision barrier and the pedestrian to pass by one's way are prevented, avoids damage and the safety of automobile The generation of accident；Supersonic range finder：The signal output part of the supersonic range finder and the letter of collision early warning system processing platform The connection of number input, ultrasonic distance measuring radar produce needed for wave frequency signal, pass through receiving terminal and receive echo-signal, complete radar letter Number send and receive, signal, which is then passed to collision early warning system processing platform, makes corresponding processing；Remote control terminal：Remote control terminal is connected by wireless communication module and collision early warning system processing platform signal Connect, monitor whether automobile collides by Wireless remote control.
- A kind of 2. omnidirectional vehicle collision early warning system according to claim 1, it is characterised in that：The laser ranging Collision prevention device includes laser range finder, velocity sensor, microprocessor and intelligent braking system, the laser range finder and speed Spend two inputs of two output ends of sensor with microprocessor to be electrically connected with, the output end and intelligence of the microprocessor The input of energy brakes is electrically connected with.
- A kind of 3. omnidirectional vehicle collision early warning system according to claim 1, it is characterised in that：The sound and light alarm Display system includes LED display, LED audible-visual annunciators, voice broadcast module and fault diagnosis module.
- A kind of 4. omnidirectional vehicle collision early warning system according to claim 1, it is characterised in that：The ultrasound Include ultrasonic transmitter, ultrasonic receiver and signal amplifier away from device.
- A kind of 5. omnidirectional vehicle collision early warning system according to claim 1, it is characterised in that：The remote control Terminal is one kind in mobile phone or tablet personal computer.
- A kind of 6. omnidirectional vehicle collision early warning system according to claim 1, it is characterised in that：The anticollision is pre- Alert system processing platform includes FPGA processor and DSP Processor.
- A kind of 7. method of the omnidirectional vehicle anticollision early warning described in claim 1, it is characterised in that：Comprise the following steps：S1, laser ranging collision prevention device be arranged on automobile front beam centre, camera be arranged on automobile afterbody It is middle；Supersonic range finder is arranged on the lower end of the left and right car door of automobile；Collision early warning system processing platform and sound Light alarm display system is arranged on the display screen installation site of automobile；S2, at supply unit, laser ranging collision prevention device, camera, supersonic range finder and collision early warning system Platform is connected, and sound and light alarm display system is connected with collision early warning system processing platform；S3, debugging collision early warning system processing platform, after initialization, carry out data acquisition, including collection automobile distance Actual range, the distance of automobile two sides barrier and the video information of automobile tail barrier of front obstacle, automobile are worked as Preceding speed, steering angle and acceleration, and judge automobile current state in real time using pid algorithm；S4, the actual range D and warning distance Dw to return further according to collection, risk distance Dd, braking distance Db are compared one by one After judge；S5, first, actual range D is compared with warning distance Dw, if D<Dw is invalid, then ride safety of automobile, does not deposit In risk of collision, now green light；If S6, D<Dw is set up, and then continues to judge D<Whether Dd sets up, if invalid, running car than relatively hazardous, this When amber light it is bright, remind driver to maintain safe distance traveling；If S7, set up, then carry out judging whether to be less than braking distance Db, if D<Db is invalid, and automobile storage is endangered in collision Danger, now system can carry out sound and light alarm, i.e., when red and send alarm, remind driver's braking deceleration immediately；If into Vertical, then system emergency brakes, and avoids that security incident occurs.
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