CN209591079U - A kind of device preventing the fixed danger of vehicle collision trackside - Google Patents
A kind of device preventing the fixed danger of vehicle collision trackside Download PDFInfo
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- CN209591079U CN209591079U CN201920339370.6U CN201920339370U CN209591079U CN 209591079 U CN209591079 U CN 209591079U CN 201920339370 U CN201920339370 U CN 201920339370U CN 209591079 U CN209591079 U CN 209591079U
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Abstract
The utility model relates to a kind of devices for preventing the fixed danger of vehicle collision trackside, the fixed danger of trackside is equipped with scanning laser radar, wireless telecom equipment, liquid crystal display and communication device, equipment connects car networking platform to the scanning laser radar by wireless communication, the car networking platform connects the central processing unit of vehicle by CAN bus, the brake module and the buzzer on vehicle interior instrument desk that the central processing unit is also respectively connected with vehicle；The wireless telecom equipment is also respectively connected with and sends the signal to liquid crystal display and communication device.The utility model combines the anticollision technology of vehicle with car networking, the fixed danger front vehicles theoretical braking distance of trackside is calculated, and be compared analysis with safe distance between vehicles, to obtain treatment measures, ensures driving vehicle safety.
Description
Technical field
The utility model relates to a kind of devices for preventing the fixed danger of vehicle collision trackside, belong to safe driving technology neck
Domain.
Background technique
Driver is absent minded in fatigue driving, and judgement decline, or even movement are delayed, and driver is to preceding
The judgement of Fang Lukuang is not accurate enough, cannot avoid the fixed danger of trackside in time, so as to lead to vehicle and the fixed danger of trackside
Dangerous object collides.In recent years, the problems such as traffic accident caused by vehicle collides with the fixed danger of trackside, has caused
The great attention of society and traffic department.
The control method of car collision avoidance System mainly builds control platform and is uniformly controlled, improves accuracy of instrument at present
Deng to improve the accuracy of collision avoidance.These methods achieve certain effect really, but due to lacking to vehicle and its peripheral information
Overall understanding, system still has the insufficient defect of judgment basis.
Utility model content
To solve the above problems, the purpose of this utility model is to provide one kind to prevent the fixed danger of vehicle collision trackside
Device.
The purpose of this utility model is achieved through the following technical solutions:
A kind of device preventing the fixed danger of vehicle collision trackside, the fixed danger of trackside are equipped with laser scanning thunder
It reaches, wireless telecom equipment, liquid crystal display and communication device, scanning laser radar equipment connection vehicle connection by wireless communication
Net platform, the car networking platform connect the central processing unit of vehicle by CAN bus, and the central processing unit is also respectively connected with
The brake module and the buzzer on vehicle interior instrument desk of vehicle；The wireless telecom equipment is also respectively connected with and sends out signal
It send to liquid crystal display and communication device.
Further,
The scanning laser radar is for detecting between the fixed danger front vehicles of trackside and the fixed danger of trackside
The relative velocity of distance and front vehicles；
Vehicle location signal and the speed signal transmission that the wireless communication unit is used to obtain scanning laser radar
To car networking platform, while being also used to for the data command that central processing unit is issued by car networking platform being accordingly sent to respectively
Liquid crystal display and communication device；
The car networking platform is used to send the signal received to central processing unit by CAN bus, to judge
Situation locating for front vehicles, while being also used for receiving the data command that central processing unit issues；
The central processing unit is used for the information sent according to car networking platform, judges whether vehicle is in dangerous shape
Condition, to make corresponding Anticollision Measures；
The liquid crystal display gives Driver Vision when being in unsafe condition for the fixed danger front vehicles of trackside
Warning；
The buzzer gives driver alert when being in unsafe condition for the fixed danger front vehicles of trackside；
The brake module is for controlling vehicle braking.
Further, the scanning laser radar uses LUX scanning laser radar, and the frequency of scanning laser radar is
12.5Hz。
Further, the central processing unit passes through I/O interface respectively and connect with buzzer, brake module.
The utility model has the following beneficial effects:
This utility model combines the anticollision technology of vehicle with car networking, before the fixed danger of trackside is calculated
Square vehicle theoretical braking distance, and analysis is compared with safe distance between vehicles, to obtain treatment measures, ensure driving vehicle safety
Property.
The utility model efficiently reduces the probability of vehicle collision trackside danger, is effectively protected vehicle interior occupant peace
Entirely, the high efficiency of collision avoidance system is promoted.It is driven particularly suitable for same vehicle by different drivers or same driver is not
With driving under mental and physical, it is able to achieve accurately and efficiently early warning.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram described in the utility model for preventing the fixed danger of vehicle collision trackside；
Fig. 2 is the method flow schematic diagram that the fixed danger of vehicle collision trackside is prevented in the utility model embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figure 1, a kind of device for preventing the fixed danger of vehicle collision trackside, the fixed danger of trackside, which is equipped with, to swash
Optical scanning radar, wireless telecom equipment, liquid crystal display and communication device, scanning laser radar equipment by wireless communication
Car networking platform is connected, the car networking platform connects the central processing unit of vehicle by CAN bus.The central processing unit is also
The buzzer on the brake module and vehicle interior instrument desk of vehicle is connected by I/O interface respectively；The wireless telecom equipment
It is also respectively connected with and sends the signal to liquid crystal display and communication device.
Wherein, the scanning laser radar for detect the fixed danger front vehicles of trackside and the fixed danger of trackside it
Between distance and front vehicles relative velocity.In this implementation, the scanning laser radar uses LUX scanning laser radar,
The frequency of scanning laser radar is 12.5Hz.
Vehicle location signal and the speed signal transmission that the wireless communication unit is used to obtain scanning laser radar
To car networking platform, while being also used to for the data command that central processing unit is issued by car networking platform being accordingly sent to respectively
Liquid crystal display and communication device；
The car networking platform is for realizing the communication between wireless telecom equipment and central processing unit, the letter that will be received
Number central processing unit is sent to by CAN bus, to judge situation locating for front vehicles, while being also used for receiving central processing
The data command that device issues；
The central processing unit is used for the information sent according to car networking platform, judges whether vehicle is in dangerous shape
Condition, to make corresponding Anticollision Measures or rescue measure；
The liquid crystal display gives Driver Vision when being in unsafe condition for the fixed danger front vehicles of trackside
Warning；
The buzzer gives driver alert when being in unsafe condition for the fixed danger front vehicles of trackside；It is described
CY-12055 can be used in the model of buzzer.
The brake module is for controlling vehicle braking.
As shown in Fig. 2, a kind of method for preventing the fixed danger of vehicle collision trackside, comprising the following steps:
S1: scanning laser radar on the fixed danger of trackside in real time to the location information of front vehicles and velocity information into
Row detection, when scanning laser radar detect front there are when driving vehicle, judging whether to lock front vehicle,
Locked front vehicle is target vehicle；
Specifically, judging whether to lock front vehicle by following three conditions:
1) the front vehicle is detected scanning laser radar continuous ten times；
2) in the period for detecting the front vehicle for scanning laser radar continuous ten times, the front vehicle with
The variation range of relative angle between the fixed danger of trackside is in ± 5 °；
3) in the period for detecting the front vehicle for scanning laser radar continuous ten times, the front vehicle with
The variation range of relative velocity between the fixed danger of trackside is within 5m/s；
When meeting three above condition simultaneously, the scanning laser radar locks front vehicle.
S2: scanning laser radar sends out the location information of the target vehicle detected and velocity information through wireless telecom equipment
It send to car networking platform, the location information of target vehicle and velocity information are sent to by the car networking platform by CAN bus
Central processing unit；
S3: central processing unit handles the location information and velocity information of target vehicle, calculates the system of target vehicle
Dynamic distance, and be compared with practical spacing, judge situation locating for target vehicle；Central processing unit is sent out according to the judging result
Corresponding data command out, and send corresponding executive device to, to improve the safety of driving vehicle.
Further, by braking distance s and practical spacing s1It is compared, the practical spacing s1As target vehicle with
The distance between fixed danger of trackside, judges situation locating for target vehicle, central processing unit is issued according to the judging result
Corresponding data command is as follows:
If s1-s≥M1, then central processing unit does not control current vehicle driving status；
If M2≤s1- s < M1, then central processing unit sends instruction by CAN bus and passes sequentially through car networking platform and wireless
Communication equipment reaches the liquid crystal display being fixed on trackside danger, and driver is reminded to slow down；
If 0≤s1- s < M2, then central processing unit transmission enables buzzer warning, and prompting driver is slowed down, buzzer report
After alert 2s, central processing unit sends instructions to brake module braking；
If vehicle collides with the fixed danger of trackside, i.e. s1=0, then central processing unit sends instructions to communication device
It is communicated with first-aid centre to reduce injures and deaths；
Wherein, M1For level-one alarm threshold value, M2For secondary alarm threshold value.
Wherein, the calculation method of braking distance s is as follows:
If 1) the real time acceleration a of target vehicleb>0m/s2, wherein abThe speed difference in 10ms is taken to calculate:
The calculation formula of the braking distance s of target vehicle are as follows:
In formula, μa0For the present speed of target vehicle, τ '2It is reaction time of braking device, τ2It " is that brake braking force increases
τ ' is arranged in time2=0.1s, τ2"=0.5s；
If 2) ab<0m/s2,
The calculation formula of the braking distance of target vehicle are as follows:
The device provided by the utility model for preventing the fixed danger of vehicle collision trackside as a kind of security system, it
Speed and the position that the fixed danger front vehicles of trackside can accurately be measured, if system judges that driving vehicle is in danger
Situation can issue alarm signal to driver in time, can in emergency circumstances drive the brake module of vehicle, accident be avoided to send out
It is raw.If accident generation is inevitable, first-aid centre is sent a signal to, is rescued in time, injures and deaths are reduced.To guarantee driving peace
Entirely, the distance between driving vehicle and the fixed danger of trackside have to be larger than level-one alarm threshold value.When driving vehicle and trackside are solid
When determining the distance between danger less than or equal to level-one alarm threshold value, system should judge that potentially collision is possible, concurrently
It warns out.When the distance between driving vehicle and the fixed danger of trackside are less than or equal to secondary alarm threshold value, system is answered
It issues hydropac and starts brake module.It among these, can be to the distance between vehicle and the fixed danger of trackside trend
It is particularly significant for traffic safety to carry out accurate judgement.
In conclusion the utility model efficiently reduces driving mainly by the study to driver's Distance Judgment characteristic
Erroneous judgement of the member to automobile brake distance, promotes the precise and high efficiency of collision early warning system.It is different particularly suitable for same vehicle
Driver drives or same driver drives under different mental and physicals, is able to achieve accurately and efficiently early warning.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of device for preventing the fixed danger of vehicle collision trackside, which is characterized in that the fixed danger of trackside, which is equipped with, to swash
Optical scanning radar, wireless telecom equipment, liquid crystal display and communication device, scanning laser radar equipment by wireless communication
Car networking platform is connected, the car networking platform connects the central processing unit of vehicle by CAN bus, and the central processing unit is also
The brake module and the buzzer on vehicle interior instrument desk for being separately connected vehicle；The wireless telecom equipment is also respectively connected with simultaneously
Send the signal to liquid crystal display and communication device.
2. the device according to claim 1 for preventing the fixed danger of vehicle collision trackside, which is characterized in that
The scanning laser radar is for detecting the distance between the fixed danger front vehicles of trackside and the fixed danger of trackside
And the relative velocity of front vehicles；
The wireless communication unit is used to vehicle location signal and speed signal that scanning laser radar obtains being transmitted to vehicle
Networked platforms, while being also used to central processing unit being accordingly sent to liquid crystal respectively by the data command that car networking platform issues
Display screen and communication device；
The car networking platform is used to send the signal received to central processing unit by CAN bus, to judge front
Situation locating for vehicle, while being also used for receiving the data command that central processing unit issues；
The central processing unit is used for the information sent according to car networking platform, judges whether vehicle is in unsafe condition,
To make corresponding Anticollision Measures；
The liquid crystal display gives Driver Vision warning when being in unsafe condition for the fixed danger front vehicles of trackside；
The buzzer gives driver alert when being in unsafe condition for the fixed danger front vehicles of trackside；
The brake module is for controlling vehicle braking.
3. the device according to claim 1 for preventing the fixed danger of vehicle collision trackside, which is characterized in that the laser
Scanning radar uses LUX scanning laser radar, and the frequency of scanning laser radar is 12.5Hz.
4. the device according to claim 1 for preventing the fixed danger of vehicle collision trackside, which is characterized in that the center
Processor passes through I/O interface respectively and connect with buzzer, brake module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339370.6U CN209591079U (en) | 2019-03-18 | 2019-03-18 | A kind of device preventing the fixed danger of vehicle collision trackside |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920339370.6U CN209591079U (en) | 2019-03-18 | 2019-03-18 | A kind of device preventing the fixed danger of vehicle collision trackside |
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| CN209591079U true CN209591079U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830105A (en) * | 2019-03-18 | 2019-05-31 | 中国安全生产科学研究院 | A kind of device and method preventing the fixed danger of vehicle collision trackside |
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2019
- 2019-03-18 CN CN201920339370.6U patent/CN209591079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830105A (en) * | 2019-03-18 | 2019-05-31 | 中国安全生产科学研究院 | A kind of device and method preventing the fixed danger of vehicle collision trackside |
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