CN205523944U - Controlling means that backs a car is forbidden on high -speed road surface - Google Patents
Controlling means that backs a car is forbidden on high -speed road surface Download PDFInfo
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- CN205523944U CN205523944U CN201620251834.4U CN201620251834U CN205523944U CN 205523944 U CN205523944 U CN 205523944U CN 201620251834 U CN201620251834 U CN 201620251834U CN 205523944 U CN205523944 U CN 205523944U
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Abstract
The utility model discloses a controlling means that backs a car is forbidden on high -speed road surface, the device include speed in reverse switch, control module and portable radar speed -measuring module, portable radar speed -measuring module includes radar emission unit and processing unit, speed in reverse switching system is on the derailleur control rod. Radar emission unit includes that antenna, first detector, local oscillator put the wave filter in, the first detector is put the wave filter with antenna, local oscillator in, respectively and is connected, processing unit includes AD converter, DSP processing unit, output unit, defeated entry control unit and RS232 communication interface, defeated entry control unit, AD converter are connected with DSP processing unit respectively, DSP processing unit and output unit are connected, and output unit and RS232 communication interface are connected. The device still includes the car light control unit who is connected with control module, car light control unit is connected with stop lamp, left side indicator and right side indicator respectively.
Description
Technical field
This patent belongs to automobile automation field, is specifically related to one in the speed such as highway or belt relatively
High road surface, forbids the control device of reversing.
Background technology
Along with the development of auto manufacturing, car has become as the daily necessities of average family, car popularize to
The life of people brings great convenience, accelerates out line efficiency, but, do not observe due to part driver and hand over
Drift then, tends to cause major traffic accidents, and wherein highway is exactly an easily section of major accident.
The gateway of Expressway Design is less and speed very fast, if driver misses rolls outlet at a high speed away from, needs
Travel very distance just can roll away to next crossing, the most again go up and open back along opposite side track at a high speed
Roll away from a high speed, arrive at, but few part driver is because of when being unwilling travel distance more or catch up with
Between, just risk violates the traffic regulations, and moves backward on a highway, during owing to travelling on a highway, drives
Member is easy to fatigue, so it is possible to there is shock accident because of finding later in vehicle below, and highway
If it occur that clash into, the most serious vehicle accident, many cars may be occurred to bump against because having little time brake,
Will result in the loss of huge property and life, bring huge grief to numerous families.In order to avoid this kind of thing
Therefore generation, scientific and technical personnel conduct extensive research, and achieve certain scientific achievement.
" a kind of device detecting reversing behavior and detection method thereof " (application number: 201310084333.2) exists
Ground induction coil is buried at highway fork crossing underground, on the basis of the moment T1 of first car process, if warp after with
The vehicle moment crossed be Ti (i=2,3 ...), if Ti with T1 differs 4-6 minute, then by first car with
After the Ti moment between license board information compare, and then judge whether to there occurs " reversing " behavior, as
There is " reversing " behavior in fruit, then this car signal is issued traffic control department, punish.This patent is to driver
Play deterrent effect, constrain driver's expressway surface " to move backward " behavior, but there is following drawback: first
By time restriction, if backing time is long or too short, the most not in 4-6 minute scope etc, will be unable to monitoring
To reversing phenomenon；Second is limited by place, and this device can fill monitoring device at high speed crossing, but impossible
Install monitoring device on whole road surface, driver can move backward in high speed bifurcation mouth, it is also possible to diverges in non-high-speed
Mouth reversing is bigger, because near high speed bifurcation mouth, driver is the most careful in the harm of non-high-speed bifurcation mouth reversing
Careful and road is wider, sail out of the speed of vehicle on expressway surface track and be relatively low, but in the middle of expressway
Section (non-high-speed bifurcation mouth), track is narrower and speed is higher, and Driver Vision is the most tired, the most more holds
Easily getting into an accident, harm is bigger, but this patent but cannot be monitored；3rd is missed by artificial limitation, driver
At a high speed during fork crossing, few part driver can use the mode blocking car plate or monitoring camera to escape prison
Survey, " move backward " by force, bury the seed of trouble to great traffic accident." a kind of detect high speed fork in the road reversing automobile behavior
Device and detection method thereof " (application number: 2013100843332.8) and " a kind of device detecting reversing behavior
And detection method " (application number: 201310084333.2) controls thinking and method is essentially the same.
In addition to two above patent, not yet find that expressway surface forbids backing device, and two above patent control
Thinking processed is essentially the same, while constraint expressway surface " is moveed backward ", there is more problem, makes with actual
With there being bigger gap.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is to propose a kind of high speed
Astern controls is forbidden on road surface, by increasing mobile radar speed measuring module, solves expressway surface reversing existing
As, have that design is simple, implement convenience, dependable performance, the feature such as applied widely.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of expressway surface is forbidden
Astern controls, this device includes reverse gear switch, control module and mobile radar speed measuring module, described shifting
Dynamic formula radar velocity measurement module includes that radar emission unit and processing unit, described reverse gear switch are arranged on variator behaviour
On vertical pole.Described radar emission unit include antenna, frequency mixer, local oscillator, in put wave filter；Described frequency mixer
Respectively with antenna, local oscillator, in put wave filter and be connected；Described processing unit includes A/D converter, DSP process
Unit, output unit, input control unit and RS232 communication interface, described input control unit, A/D turn
Change device is connected with DSP processing unit respectively, described DSP processing unit is connected with output unit, output unit and
RS232 communication interface connects.This device also includes the car light control unit being connected with control module, described car light
Control unit is connected with Brake lamp, left side steering indicating light and right hand steering lamp respectively.This device also includes and controls mould
The control unit of engine that block connects, described control unit of engine is connected with cylinder fuel injection device coil.This device
Also including the speech control unit being connected with control module, described speech control unit is for the state according to vehicle
Send different alarm signals.
This utility model provides the benefit that: 1. this control device is applicable to the speed limit such as ring road, highway relatively
High system-wide section, forbids driver's reversing in violation of rules and regulations on the road surface that speed is higher, and range is wide.2. when driving
Member is when expressway surface in violation of rules and regulations reversing (no matter being bifurcation mouth or other section), and with rear relative to speed
During more than threshold value, Brake lamp and danger alarm lamp, all by flicker, remind other vehicle to note dodging；Voice module
Give a warning to driver, supervise driver to correct violation operation immediately；Engine fuel injector will stop oil spout,
Cut off power.3. this patent is it is also contemplated that driver uses the behavior of mode reversings in violation of rules and regulations such as blocking, if blocked
Radar velocity measurement device, then be considered as relative speed and exceed threshold value.4. this patent do not have in the wings vehicle high-speed close to time
(outside 200 meters), it is possible to implement reversing behavior, design more hommization.5. this patent has mandatory, as
Really driver operates by force, will forbid starting electromotor with the form of fault.6. this patent is in former car control circuit
On the basis of, do simple improvement, have that design is simple, implement convenience, dependable performance, the spy such as applied widely
Point.
Accompanying drawing explanation
Below the content expressed by this specification accompanying drawing and the labelling in figure are briefly described:
Fig. 1 is that expressway surface forbids that reversing controls thinking.
Fig. 2 is that expressway surface forbids control circuit figure of moveing backward.
Fig. 3 is that mobile radar speed measuring device controls schematic diagram.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, detailed description of the invention of the present utility model is the most involved
The shape of each component, structure, mutual alignment between each several part and annexation, the effect of each several part and work
Make principle, manufacturing process and operate with method etc., being described in further detail, to help art technology
Personnel have more complete, accurate and deep understanding to inventive concept of the present utility model, technical scheme.
This patent forbids the purpose of reversing to reach expressway surface, on the basis of original automobile controls parts,
Carried out part-structure improvement, and add mobile radar speed measuring device, single-chip microcomputer, the travel switch that reverses gear,
Voice module, speaker etc..
One, setting up the switch that reverses gear on speed-changing lever, when variator is in and reverses gear position, reverse gear stroke
Switch Guan Bi；When variator is not when reversing gear position, and the travel switch that reverses gear is opened.
Two, installing mobile radar speed measuring device at the rear portion of automobile, radar velocity measurement device is mainly by radar emission
Unit and processing unit two large divisions form, radar emission unit by antenna, frequency mixer, local oscillator, in put filtering
Device part forms；Processing unit is mainly controlled by A/D converter, DSP processing unit, output unit, input
Unit, RS232 communication interface part are graded composition.
The control thinking of mobile radar speed measuring device is as it is shown on figure 3, its work process is as follows:
1. in emitting radar waves unit, complete two processes, it may be assumed that (1) radar antenna launches a certain frequency
Continuous wave, arrive after target vehicle and reflect, by radar transmitting wave with the common Frequency mixing processing of echo obtained,
Obtain intermediate-freuqncy signal, extract difference frequency signal.(2) intermediate frequency amplifier is by difference frequency signal filter and amplification so that it is meet
The input range requirement of A/D converter, is re-fed into processing unit.
2., in data processing unit, it is converted that data signal processor receives the serial data exported by A/D
Parallel data, the estimation then carrying out Doppler frequency shift processes, then by DSP (Digital Signal Process)
Judge signal whether distortion by calculating, if distortion, then changed amplifier gain by logic controller；If no
There is distortion, then DSP proceeds the process of further data, calculates the translational speed signal of object, aobvious
Show result, and carry out data exchange by RS232 and single-chip microcomputer.
Three, when automotive transmission is in and reverses gear position, and reach with the relative speed at rear 70km/h and
Time above, four road signals sent by single-chip microcomputer simultaneously, and first via signal gives control unit of engine, electromotor control
After unit processed receives signal, stopping to all cylinder fuel injection device coil power supplies, oil spout behavior stops, engine air
Cylinder will not have fuel oil supply；
Second tunnel signal period property deliver to left and right turn signal, steering indicating light flicker (can also utilize former car relay
Control circuit, then the signal that the second tunnel is sent is by constant, and steering indicating light also will flash)；
3rd tunnel signal period property deliver to Brake lamp road, Brake lamp flashes, the steering indicating light of flicker and the system of flicker
Front vehicle reminded jointly by dynamic lamp: front vehicles occurs abnormal, notes dodging；
4th road signal delivers to voice module, and this road signal is divided into three phases, and in 0～2 second, voice module leads to
Crossing speaker and send " front vehicle high speed is close, please don't move backward ", in 3～4 seconds, voice module passes through speaker
Sending " electromotor oil-break will be unable to start ", within more than 5 seconds, voice module sends " electromotor by speaker
Cannot start, please keep in repair ", control unit of engine stops to each oil supply cylinder, only arrives repair shop and eliminates fault
After Ma, just can reset electromotor.
If four drivers use to carry out by force " reversing " mode that radar velocity measurement device blocks, then radar is surveyed
The current relative speed of acquiescence more than 70km/h, is controlled device and sends four road signals equally by speed variator, and first
Road signal gives control unit of engine, after control unit of engine receives signal, stops to all cylinder fuel injections
Device coil power supply；Second tunnel signal period property deliver to left and right turn signal, steering indicating light flashes；3rd road signal week
Phase property deliver to Brake lamp road, Brake lamp flashes；4th road signal delivers to voice module.
First the control thinking of this device is understood, as it is shown in figure 1, when automobile is in and reverses gear position, if with
Rear relative to speed more than 70km/h (speed limit 60km/h in general city, ring road speed limit 80km/h, high
Speed road speed limit 100km/h～120km/h, so the threshold value of the relative speed of this device is set as 70km/h,
Can also be other value), single-chip microcomputer sends four road signals, and first via signal gives engine electric-controlled unit, sends out
Motivation ECU stops powering to fuel injector；Second tunnel signal period property gives steering indicating light；3rd road signal week
Phase property gives Brake lamp；4th road signal gives voice module.
Before analyzing the control circuit of this patent, analyze the work process of mobile radar speed measuring device
(rear 150～300 meters of scopes can be detected), as shown in Figure 3.How general mobile radar speed measuring device use
Le frequency displacement is tested the speed, use DSP (Digital Signal Process) as the primary processor of radar velocity measurement device,
Meet data Quick Acquisition, process, filtered passerby, bicycle, taller and bigger road sign, non-measured mesh
Target moves the interference of vehicle, measures the speed of back car accurately, and specific practice is mounted in vehicle rear
Radar velocity measurement device send two groups of ripples, wherein, the transmitting target of first group of radar wave is relative ground static
Object of reference, for measuring the translational speed installing radar velocity measurement device, that is to say the speed of this car；Second group of thunder
The transmitting target reaching ripple is mobile object, on the basis of the difference obtaining two translational speeds, then with measuring static mesh
The transmitted wave of timestamp does plus and minus calculation, so that it may know the relative moving speed of mobile object.
f1For reflection wave frequency (Hz), f0For emitted frequency (Hz), vwFor target object relative moving speed (m/s),
C is electromagnetic wave propagation speed (3 × 105 (km/s))
Radar velocity measurement device is mainly made up of with processing unit two large divisions radar emission unit, radar emission unit
By antenna, frequency mixer, local oscillator, in put filter segment and form；Processing unit mainly by A/D converter,
DSP processing unit, output unit, input control unit, RS232 communication interface part are graded composition.
In conjunction with Fig. 2, describe concrete control process:
When automobile is in and reverses gear position, the travel switch K1 that reverses gear closes, and by this signal by c1 port and
C2 port is delivered in single-chip microcomputer, mobile radar speed measuring device by b1 port and b2 port by Ben Che with after
The relative speed of car is delivered in single-chip microcomputer, and single-chip microcomputer is received K1 Guan Bi simultaneously and is more than or equal to relative speed
During 70km/h, this control device is by action, and single-chip microcomputer will send four road signals simultaneously: first via signal is control
Engine fuel injector break-make situation processed, in 0～2 second time, single-chip microcomputer f port does not send signal；3～4 seconds
In time, single-chip microcomputer f port sends signal to engine electric-controlled unit, and engine electric-controlled unit receives this signal
Time, stopping powering to each cylinder injector, fuel injector will stop oil spout, and signal transduction process is: single-chip microcomputer f
Port → engine electric-controlled unit → control each cylinder injector coil blackout.After 5 seconds and above time, electromotor
ECU stores DTC and locked powers to fuel injector, even if resetting starter, electromotor controls single
Unit also cannot power to fuel injector, after needing to eliminate DTC to maintenance factory, just can oil spout again, this kind control
Mode processed prevents driver from moveing backward by force, has positive action.
Second road signal is sent by single-chip microcomputer g port and h port, and this road signal is periodic break-make, it is ensured that
Steering indicating light flicker (can also be constant send signal, but need to utilize the steering indicating light relay circuit of former car),
Signal transduction process is: single-chip microcomputer g port → right hand steering lamp M2 → bonding；Single-chip microcomputer h port → left side
Steering indicating light M1 → bonding；Bilateral steering indicating light (that is to say danger alarm lamp) flashes, and reminds other vehicle to note
Dodge.
3rd road signal is sent by single-chip microcomputer m port, and this signal is also periodic break-make, allows Brake lamp flash
(the experiment proved that, Brake lamp flicker has more prompting effect than Brake lamp Chang Liang), can effectively remind rear
Vehicle, front vehicles generation abnormal conditions, it is noted that dodge, signal transduction process is: single-chip microcomputer m port →
Brake lamp M → bonding.
4th road signal is sent by single-chip microcomputer e port, and signal transduction process is: single-chip microcomputer e port → voice mould
Block → speaker, in 0～2 second, voice module sends by speaker that " front vehicle high speed is close, please don't
Reversing ", in 3～4 seconds, voice module sends " electromotor oil-break, will be unable to startup " by speaker, 5 seconds with
Upper voice module is sent " electromotor cannot start, and please keep in repair " by speaker, and control unit of engine stores
DTC, will no longer give each oil supply cylinder, only arrive after repair shop eliminates DTC, and fuel injector just can normal work
Make, just can reset electromotor.
The relative velocity threshold value of this patent, cut-out injection time, the locked time etc. of electromotor solenoid fuel injection valve,
Can be adjusted as the case may be.
Above in conjunction with accompanying drawing, this utility model is exemplarily described, it is clear that this utility model implements also
Do not limited by aforesaid way, as long as it is various with what technical scheme was carried out to have employed method of the present utility model design
The improvement of unsubstantiality, or the most improved design of the present utility model and technical scheme are directly applied to other
Close, all within protection domain of the present utility model.Protection domain of the present utility model should be with claim
The protection domain that book is limited is as the criterion.
Claims (6)
1. an expressway surface forbids astern controls, it is characterized in that, this device includes that reverse gear switch, control module and mobile radar speed measuring module, described mobile radar speed measuring module include that radar emission unit and processing unit, described reverse gear switch are arranged on speed-changing lever.
Expressway surface the most according to claim 1 forbids astern controls, it is characterised in that described radar emission unit include antenna, frequency mixer, local oscillator, in put wave filter；Described frequency mixer respectively with antenna, local oscillator, in put wave filter and be connected.
Expressway surface the most according to claim 1 forbids astern controls, it is characterized in that, described processing unit includes A/D converter, DSP processing unit, output unit, input control unit and RS232 communication interface, described input control unit, A/D converter are connected with DSP processing unit respectively, described DSP processing unit is connected with output unit, and output unit is connected with RS232 communication interface.
Expressway surface the most according to claim 1 forbids astern controls, it is characterised in that this device also includes the car light control unit being connected with control module, and described car light control unit is connected with Brake lamp, left side steering indicating light and right hand steering lamp respectively.
Expressway surface the most according to claim 1 forbids astern controls, it is characterised in that this device also includes that the control unit of engine being connected with control module, described control unit of engine are connected with cylinder fuel injection device coil.
Expressway surface the most according to claim 1 forbids astern controls, it is characterised in that this device also includes the speech control unit being connected with control module, and described speech control unit is for sending different alarm signals according to the state of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620251834.4U CN205523944U (en) | 2016-03-24 | 2016-03-24 | Controlling means that backs a car is forbidden on high -speed road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620251834.4U CN205523944U (en) | 2016-03-24 | 2016-03-24 | Controlling means that backs a car is forbidden on high -speed road surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205523944U true CN205523944U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620251834.4U Expired - Fee Related CN205523944U (en) | 2016-03-24 | 2016-03-24 | Controlling means that backs a car is forbidden on high -speed road surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN205523944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644436A (en) * | 2016-03-24 | 2016-06-08 | 安徽机电职业技术学院 | Control device and control method for forbidding car backing on high way |
| CN112664648A (en) * | 2020-12-24 | 2021-04-16 | 长安大学 | Method for preventing illegal backing at highway intersection and auxiliary safety system |
-
2016
- 2016-03-24 CN CN201620251834.4U patent/CN205523944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105644436A (en) * | 2016-03-24 | 2016-06-08 | 安徽机电职业技术学院 | Control device and control method for forbidding car backing on high way |
| CN105644436B (en) * | 2016-03-24 | 2018-12-04 | 安徽机电职业技术学院 | A kind of expressway surface forbids astern controls and its control method |
| CN112664648A (en) * | 2020-12-24 | 2021-04-16 | 长安大学 | Method for preventing illegal backing at highway intersection and auxiliary safety system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170324 |