CN104442577A - Vehicle cut-across rearview control system - Google Patents
Vehicle cut-across rearview control system Download PDFInfo
- Publication number
- CN104442577A CN104442577A CN201410719736.4A CN201410719736A CN104442577A CN 104442577 A CN104442577 A CN 104442577A CN 201410719736 A CN201410719736 A CN 201410719736A CN 104442577 A CN104442577 A CN 104442577A
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- angular transducer
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- 230000001429 stepping Effects 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000004642 transportation engineering Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001513 Elbow Anatomy 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000002238 attenuated Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010192 crystallographic characterization Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000153 supplemental Effects 0.000 description 1
Classifications
-
- 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
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
- B60R1/07—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
-
- 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
- B60R2300/8066—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 monitoring rearward traffic
Abstract
The invention discloses a vehicle cut-across rearview control system. The vehicle cut-across rearview control system comprises an angle transducer mounted on a bearing of a vehicle steering wheel, wherein the angle transducer is used for detecting the steering angle of the steering wheel; the output end of the angle transducer is connected with the input end of an amplifying circuit; the output end of the amplifying circuit is connected with the input end of an A/D (Analog/Digital) converter; the A/D converter is connected with a controller; the controller is connected with the input end of a power amplifying circuit; the output end of the power amplifying circuit is connected with a stepping motor; when the vehicle cuts across, the stepping motor drives a rearview mirror of the vehicle to be rotated outwards, so as to enlarge the vision of the driver. The vehicle cut-across rearview control system disclosed by the invention can directly display whether another vehicle cuts across or not, the relative distance and the velocity, so that the cut-across vehicle cannot be ignored by the driver, and the driving safety of the means of transportation can be greatly improved.
Description
Technical field
The present invention relates to a kind of vehicle merge system, particularly relate to a kind of vehicle merge backsight control system.
Background technology
When driving because original back mirror of vehicle both sides is fixing, and road time cannot see equidirectional driving vehicle on other tracks, and road time be easy to the traffic accident that collides, particularly dangerous especially when bend Shang Bing road.Existing and road ancillary system just has suggesting effect, cannot judge with other and the Distance geometry speed of road car, not intuitively, and cue is not easily looked by driver.
Summary of the invention
The present invention is intended at least solve the technical matters existed in prior art, especially innovatively proposes a kind of vehicle merge backsight control system.
In order to realize above-mentioned purpose of the present invention, the invention provides a kind of vehicle merge backsight control system, it comprises the angular transducer be arranged on steering wheel for vehicle bearing, the angle that described angular transducer turns over for detecting described bearing circle, the mouth of described angular transducer is connected with the signal input part of controller, the mouth of described controller is connected with the input end of driving circuit, the mouth of described driving circuit is connected with the input end of stepping motor, the signal that described controller exports according to angular transducer, control step driven by motor back mirror rotates;
When vehicle merge, bearing circle rotates, and angular transducer leaves just position, and the signal that described controller exports according to angular transducer is outwards rotated by control step driven by motor back mirror, expands the driver visual field;
When angular transducer resets to first position, described controller is inwardly rotated by control step driven by motor back mirror according to the signal that angular transducer exports and synchronously gets back to initial position.
The angle that the steering wheel for vehicle that angular transducer gathers rotates, by angular transducer as electronic signals input control device, controller carrys out the rotation of control step motor by the voltage signal change that angular transducer exports.
In the preferred embodiment of the present invention, described driving circuit comprises the first aerotron, and the collecting electrode of described first aerotron is connected with one end of the 15 resistance, and the other end of described 15 resistance is connected with power supply; The emitter of described first aerotron is connected respectively with one end of one end of the 7th resistance, one end of the first electric capacity and the 9th resistance respectively, the other end of described 7th resistance is connected with one end of the 8th resistance and the other end of described first electric capacity respectively, the other end of described 9th resistance is connected with one end of the first diode, and the other end of described first diode and the other end of described 8th resistance are connected with stepping motor respectively.
Enough running powers are provided to stepping motor.Wherein the 8th resistance plays metering function, also serves and improves loop time constant; The counter electromotive force that first diode makes stepping motor winding produce is attenuated by the first diode, thus protects the firstth aerotron and be not damaged; First electric capacity improves the current impulse forward position injecting stepping motor winding, improves the high-frequency performance of stepping motor; 7th resistance reduces the discharge time constant in loop, makes the rear along steepening of current impulse in winding, diminishes, play the effect improving high-frequency work performance between electric current decline elbow.
In the preferred embodiment of the present invention, also comprise amplifying circuit, the input end of described amplifying circuit is connected with the mouth of described angular transducer, the mouth of described amplifier is connected with the signal input part of described controller, described amplifying circuit comprises amplifier, the inverting input of described amplifier is connected with one end of the 4th resistance and one end of the 5th resistance respectively, and the other end of described 5th resistance is connected with the mouth of described amplifier; The normal phase input end of described amplifier is connected with one end of the second resistance and one end of the 3rd resistance respectively, the described other end of the second resistance is connected with the sliding end of slide-changing resistor, one end of described slide-changing resistor is connected with one end of power supply, the other end of described slide-changing resistor and the other end of described 3rd resistance respectively with power supply be connected.Circuit is simple, is easy to realize.Slide-changing resistor is conducive to the voltage proofreaded when angular transducer does not rotate and exports
Be more preferably in embodiment in one of the present invention, described second resistance is identical with the resistance of described 4th resistance, and described 3rd resistance is identical with the resistance of described 5th resistance.
In the preferred embodiment of the present invention, also comprise A/D conversion, the signal input part of described A/D conversion is connected with the mouth of described amplifying circuit, the input end of clock of described A/D conversion is connected with the clock signal input terminal of controller, the data output end of described A/D conversion is connected with the signal input part of described controller, and the data input pin of described A/D conversion is connected with the data output end of controller.
In the preferred embodiment of the present invention, also comprise relay, one end of the input circuit of described relay is connected with one end of switch, the other end of described switch is connected with one end of power supply, the other end of described power supply is connected with the other end of the input circuit of described relay, and the output loop of described relay is connected with the electric power loop of described controller.And road time, for open and road back-sight visual system.
In the preferred embodiment of the present invention, also comprise filter circuit, described filter circuit is connected with the mouth of described angular transducer, described filter circuit comprises the 3rd electric capacity, the 4th electric capacity and inductance, one end of described inductance is connected with one end of the 3rd electric capacity, the other end of described inductance is connected with one end of the 4th electric capacity, the other end of described 3rd electric capacity and the other end of the 4th electric capacity respectively with power supply be connected.The waveform being conducive to exporting is more level and smooth.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: the present invention can show whether You Bing road car and relative distance thereof and speed intuitively, and can not looked by operator, greatly improves the drive safety of transport facility.
Accompanying drawing explanation
Fig. 1 is circuit structure block diagram of the present invention;
Fig. 2 is schematic diagram of the present invention;
Fig. 3 is bearing circle schematic diagram in Fig. 2;
Fig. 4 is back mirror schematic diagram in Fig. 2;
Fig. 5 is back mirror schematic diagram in Fig. 2;
Fig. 6 is circuit diagram of the present invention;
Fig. 7 is vehicle merge schematic diagram;
Fig. 8 is vehicle merge schematic diagram.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The invention provides a kind of vehicle merge backsight control system, as shown in Figure 1-Figure 3, comprise the angular transducer 2 be arranged on steering wheel for vehicle 1 bearing, the angle that this angular transducer 2 turns over for detecting bearing circle 1, the mouth of angular transducer 2 is connected with the signal input part of controller, the mouth of controller is connected with the input end of driving circuit, the mouth of driving circuit is connected with the input end of stepping motor, the mouth of driving circuit is connected with the input end of stepping motor, the signal that controller exports according to angular transducer, control step driven by motor back mirror rotates.
In the present embodiment, the quantity of stepping motor can be 1 and also can be 2.
When vehicle merge, bearing circle rotates, and angular transducer leaves just position, does not take turns left-handed turning or right-hand turning, and the signal that controller all exports according to angular transducer is outwards rotated by control step driven by motor back mirror, expands the driver visual field; In the present embodiment, stepping motor adopts 4 phase 5 line systems.When angular transducer resets to first position, controller is inwardly rotated by control step driven by motor back mirror according to the signal that angular transducer exports and synchronously gets back to initial position.Should be noted that, this system is not limited to use on automobile, motor bike and battery-driven car, as long as need the vehicle of installation back mirror all can install this system.
In the preferred embodiment of the present invention, as shown in Figure 6, described driving circuit comprises the first aerotron, and the collecting electrode of described first aerotron is connected with one end of the 15 resistance, and the other end of described 15 resistance is connected with power supply; The emitter of described first aerotron is connected respectively with one end of one end of the 7th resistance, one end of the first electric capacity and the 9th resistance respectively, the other end of described 7th resistance is connected with one end of the 8th resistance and the other end of described first electric capacity respectively, the other end of described 9th resistance is connected with one end of the first diode, and the other end of described first diode and the other end of described 8th resistance are connected with stepping motor respectively.In the present embodiment, the number of driving circuit is equal with the number of phases of stepping motor, only gives an identical driving circuit, and the circuit of other phase driving circuit connects identical with this driving circuit connection mode; In the present embodiment, aerotron can be replaced by field effect transistor, is not limited to adopt enhancement mode N-type metal-oxide-semiconductor, and its connection structure: the source electrode of N-type metal-oxide-semiconductor is connected with one end of the 15 resistance, the drain electrode of N-type metal-oxide-semiconductor is connected with one end of the 7th resistance.The concrete connection structure of the metal-oxide-semiconductor of other types, adopts similar connection structure, does not repeat at this.
In the preferred embodiment of the present invention, also comprise amplifying circuit, the input end of described amplifying circuit is connected with the mouth of described angular transducer, the mouth of described amplifier is connected with the signal input part of described controller, described amplifying circuit comprises amplifier, the inverting input of described amplifier is connected with one end of the 4th resistance and one end of the 5th resistance respectively, and the other end of described 5th resistance is connected with the mouth of described amplifier; The normal phase input end of described amplifier is connected with one end of the second resistance and one end of the 3rd resistance respectively, the described other end of the second resistance is connected with the sliding end of slide-changing resistor, one end of described slide-changing resistor is connected with one end of power supply, the other end of described slide-changing resistor and the other end of described 3rd resistance respectively with power supply be connected.In the present embodiment, described second resistance is identical with the resistance of described 4th resistance, and described 3rd resistance is identical with the resistance of described 5th resistance.
In the preferred embodiment of the present invention, also comprise A/D conversion, the signal input part of described A/D conversion is connected with the mouth of described amplifying circuit, the input end of clock of described A/D conversion is connected with the clock signal input terminal of controller, the data output end of described A/D conversion is connected with the signal input part of described controller, and the data input pin of described A/D conversion is connected with the data output end of controller.In the present embodiment, the specification of A/D conversion is AD7810, is not limited to the A/D conversion of employing 10, the A/D that other precision can also be adopted higher conversion, routine AD9434 or AD1674.The annexation of A/D switch and control device and amplifying circuit is: the mouth of amplifier is connected with the analog signal in-phase input end of AD7810, AD7810 power supply ground end and analog signal inverting input respectively with power supply be connected, the power end of AD7810 and switching reference voltages input end are connected with one end of the 5th electric capacity, one end of the 6th electric capacity and power end respectively, the other end of the 5th electric capacity and the other end of the 6th electric capacity respectively with power supply be connected; The input end of clock of AD7810 is connected with the output terminal of clock of controller, and the conversion of AD7810 starts incoming signal end and is connected with the change over signal mouth of controller, and the serial data output terminal of AD7810 is connected with the data input pin of controller.The circuit diagram that other types chip is connected with amplifying circuit and controller, adopts the intrinsic basic connection of this chip, does not repeat at this.
In the preferred embodiment of the present invention, also comprise relay, one end of the input circuit of described relay is connected with one end of switch, the other end of described switch is connected with one end of power supply, the other end of described power supply is connected with the other end of the input circuit of described relay, and the output loop of described relay is connected with the electric power loop of described controller.
In the preferred embodiment of the present invention, also comprise filter circuit, described filter circuit is connected with the mouth of described angular transducer, described filter circuit comprises the 3rd electric capacity, the 4th electric capacity and inductance, one end of described inductance is connected with one end of the 3rd electric capacity, the other end of described inductance is connected with one end of the 4th electric capacity, the other end of described 3rd electric capacity and the other end of the 4th electric capacity respectively with power supply be connected.In the present embodiment, be not limited to adopt π type filter circuit, also can adopt the filter circuit of other types, routine T-shaped filter circuit or L-type filter circuit, its connection mode is technological means known in the art, does not repeat at this.
In the present embodiment, as shown in Figures 4 and 5, back mirror comprises body of backsight mirror 3, stepping motor (not shown) is installed in body of backsight mirror 3, the S. A. of stepping motor is fixed on and in road auxiliary mirror 4, or the S. A. of stepping motor is driven by transmission shaft and road back mirror rotates; And road time, stepping motor drive and road auxiliary mirror 3 rotate, body of backsight mirror and vehicle body keep geo-stationary.This and road auxiliary mirror be intended to original back mirror installs additional or new after after mirror on set up and road auxiliary mirror, do not affect the former rear-view mirror device of the vehicle and driving habit, increase the visual field of driver.
As shown in Figures 7 and 8, when driver turns's bearing circle, the also road auxiliary mirror of the right and left rotates simultaneously outside vehicle body, (the also road auxiliary mirror clickwise on the left side, the right and road auxiliary mirror left-hand revolution) like this driver just can see the vehicle, particularly its safety effect more aobvious when bend Shang Bing road or lane change of vehicle body both sides more mitre.Its deuterzooid the initial position of road supplemental rear vision system can be set as the angle more outside than body of backsight mirror, and road auxiliary mirror adds original left and right sides back mirror on the vehicle, turn or lane change time can see the vehicle in A, B, C tri-directions.Just can avoid eliminating driving blind area when keeping straight on like this and increase safety.
Should be noted that, when and road time, controller collects the angle of rotating of steering wheel, rotate a certain angle according to the corresponding control step motor of this angle, example bearing circle clickwise 20 degree, the magnitude of voltage that sensor exports is 3.050v, (the consistent 3v of magnitude of voltage exported when the magnitude of voltage of the inverting input input of amplifier changes with angular transducer non-angular after slide-changing resistor calibration) after 30 times is amplified through amplifying circuit, the magnitude of voltage that input A/D changes is 1.5v, the magnitude of voltage of input control device is changed into 1.5v through A/D, according to also road auxiliary mirror rotation 20 degree, stepping motor need rotate a few week, corresponding control step motor rotates sequential.It should be noted that, the data more than enumerated are all the data citings adopted in a preferred embodiment, and concrete data value also can be set according to actual conditions.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (7)
1. a vehicle merge backsight control system, it is characterized in that, comprise the angular transducer be arranged on steering wheel for vehicle bearing, the angle that described angular transducer turns over for detecting described bearing circle, the mouth of described angular transducer is connected with the signal input part of controller, the mouth of described controller is connected with the input end of driving circuit, the mouth of described driving circuit is connected with the input end of stepping motor, the signal that described controller exports according to angular transducer, control step driven by motor back mirror rotates;
When vehicle merge, bearing circle rotates, and angular transducer leaves just position, and the signal that described controller exports according to angular transducer is outwards rotated by control step driven by motor back mirror, expands the driver visual field;
When angular transducer resets to first position, described controller is inwardly rotated by control step driven by motor back mirror according to the signal that angular transducer exports and synchronously gets back to initial position.
2. vehicle merge backsight control system according to claim 1, it is characterized in that, described driving circuit comprises the first aerotron, and the collecting electrode of described first aerotron is connected with one end of the 15 resistance, and the other end of described 15 resistance is connected with power supply; The emitter of described first aerotron is connected respectively with one end of one end of the 7th resistance, one end of the first electric capacity and the 9th resistance respectively, the other end of described 7th resistance is connected with one end of the 8th resistance and the other end of described first electric capacity respectively, the other end of described 9th resistance is connected with one end of the first diode, and the other end of described first diode and the other end of described 8th resistance are connected with stepping motor respectively.
3. vehicle merge backsight control system according to claim 1, it is characterized in that, also comprise amplifying circuit, the input end of described amplifying circuit is connected with the mouth of described angular transducer, the mouth of described amplifier is connected with the signal input part of described controller, described amplifying circuit comprises amplifier, and the inverting input of described amplifier is connected with one end of the 4th resistance and one end of the 5th resistance respectively, and the other end of described 5th resistance is connected with the mouth of described amplifier; The normal phase input end of described amplifier is connected with one end of the second resistance and one end of the 3rd resistance respectively, the described other end of the second resistance is connected with the sliding end of slide-changing resistor, one end of described slide-changing resistor is connected with one end of power supply, the other end of described slide-changing resistor and the other end of described 3rd resistance respectively with power supply be connected.
4. vehicle merge backsight control system according to claim 3, is characterized in that, described second resistance is identical with the resistance of described 4th resistance, and described 3rd resistance is identical with the resistance of described 5th resistance.
5. vehicle merge backsight control system according to claim 3, it is characterized in that, also comprise A/D conversion, the signal input part of described A/D conversion is connected with the mouth of described amplifying circuit, the input end of clock of described A/D conversion is connected with the clock signal input terminal of controller, the data output end of described A/D conversion is connected with the signal input part of described controller, and the data input pin of described A/D conversion is connected with the data output end of controller.
6. vehicle merge backsight control system according to claim 1, it is characterized in that, also comprise relay, one end of the input circuit of described relay is connected with one end of switch, the other end of described switch is connected with one end of power supply, the other end of described power supply is connected with the other end of the input circuit of described relay, and the output loop of described relay is connected with the electric power loop of described controller.
7. vehicle merge backsight control system according to claim 1, it is characterized in that, also comprise filter circuit, described filter circuit is connected with the mouth of described angular transducer, described filter circuit comprises the 3rd electric capacity, the 4th electric capacity and inductance, one end of described inductance is connected with one end of the 3rd electric capacity, and the other end of described inductance is connected with one end of the 4th electric capacity, the other end of described 3rd electric capacity and the other end of the 4th electric capacity respectively with power supply be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719736.4A CN104442577B (en) | 2014-12-01 | 2014-12-01 | A kind of vehicle road backsight control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719736.4A CN104442577B (en) | 2014-12-01 | 2014-12-01 | A kind of vehicle road backsight control system |
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| Publication Number | Publication Date |
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| CN104442577A true CN104442577A (en) | 2015-03-25 |
| CN104442577B CN104442577B (en) | 2016-09-14 |
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| CN201410719736.4A Expired - Fee Related CN104442577B (en) | 2014-12-01 | 2014-12-01 | A kind of vehicle road backsight control system |
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2014
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|---|---|---|---|---|
| US20060072202A1 (en) * | 2001-05-21 | 2006-04-06 | Bonardi Timothy A | Rearview mirror constructed for efficient assembly |
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| US6841960B2 (en) * | 2002-04-19 | 2005-01-11 | Murakami Corporation | Vehicular mirror angle controller |
| CN2611224Y (en) * | 2002-12-02 | 2004-04-14 | 康晴 | Driving gear for electric commutator of reference mirror |
| CN201538284U (en) * | 2009-11-30 | 2010-08-04 | 温州大学 | Automatic turning vehicle rearview mirror device |
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|---|---|
| CN104442577B (en) | 2016-09-14 |
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