CN105083123A - Electronic assistance rear view system based on image communication - Google Patents
Electronic assistance rear view system based on image communication Download PDFInfo
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- CN105083123A CN105083123A CN201510529970.5A CN201510529970A CN105083123A CN 105083123 A CN105083123 A CN 105083123A CN 201510529970 A CN201510529970 A CN 201510529970A CN 105083123 A CN105083123 A CN 105083123A
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- 238000004891 communication Methods 0.000 title claims abstract description 23
- 230000000007 visual effect Effects 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000002604 ultrasonography Methods 0.000 claims description 18
- 238000005286 illumination Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
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- 230000004048 modification Effects 0.000 description 3
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Classifications
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- 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
- B60R1/001—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 integrated in the windows, e.g. Fresnel lenses
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- 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
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- 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
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
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- 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
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1253—Mirror assemblies combined with other articles, e.g. clocks with cameras, video cameras or video screens
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Traffic Control Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The present invention relates to an electronic assistance rear view system based on image communication. The electronic assistance rear view system is positioned on a motor vehicle and comprises a left side ultrasonic sensor, a right side ultrasonic sensor, a left side rear view camera, a right side rear view camera and an instrument panel controller; the left side ultrasonic sensor and the right side ultrasonic sensor are respectively positioned on the left side and the right side of the motor vehicle and are used for respectively detecting distances from a left vehicle body to an obstacle and from a right vehicle body to the obstacle; and the instrument panel controller is connected with the left side ultrasonic sensor, the right side ultrasonic sensor, the left side rear view camera and the right side rear view camera respectively, and determines whether to start the left side rear view camera and the right side rear view camera or not according to detection results of the left side ultrasonic sensor and the right side ultrasonic sensor. According to the electronic assistance rear view system, under the condition that passing spaces at the two sides of the motor vehicle are small, the left and right side rear view cameras are used to automatically replace a left rear view mirror and a right rear view mirror for rear view monitoring, and therefore the passing efficiency and the intelligence level of the motor vehicle are improved.
Description
The present invention is application number is 201510249831.7, the divisional application of application number to be May 16, denomination of invention in 2015 the be patent of " the electron assistant back-sight visual system based on Image Communication ".
Technical field
The present invention relates to the communications field, particularly relate to a kind of electron assistant back-sight visual system based on Image Communication.
Background technology
At every country, the quantity of self-propelled vehicle keeps growth state substantially, growing self-propelled vehicle and the contradiction relatively increased between slower path space, the difficult problem that be difficult to be in harmonious proportion of pendulum before each city management mechanism, in order to solve this contradiction, the simultaneously operation of conveniently chaufeur, how relatively to, reduce engine motor-car occupies space in the operator of self-propelled vehicle, to improve passage rate and efficiency also starts to make an issue of.
In motor-driven vehicle going process, especially at congested link, often to face the state that two car intersections or front and back car are staggered, at this moment, because path space is limited, need to compress taking up space of each self-propelled vehicle as far as possible, wherein, because vehicle body is difficult to reduce, if and two of each self-propelled vehicle back mirrors are packed up, horizontal space occupied by two back mirrors will be decreased, larger convenience is provided for two car intersections or front and back car interlock, but back mirror is the important traveling accessory appliances of chaufeur, driving safety hidden danger can be caused if packed up always, as can be seen here, how to determine two back mirror recovery sites and how to replace the additional function of back mirror, it is the problem that self-propelled vehicle operator needs to solve.
Thus, need a kind of new electron assistant backsight scheme, two back mirrors are packed up in the place of difficulty of can passing through in discovery self-propelled vehicle both sides automatically, keep passage space and traffic efficiency, simultaneously can also in the period of packing up two back mirrors, actv. alternative is taked to substitute the back vision function of two back mirrors, to keep driving safety.
Summary of the invention
In order to solve the problem, the invention provides a kind of electron assistant back-sight visual system based on Image Communication, first the passage space of ultrasonic technology monitoring motor vehicle car body both sides is adopted, secondly two back mirrors are automatically packed up when passage space deficiency by electronically, more crucially, the mode of high-definition camera is adopted to substitute the back vision function of back mirror in time, and the size of left and right back view picture can be adjusted on limited display screen according to both sides spatial diversity, solve intersection and difficult problem of overtaking other vehicles on the one hand, ensure the safe driving of chaufeur on the other hand.
According to an aspect of the present invention, provide a kind of electron assistant back-sight visual system based on Image Communication, be positioned on self-propelled vehicle, described back-sight visual system comprises left side ultrasonic transduter, right-side ultrasonic-wave sensor, left side rearview camera, right side rearview camera and gauge panel controller, described left side ultrasonic transduter and described right-side ultrasonic-wave sensor lay respectively at left side and the right side of self-propelled vehicle, for detecting the distance of left side car body and right side car body distance obstacle respectively, described gauge panel controller and described left side ultrasonic transduter, described right-side ultrasonic-wave sensor, described left side rearview camera is connected respectively with described right side rearview camera, based on the testing result of described left side ultrasonic transduter and described right-side ultrasonic-wave sensor, determine whether to start described left side rearview camera and described right side rearview camera.
More specifically, described based in the electron assistant back-sight visual system of Image Communication, also comprise: left side back mirror, comprise sinistral motor, left side transmission actuating unit and left side mirror body, described sinistral motor is connected respectively with described gauge panel controller and described left side transmission actuating unit, described left side transmission actuating unit is connected with described left side mirror body, described sinistral motor, when receiving the left side withdrawal signal that described gauge panel controller sends, drives described left side transmission actuating unit to realize the withdrawal of described left side mirror body, right rear, comprise dextral motor, right side transmission actuating unit and right side mirror body, described dextral motor is connected respectively with described gauge panel controller and described right side transmission actuating unit, described right side transmission actuating unit is connected with described right side mirror body, described dextral motor, when receiving the right side withdrawal signal that described gauge panel controller sends, drives described right side transmission actuating unit to realize the withdrawal of described right side mirror body, middle control telltale, is connected with described gauge panel controller, for receiving and showing back view picture, touch-screen, be integrated on described middle control telltale, for the touch operation according to user, receive user's input first on the left of distance threshold on the right side of distance threshold and second on the right side of distance threshold, first on the left of distance threshold, second, on the left of in the of described first distance threshold be greater than described second on the left of distance threshold, on the right side of in the of described first distance threshold be greater than described second on the right side of distance threshold, SDRAM, connects described touch-screen, for receiving and distance threshold on the right side of distance threshold and described second on the right side of distance threshold, described first on the left of distance threshold, described second on the left of storing described first, described left side ultrasonic transduter comprises left side ultrasound wave emitter, left side ultrasonic receiver and left side microcontroller, described left side microcontroller is connected respectively with described left side ultrasound wave emitter and described left side ultrasonic receiver, described left side ultrasound wave emitter launches ultrasound waves to the left side of self-propelled vehicle, the super sonic of the left side obstacle reflection of described left side ultrasonic receiver receiver motor-car, described left side microcontroller is according to the launch time of described left side ultrasound wave emitter, the time of reception of described left side ultrasonic receiver and ultrasonic propagation velocity calculate the distance of left side car body distance obstacle and export as left side distance, described ultrasonic propagation velocity is 340 metre per second (m/s)s, described right-side ultrasonic-wave sensor comprises right-side ultrasonic-wave emitter, right-side ultrasonic-wave receiver and right side microcontroller, described right side microcontroller is connected respectively with described right-side ultrasonic-wave emitter and described right-side ultrasonic-wave receiver, described right-side ultrasonic-wave emitter launches ultrasound waves to the right side of self-propelled vehicle, the super sonic of the right side obstacle reflection of described right-side ultrasonic-wave receiver receiver motor-car, described right side microcontroller is according to the launch time of described right-side ultrasonic-wave emitter, the time of reception of described right-side ultrasonic-wave receiver and ultrasonic propagation velocity calculate the distance of right side car body distance obstacle and export as right side distance, described left side rearview camera is positioned on the mirror body of described left side, when described left side mirror body is in retracted state, described left side rearview camera is towards car body left back, described left side rearview camera comprises left side CCD sensing unit, left side infrared fileter and left side secondary light source, described left side CCD sensing unit is taken to obtain left side back view picture to car body left back, described left side secondary light source provides illumination fill-in light for the shooting of described left side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described left side secondary light source surrounding environment are inversely proportional to, the resolution of described left side back view picture is 1920 × 1080, described left side infrared fileter is positioned at described left side CCD sensing unit anterior position, for stopping that infrared ray enters described left side CCD sensing unit, described right side rearview camera is positioned on the mirror body of described right side, when described right side mirror body is in retracted state, described right side rearview camera is towards car body right abaft, described right side rearview camera comprises right side CCD sensing unit, right side infrared fileter and right side secondary light source, described right side CCD sensing unit is taken to obtain right side back view picture to car body right abaft, described right side secondary light source provides illumination fill-in light for the shooting of described right side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described right side secondary light source surrounding environment are inversely proportional to, the resolution of described right side back view picture is 1920 × 1080, described right side infrared fileter is positioned at described right side CCD sensing unit anterior position, for stopping that infrared ray enters described right side CCD sensing unit, speech player, for playing phonetic warning information, described gauge panel controller is positioned at the gauge panel of self-propelled vehicle, with described left side back mirror, described right rear, described middle control telltale, described SDRAM, described left side ultrasonic transduter, described right-side ultrasonic-wave sensor, described left side rearview camera, described right side rearview camera is connected respectively with described speech player, when on the left of described left side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of left side distance, when on the right side of described right side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of right side distance, when on the left of described left side distance is less than or equal to described second during distance threshold, send left side and regain signal, start described left side rearview camera, left side back view picture is forwarded to described middle control telltale to show, when on the right side of described right side distance is less than or equal to described second during distance threshold, send right side and regain signal, start described right side rearview camera, right side back view picture is forwarded to described middle control telltale to show, wherein, when distance threshold on the left of the left side distance that described gauge panel controller receives is less than or equal to described second and right side distance be less than or equal to described second on the right side of distance threshold time, described left side back view picture and described right side back view picture are combined into combination picture and show to be sent to described middle control telltale, in described combination picture, according to described left side distance to the ratio of described right side distance, determine that described left side back view picture and described right side back view picture occupy the area percentage of described combination picture respectively, the ratio of described left side distance to described right side distance is less, and the area percentage that described left side back view picture occupies described combination picture is larger.
More specifically, described based in the electron assistant back-sight visual system of Image Communication: in described combination picture, described left side back view image position is in the left side of described combination picture, and described right side back view image position is in the right of described combination picture.
More specifically, described based in the electron assistant back-sight visual system of Image Communication: described middle control telltale is LCDs, is positioned at the central authorities of the gauge panel of self-propelled vehicle.
More specifically, also comprise: power equipment supply based in the electron assistant back-sight visual system of Image Communication described, be connected with the storage battery of self-propelled vehicle, for each electronic machine of described back-sight visual system provides electric power.
More specifically, described based in the electron assistant back-sight visual system of Image Communication: on the left of in the of described first distance threshold equal described first on the right side of distance threshold, on the left of in the of described second distance threshold equal described second on the right side of distance threshold.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the electron assistant back-sight visual system based on Image Communication illustrated according to an embodiment of the present invention.
Fig. 2 is the block diagram of the left side back mirror of the electron assistant back-sight visual system based on Image Communication illustrated according to an embodiment of the present invention.
Fig. 3 is the block diagram of the right rear of the electron assistant back-sight visual system based on Image Communication illustrated according to an embodiment of the present invention.
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the electron assistant back-sight visual system based on Image Communication of the present invention is described in detail.
Current, at the every country in the world, the owning amount of self-propelled vehicle is all a huge numeral, because path space construction is a very long process, construction speed is slow, long in time limit, economic input is high, need the cooperation of each department, thus the growth rate of path space is unable to catch up with the growth rate of self-propelled vehicle far away, each automobile driver met with such difficult problem: travel on the road in two tracks, if when road also having pedestrian or unpowered vehicle, overtaking other vehicles of the intersection of relative vehicle and front and back car is all very difficult, be easy to scratch accident.
How in limited passage space, to reduce taking up space of each self-propelled vehicle, to facilitate the driving of chaufeur, improve vehicle pass-through efficiency, it is the good departure point that self-propelled vehicle sales volume improves in self-propelled vehicle operator, for this reason, in the prior art, some self-propelled vehicle operators are that automotive designs push button back mirror reclaims electronic system, chaufeur is when observing passage space and being not enough, can by pressing button, temporary transient recovery two back mirrors, after current, continue to open two back mirrors.
But technique scheme exists two deficiencies: (1) needs chaufeur artificially to observe, and adds the manipulation tasks of chaufeur, and artificial precision of observing is not high; (2) within the time period of recovery two back mirrors, fail to adopt actv. to substitute backsight, cause the traveling insecurity in removal process.
In order to overcome above-mentioned deficiency, the present invention has built a kind of electron assistant back-sight visual system based on Image Communication, artificial observing pattern is substituted with ultrasonic electronic detection mode, to determine whether reclaim back mirror, substitute back mirror with high definition back view picture, reclaim the period at back mirror and throw away and can carry out backsight operation, and, by the difference in space, the left and right sides, determine the display size of the left and right sides back view picture on limited display screen, improve the intelligent level of rear viewing of motor vehicle system significantly.
Fig. 1 is the block diagram of the electron assistant back-sight visual system based on Image Communication illustrated according to an embodiment of the present invention, described back-sight visual system is positioned on self-propelled vehicle, comprise left side ultrasonic transduter 1, right-side ultrasonic-wave sensor 2, left side rearview camera 3, right side rearview camera 4 and gauge panel controller 5, described left side ultrasonic transduter 1 and described right-side ultrasonic-wave sensor 2 lay respectively at left side and the right side of self-propelled vehicle, described gauge panel controller 5 and described left side ultrasonic transduter 1, described right-side ultrasonic-wave sensor 2, described left side rearview camera 3 is connected respectively with described right side rearview camera 4.
Wherein, described left side ultrasonic transduter 1 and described right-side ultrasonic-wave sensor 2 are for detecting the distance of left side car body and right side car body distance obstacle respectively, described gauge panel controller 5, based on the testing result of described left side ultrasonic transduter 1 and described right-side ultrasonic-wave sensor 2, determines whether to start described left side rearview camera 3 and described right side rearview camera 4.
Then, continue to be further detailed the concrete structure of the electron assistant back-sight visual system based on Image Communication of the present invention.
As shown in Figure 2, described back-sight visual system also comprises left side back mirror 6, described left side back mirror 6 comprises sinistral motor 61, left side transmission actuating unit 62 and left side mirror body 63, described sinistral motor 61 is connected respectively with described gauge panel controller 5 and described left side transmission actuating unit 62, described left side transmission actuating unit 62 is connected with described left side mirror body 63, described sinistral motor 61, when receiving the left side withdrawal signal that described gauge panel controller 5 sends, drives described left side transmission actuating unit 62 to realize the withdrawal of described left side mirror body 63.
As shown in Figure 3, described back-sight visual system also comprises right rear 7, described right rear 7 comprises dextral motor 71, right side transmission actuating unit 72 and right side mirror body 73, described dextral motor 71 is connected respectively with described gauge panel controller 5 and described right side transmission actuating unit 72, described right side transmission actuating unit 72 is connected with described right side mirror body 73, described dextral motor 71, when receiving the right side withdrawal signal that described gauge panel controller 5 sends, drives described right side transmission actuating unit 72 to realize the withdrawal of described right side mirror body 73.
Described back-sight visual system also comprises: middle control telltale, is connected with described gauge panel controller 5, for receiving and showing back view picture.
Described back-sight visual system also comprises: touch-screen, be integrated on described middle control telltale, for the touch operation according to user, receive user's input first on the left of distance threshold on the right side of distance threshold and second on the right side of distance threshold, first on the left of distance threshold, second, on the left of in the of described first distance threshold be greater than described second on the left of distance threshold, on the right side of in the of described first distance threshold be greater than described second on the right side of distance threshold.
Described back-sight visual system also comprises: SDRAM, connects described touch-screen, for receiving and distance threshold on the right side of distance threshold and described second on the right side of distance threshold, described first on the left of distance threshold, described second on the left of storing described first.
Described left side ultrasonic transduter 1 comprises left side ultrasound wave emitter, left side ultrasonic receiver and left side microcontroller, described left side microcontroller is connected respectively with described left side ultrasound wave emitter and described left side ultrasonic receiver, described left side ultrasound wave emitter launches ultrasound waves to the left side of self-propelled vehicle, the super sonic of the left side obstacle reflection of described left side ultrasonic receiver receiver motor-car, described left side microcontroller is according to the launch time of described left side ultrasound wave emitter, the time of reception of described left side ultrasonic receiver and ultrasonic propagation velocity calculate the distance of left side car body distance obstacle and export as left side distance, described ultrasonic propagation velocity is 340 metre per second (m/s)s.
Described right-side ultrasonic-wave sensor 2 comprises right-side ultrasonic-wave emitter, right-side ultrasonic-wave receiver and right side microcontroller, described right side microcontroller is connected respectively with described right-side ultrasonic-wave emitter and described right-side ultrasonic-wave receiver, described right-side ultrasonic-wave emitter launches ultrasound waves to the right side of self-propelled vehicle, the super sonic of the right side obstacle reflection of described right-side ultrasonic-wave receiver receiver motor-car, described right side microcontroller is according to the launch time of described right-side ultrasonic-wave emitter, the time of reception of described right-side ultrasonic-wave receiver and ultrasonic propagation velocity calculate the distance of right side car body distance obstacle and export as right side distance.
Described left side rearview camera 3 is positioned on the mirror body of described left side, when described left side mirror body is in retracted state, described left side rearview camera is towards car body left back, described left side rearview camera 3 comprises left side CCD sensing unit, left side infrared fileter and left side secondary light source, described left side CCD sensing unit is taken to obtain left side back view picture to car body left back, described left side secondary light source provides illumination fill-in light for the shooting of described left side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described left side secondary light source surrounding environment are inversely proportional to, the resolution of described left side back view picture is 1920 × 1080, described left side infrared fileter is positioned at described left side CCD sensing unit anterior position, for stopping that infrared ray enters described left side CCD sensing unit.
Described right side rearview camera 4 is positioned on the mirror body of described right side, when described right side mirror body is in retracted state, described right side rearview camera is towards car body right abaft, described right side rearview camera 4 comprises right side CCD sensing unit, right side infrared fileter and right side secondary light source, described right side CCD sensing unit is taken to obtain right side back view picture to car body right abaft, described right side secondary light source provides illumination fill-in light for the shooting of described right side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described right side secondary light source surrounding environment are inversely proportional to, the resolution of described right side back view picture is 1920 × 1080, described right side infrared fileter is positioned at described right side CCD sensing unit anterior position, for stopping that infrared ray enters described right side CCD sensing unit.
Described back-sight visual system also comprises: speech player, for playing phonetic warning information.
Described gauge panel controller 5 is positioned at the gauge panel of self-propelled vehicle, with described left side back mirror 6, described right rear 7, described middle control telltale, described SDRAM, described left side ultrasonic transduter 1, described right-side ultrasonic-wave sensor 2, described left side rearview camera 3, described right side rearview camera 4 is connected respectively with described speech player, when on the left of described left side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of left side distance, when on the right side of described right side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of right side distance.
Described gauge panel controller 5 is when on the left of described left side distance is less than or equal to described second during distance threshold, send left side and regain signal, start described left side rearview camera 3, left side back view picture is forwarded to described middle control telltale to show, when on the right side of described right side distance is less than or equal to described second during distance threshold, send right side and regain signal, start described right side rearview camera 4, right side back view picture is forwarded to described middle control telltale and shows.
Wherein, when distance threshold on the left of the left side distance that described gauge panel controller 5 receives is less than or equal to described second and right side distance be less than or equal to described second on the right side of distance threshold time, described left side back view picture and described right side back view picture are combined into combination picture and show to be sent to described middle control telltale; In described combination picture, according to described left side distance to the ratio of described right side distance, determine that described left side back view picture and described right side back view picture occupy the area percentage of described combination picture respectively, the ratio of described left side distance to described right side distance is less, and the area percentage that described left side back view picture occupies described combination picture is larger.
In addition, in described electron assistant back-sight visual system: in described combination picture, described left side back view image position is in the left side of described combination picture, and described right side back view image position is in the right of described combination picture; Described middle control telltale is LCDs, is positioned at the central authorities of the gauge panel of self-propelled vehicle; Described electron assistant back-sight visual system also comprises power equipment supply, is connected with the storage battery of self-propelled vehicle, for each electronic machine of described back-sight visual system provides electric power; And, on the left of in the of described first distance threshold equal described first on the right side of distance threshold, on the left of in the of described second distance threshold equal described second on the right side of distance threshold.
Wherein, CCD, English full name: Charge-coupledDevice, Chinese full name: charge coupled cell.Can ccd image sensor be called, also be image controller.CCD is a kind of semiconductor devices, optical image can be converted into digital signal.The small photoactive substance of the upper implantation of CCD is called pixel (Pixel).The pixel count that one piece of CCD comprises is more, and its screen resolution provided is also higher.The effect of CCD is just as film, but he converts charge signal to optical signal.CCD there is the photodiode of many marshallings, can light be responded to, and optical signal is transformed into electric signal, convert data image signal to through external sampling amplification and analog to digital conversion circuit.
CCD is widely used in digital photography, astronomy, especially optical telemetry technology, optics and frequency spectrum glass and high speed photography, as Luckyimaging.CCD is widely used in pick up camera, digital camera and scanner, only use dot matrix CCD in pick up camera, namely x, y both direction is comprised for absorbing plane picture, and in scanner, use linear CCD, he only has x direction, and y scanning direction has been come by the mechanical device of scanner.
Optical signalling directly can be converted to analog current signal by ccd image sensor, and current signal, through amplifying and analogue to digital conversion, realizes the acquisition of image, storage, transmission, process and reproduction.Its distinguishing feature is: 1. small in volume; 2. power consumption is little, and operating voltage is low, shock resistance and vibrations, stable performance, and the life-span is long; 3. highly sensitive, noise is low, and dynamic range is large; 4. fast response time, have self-scanning function, pattern distortion is little, without image retention; 5. apply super large-scale integration technology to produce, the degree of integration of pixel is high, and size is accurate, and merchandized handling cost is low.Therefore, the instrument of many employing optical method for measuring external diameters, using CCD device as photelectric receiver.
CCD functionally can be divided into line array CCD and the large class of area array CCD two.CCD internal electrode is divided into array by line array CCD usually, and often group is called a phase, and applies same clock pulse.The required number of phases is determined by CCD chip inner structure, and the different CCD of structure can meet the operating needs of different occasion.Line array CCD have single raceway groove and double channel point, its photosensitive area is mos capacitance or photodiode structure, and production technology is relatively simple.He is made up of photosensitive area array and shift register scanning circuit, and feature is that process information speed is fast, and peripheral circuit is simple, easily realize controlling in real time, but obtaining information amount is little, can not process complicated image (line array CCD as shown at right).The structure of area array CCD is more complex, and he is arranged in a square formation by a lot of photosensitive area, and connects into a device with certain form, and obtaining information amount is large, can process complicated image.
Adopt the electron assistant back-sight visual system based on Image Communication of the present invention, for existing rear viewing of motor vehicle system bring in default of actv. backsight substitute mode cannot the problem of compromise between security and convenience, using ultrasonic testing result as trigger condition, start high definition camera device replacement back mirror and carry out backsight operation, the simultaneously perfect display effect of back view picture, improve the intelligent level of self-propelled vehicle supplemental rear vision system, take into account traveling convenience and safety, while having saved path space, ensure that traffic safety.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (2)
1. the electron assistant back-sight visual system based on Image Communication, be positioned on self-propelled vehicle, it is characterized in that, described back-sight visual system comprises left side ultrasonic transduter, right-side ultrasonic-wave sensor, left side rearview camera, right side rearview camera and gauge panel controller, described left side ultrasonic transduter and described right-side ultrasonic-wave sensor lay respectively at left side and the right side of self-propelled vehicle, for detecting the distance of left side car body and right side car body distance obstacle respectively, described gauge panel controller and described left side ultrasonic transduter, described right-side ultrasonic-wave sensor, described left side rearview camera is connected respectively with described right side rearview camera, based on the testing result of described left side ultrasonic transduter and described right-side ultrasonic-wave sensor, determine whether to start described left side rearview camera and described right side rearview camera.
2., as claimed in claim 1 based on the electron assistant back-sight visual system of Image Communication, it is characterized in that, described back-sight visual system also comprises:
Left side back mirror, comprise sinistral motor, left side transmission actuating unit and left side mirror body, described sinistral motor is connected respectively with described gauge panel controller and described left side transmission actuating unit, described left side transmission actuating unit is connected with described left side mirror body, described sinistral motor, when receiving the left side withdrawal signal that described gauge panel controller sends, drives described left side transmission actuating unit to realize the withdrawal of described left side mirror body;
Right rear, comprise dextral motor, right side transmission actuating unit and right side mirror body, described dextral motor is connected respectively with described gauge panel controller and described right side transmission actuating unit, described right side transmission actuating unit is connected with described right side mirror body, described dextral motor, when receiving the right side withdrawal signal that described gauge panel controller sends, drives described right side transmission actuating unit to realize the withdrawal of described right side mirror body;
Middle control telltale, is connected with described gauge panel controller, for receiving and showing back view picture;
Touch-screen, be integrated on described middle control telltale, for the touch operation according to user, receive user's input first on the left of distance threshold on the right side of distance threshold and second on the right side of distance threshold, first on the left of distance threshold, second, on the left of in the of described first distance threshold be greater than described second on the left of distance threshold, on the right side of in the of described first distance threshold be greater than described second on the right side of distance threshold;
SDRAM, connects described touch-screen, for receiving and distance threshold on the right side of distance threshold and described second on the right side of distance threshold, described first on the left of distance threshold, described second on the left of storing described first;
Described left side ultrasonic transduter comprises left side ultrasound wave emitter, left side ultrasonic receiver and left side microcontroller, described left side microcontroller is connected respectively with described left side ultrasound wave emitter and described left side ultrasonic receiver, described left side ultrasound wave emitter launches ultrasound waves to the left side of self-propelled vehicle, the super sonic of the left side obstacle reflection of described left side ultrasonic receiver receiver motor-car, described left side microcontroller is according to the launch time of described left side ultrasound wave emitter, the time of reception of described left side ultrasonic receiver and ultrasonic propagation velocity calculate the distance of left side car body distance obstacle and export as left side distance, described ultrasonic propagation velocity is 340 metre per second (m/s)s,
Described right-side ultrasonic-wave sensor comprises right-side ultrasonic-wave emitter, right-side ultrasonic-wave receiver and right side microcontroller, described right side microcontroller is connected respectively with described right-side ultrasonic-wave emitter and described right-side ultrasonic-wave receiver, described right-side ultrasonic-wave emitter launches ultrasound waves to the right side of self-propelled vehicle, the super sonic of the right side obstacle reflection of described right-side ultrasonic-wave receiver receiver motor-car, described right side microcontroller is according to the launch time of described right-side ultrasonic-wave emitter, the time of reception of described right-side ultrasonic-wave receiver and ultrasonic propagation velocity calculate the distance of right side car body distance obstacle and export as right side distance,
Described left side rearview camera is positioned on the mirror body of described left side, when described left side mirror body is in retracted state, described left side rearview camera is towards car body left back, described left side rearview camera comprises left side CCD sensing unit, left side infrared fileter and left side secondary light source, described left side CCD sensing unit is taken to obtain left side back view picture to car body left back, described left side secondary light source provides illumination fill-in light for the shooting of described left side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described left side secondary light source surrounding environment are inversely proportional to, the resolution of described left side back view picture is 1920 × 1080, described left side infrared fileter is positioned at described left side CCD sensing unit anterior position, for stopping that infrared ray enters described left side CCD sensing unit,
Described right side rearview camera is positioned on the mirror body of described right side, when described right side mirror body is in retracted state, described right side rearview camera is towards car body right abaft, described right side rearview camera comprises right side CCD sensing unit, right side infrared fileter and right side secondary light source, described right side CCD sensing unit is taken to obtain right side back view picture to car body right abaft, described right side secondary light source provides illumination fill-in light for the shooting of described right side CCD sensing unit, the intensity of described illumination fill-in light and the light luminance of described right side secondary light source surrounding environment are inversely proportional to, the resolution of described right side back view picture is 1920 × 1080, described right side infrared fileter is positioned at described right side CCD sensing unit anterior position, for stopping that infrared ray enters described right side CCD sensing unit,
Speech player, for playing phonetic warning information;
Described gauge panel controller is positioned at the gauge panel of self-propelled vehicle, with described left side back mirror, described right rear, described middle control telltale, described SDRAM, described left side ultrasonic transduter, described right-side ultrasonic-wave sensor, described left side rearview camera, described right side rearview camera is connected respectively with described speech player, when on the left of described left side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of left side distance, when on the right side of described right side distance is less than or equal to described first during distance threshold, control described speech player and play the partially narrow information warning of right side distance, when on the left of described left side distance is less than or equal to described second during distance threshold, send left side and regain signal, start described left side rearview camera, left side back view picture is forwarded to described middle control telltale to show, when on the right side of described right side distance is less than or equal to described second during distance threshold, send right side and regain signal, start described right side rearview camera, right side back view picture is forwarded to described middle control telltale to show,
Wherein, when distance threshold on the left of the left side distance that described gauge panel controller receives is less than or equal to described second and right side distance be less than or equal to described second on the right side of distance threshold time, described left side back view picture and described right side back view picture are combined into combination picture and show to be sent to described middle control telltale;
Wherein, in described combination picture, according to described left side distance to the ratio of described right side distance, determine that described left side back view picture and described right side back view picture occupy the area percentage of described combination picture respectively, the ratio of described left side distance to described right side distance is less, and the area percentage that described left side back view picture occupies described combination picture is larger;
In described combination picture, described left side back view image position is in the left side of described combination picture, and described right side back view image position is in the right of described combination picture;
Described middle control telltale is LCDs, is positioned at the central authorities of the gauge panel of self-propelled vehicle;
Described back-sight visual system also comprises:
Power equipment supply, is connected with the storage battery of self-propelled vehicle, for each electronic machine of described back-sight visual system provides electric power;
On the left of in the of described first distance threshold equal described first on the right side of distance threshold, on the left of in the of described second distance threshold equal described second on the right side of distance threshold.
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| CN201510249831.7A CN104802712B (en) | 2015-05-16 | 2015-05-16 | Based on the electron assistant back-sight visual system of Image Communication |
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| CN201510249831.7A Expired - Fee Related CN104802712B (en) | 2015-05-16 | 2015-05-16 | Based on the electron assistant back-sight visual system of Image Communication |
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Cited By (2)
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| CN107599974A (en) * | 2016-07-12 | 2018-01-19 | 现代自动车株式会社 | Substitute the display system of side-view mirror and for controlling it to export the method for brightness |
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| CN106585498A (en) * | 2016-12-21 | 2017-04-26 | 奇瑞汽车股份有限公司 | Automobile rearview mirror folding system and control method |
| CN109094504A (en) * | 2018-09-28 | 2018-12-28 | 东南（福建）汽车工业有限公司 | A kind of exterior mirror obstacle avoidance system and method based on preposition parking radar |
| CN110254381A (en) * | 2019-07-12 | 2019-09-20 | 奇瑞新能源汽车股份有限公司 | A kind of automotive visibility auxiliary system and method based on voice control |
| CN111216630A (en) * | 2019-09-19 | 2020-06-02 | 浙江工商大学 | Vehicle auxiliary system based on artificial intelligence |
| CN111775839A (en) * | 2020-06-30 | 2020-10-16 | 四川职业技术学院 | Vehicle-mounted electronic rearview mirror using method and system |
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Also Published As
| Publication number | Publication date |
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| CN104802712B (en) | 2016-01-27 |
| CN105083123B (en) | 2016-05-25 |
| CN104802712A (en) | 2015-07-29 |
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