CN107678128A - Wisdom community parking management system and its method of work - Google Patents
Wisdom community parking management system and its method of work Download PDFInfo
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- CN107678128A CN107678128A CN201710930242.4A CN201710930242A CN107678128A CN 107678128 A CN107678128 A CN 107678128A CN 201710930242 A CN201710930242 A CN 201710930242A CN 107678128 A CN107678128 A CN 107678128A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The present invention relates to a kind of wisdom community parking management system and its method of work, this wisdom community parking management system includes：Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；The output end of the ground induction coil and the input of supervising device are electrically connected with, and the control output end of the supervising device and the control terminal of the drive mechanism of door shelves are electrically connected with；The supervising device is suitable to the car plate image data that shoots after ground induction coil triggering, and by the car plate image data send to cell server so that the car plate is identified, confirmed after, then control supervising device opening door shelves clearance vehicle；Whether the wisdom community parking management system and its method of work of the present invention can be the vehicle of this cell owner by Car license recognition, be let pass if so, then opening door shelves, if it is not, then door shelves remain off, cell can accomplish it is unattended, it is self-service current.
Description
Technical field
The present invention relates to a kind of parking management system, particularly relates to a kind of wisdom community parking management system.
Background technology
Electrically operated gate shelves can be set on residential quarters doorway, and many cell radio-frequency cards or bluetooth card identify whether it is that this is small
The vehicle in area.
But above two mode the problem of existing, is, if radio-frequency card place in the car it is improper, can be after the sun be exposed to the sun
Be distorted deformation, causes to damage；Bluetooth card needs button cell to be powered, therefore, it is necessary to change battery after long-term use.
Therefore, if car plate can be identified, above mentioned problem can effectively be avoided.
The content of the invention
It is an object of the invention to provide a kind of wisdom community parking management system and its method of work.
In order to solve the above-mentioned technical problem, the invention provides a kind of wisdom community parking management system, including：
Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；
The output end of the ground induction coil and the input of supervising device are electrically connected with, the control output of the supervising device
End and the control terminal of the drive mechanism of door shelves are electrically connected with；
The supervising device is suitable to the car plate image data that shoots after ground induction coil triggering, and by the car plate image data
Send to cell server so that the car plate is identified, confirmed after, then control supervising device opening door shelves clearance vehicle.
Further, the supervising device includes：Wide-angle high definition day and night camera, central processing unit, and with center
The connected wireless module of processor；
The output end of the ground induction coil and the respective input of central processing unit are electrically connected with, and
The control output end of the central processing unit and the control terminal of drive mechanism are electrically connected with.
Further, the wide-angle high definition day and night camera includes：Miniature video camera lens combination；The miniature video camera is saturating
Mirror system includes preceding group lens and rear group lens successively from object side, wherein group lens include successively from object side before described
Convex surface facing the first negative crescent moon lens, the second negative lens, the 3rd negative lens, the 4th positive lens, the 5th negative lens of object side；Institute
State rear group of lens includes the 6th positive lens, the 7th negative lens, the 8th positive lens, the 9th negative lens, the tenth successively from object side
Positive lens, the 6th positive lens are biconvex lens；Airspace between first negative the crescent moon lens and the second negative lens is
5.95~7.80mm, the airspace between the 6th positive lens and the 7th negative lens is 2.75~0.10mm, described preceding group
Airspace between lens and the 6th positive lens is 5.75~9.35mm；Wherein, object side is most leaned on from the preceding group of lens
The lens surfaces of the first negative crescent moon lens be most by the lens surface of the 6th positive lens of object side to group lens after described
The distance on optical axis only is expressed as D1, and the focal length of the imaging lens module is expressed as f, the focal length table of lens is organized after described
Fb is shown as, and meets relational expression：
0.33 ＜ f/fb ＜ 0.7,
1.0 ＜ D1/f ＜ 5.1.
Further, refractive indexes to d line of the NdfL as the 5th negative lens is set, vdfL is the 5th negative lens
To the Abbe number of d lines, vd2p is the positive lens for the compound lens that the 6th positive lens and the 7th negative lens are formed to d lines
Abbe number, vd2n are the Abbe number to d lines of the negative lens for the compound lens that the 6th positive lens and the 7th negative lens are formed,
And meet following relationship：
NdfL ＞ 3.8,
50 ＜ vdfL ＜ 58,
8 ＜ vd2p-vd2n ＜ 44.
Further, the NdfL ＞ 4.8.
Further, the miniature video camera lens combination also meets following relationship：
0.4 ＜ (CT1+CT2+CT3+CT4+CT5)/f ＜ 0.55, wherein
The focal length of the imaging lens module is f, and thickness of the first negative crescent moon lens on optical axis is CT1, it is described
Thickness of second negative lens on optical axis is CT2, thickness of the 3rd negative lens on optical axis is CT3, the 4th positive lens
Thickness on optical axis is CT4, thickness of the 5th negative lens on optical axis is CT5。
Further, the Abbe number of the first negative crescent moon lens of the preceding group lens is less than 18, the Abbe number of the second negative lens
More than 13 and less than 32, the Abbe number of the 3rd negative lens is more than 23 and less than 35, the Abbe number of the 4th positive lens and the 5th negative
The ratio of the Abbe number of mirror is more than 3.5 and less than 4.3.
Further, the preceding group lens and the rear group lens comprise at least one group of compound lens.
Further, the second negative lens and the 3rd negative lens of the preceding group lens, and the rear group lens the 8th are just saturating
Mirror and the 9th negative lens, have respectively constituted compound lens.
Another aspect, present invention also offers a kind of method of work of wisdom community parking management system, including：
Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；
The output end of the ground induction coil and the input of supervising device are electrically connected with, the control output of the supervising device
End and the control terminal of the drive mechanism of door shelves are electrically connected with；
The supervising device is suitable to the car plate image data that shoots after ground induction coil triggering, and by the car plate image data
Send to cell server so that the car plate is identified, confirmed after, then control supervising device opening door shelves clearance vehicle.
Beneficial effects of the present invention：The wisdom community parking management system and its method of work of the present invention can pass through car plate
Identify whether be this cell owner vehicle, let pass if so, then opening door shelves, if it is not, then door shelves remain off,
Cell can accomplish it is unattended, it is self-service current.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of wisdom community parking management system provided by the invention；
Fig. 2 is the schematic diagram according to the camera-lens system under wide-angle pattern of exemplary embodiment；
Fig. 3 is the schematic diagram according to the camera-lens system in the case where taking the photograph apotype of exemplary embodiment.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment 1
As shown in figure 1, a kind of wisdom community parking management system that the present embodiment provides, including：
Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；
The output end of the ground induction coil and the input of supervising device are electrically connected with, the control output of the supervising device
End and the control terminal of the drive mechanism of door shelves are electrically connected with；The supervising device is suitable to the car plate shot after ground induction coil triggering
Image data, and by the car plate image data send to cell server so that the car plate is identified, confirmed after, then control prison
Control device and open door shelves clearance vehicle.
The car plate of owner can input into cell server in advance forms car plate database, when supervising device shoots car plate
After image, license board information is sent to cell server, if being matched in car plate database, opens door shelves clearance vehicle, it is no
Then door shelves remain off.
In the present embodiment, the supervising device includes：Wide-angle high definition day and night camera, central processing unit, and
The wireless module being connected with central processing unit；The output end of the ground induction coil and the respective input of central processing unit electrically connect
Connect, and the control terminal of the control output end of the central processing unit and drive mechanism is electrically connected with.
The central processing unit can use arm processor, and the wireless module can use 4G either 3G or WiFi
Module.
Whether the wisdom community parking management system and its method of work of the present invention can be this cell by Car license recognition
The vehicle of owner, let pass if so, then opening door shelves, if it is not, then door shelves remain off, cell can accomplish nobody
It is on duty, it is self-service current.
One of part important as supervising device, along with the trend toward miniaturization of supervising device, its camera installed
It is also required to that there is corresponding miniaturization, and also more and more higher is required for the definition of shooting, i.e., for the light in camera
Learn the camera lens also performance such as further requirement high-resolution.Other most camera can only be shot in the case where brightness is enough
To enough images, especially night can not obtain clearly image under dark environment.
Therefore, the car plate of evening disengaging dolly is identified in order to improve, and in order to even connect the small thin of object
Section is recorded with being aware that, lens system should be compensated satisfactorily in aberration caused by the neighboring area of image.It is however, general
Logical ight camera is difficult to minimize lens system if high optical property to be realized, and in order that such camera lens
System compact can increase manufacturing cost.Accordingly, it is difficult to meet high optical property and low manufacturing cost simultaneously.Take the photograph in the prior art
As the camera-lens system of the zoom of head have can satisfactorily aberration for compensation, but with the overall size of lens system
The problem of increase.
The wide-angle high definition day and night camera, it has a kind of miniature video camera lens combination, and the miniature video camera is saturating
Mirror system includes preceding group lens and rear group lens successively from object side.The miniature video camera lens system structure is compact, F numbers
Small, wide-angle and there is good optical property.
Fig. 2 and Fig. 3 is the schematic diagram according to the miniature video camera lens combination of exemplary embodiment.Fig. 2 is shown in wide-angle mould
Miniature video camera lens combination under formula, Fig. 3 show the miniature video camera lens system in the case where taking the photograph apotype according to exemplary embodiment
System.
Included successively from object side O into image side I according to the miniature video camera lens combination of exemplary embodiment：Preceding group of lens
10th, diaphragm ST and rear group lens 20.Optical block G as such as optical light filter or panel may be placed at rear group of lens 20
Between image planes IP.
As shown in Figures 2 and 3, such miniature video camera lens combination according to exemplary embodiment can be configured as along light
Lens 20 are organized to perform zoom after direction of principal axis movement.Preceding group of lens 10 can be configured as moving along optical axis direction, and then be configured
To perform focusing by compensating due to the fluctuation of change image plane and caused by of the distance to object side O.Here, preceding group it is saturating
Mirror 10 has negative refractive power, and rear group lens 20 have positive refractive power.
Specifically, preceding group of lens 10 from object side O into image side I include the first negative crescent moon lens 11, the second negative lens 12,
3rd negative lens 13, the 4th positive lens 14, the 5th negative lens 15, wherein, the first negative crescent moon lens 11 of the preceding group lens 10
Abbe number be less than 18, the Abbe number of the second negative lens 12 is more than 13 and less than 32, and the Abbe number of the 3rd negative lens 13 is more than 23
And less than 35, the ratio of the Abbe number of the 4th positive lens 14 and the Abbe number of the 5th negative lens 15 is more than 3.5 and less than 4.3.
High refractive power is needed to improve the negative crescent moon lens 11 and second of first with negative refractive power in preceding group of lens 10
The magnifying power of negative lens 12, i.e. need high refractive power to improve the zoom ratio of the first negative negative lens 12 of crescent moon lens 11 and second
Rate.Therefore, each needed in the first negative negative lens 12 of crescent moon lens 11 and second with high index of refraction.Accordingly, even if zoom
Ratio increase, the overall size of camera-lens system can be also miniaturized.In addition, it is necessary to by the first negative crescent moon in preceding group of lens 10
Difference between the Abbe number of the Abbe number of lens 11 and the second negative lens 12 is arranged to larger, so as to compensate putting for preceding group of lens 10
Aberration during big rate increase.
Airspace between first negative the crescent moon lens and the second negative lens is 5.95~7.80mm, and the described 6th just
Airspace between lens and the 7th negative lens is 2.75~0.10mm, and the sky between lens and the 6th positive lens is organized before described
Gas is at intervals of 5.75~9.35mm.
Meanwhile when the Abbe number of the first negative negative lens 12 of crescent moon lens 11 and second meets above-mentioned condition, leave as flat
Face center can satisfactorily be compensated up to the aberration of the peripheral part of 0.5 visual field or more, but from image plane center 0.5
The aberration of middle body within visual field needs to compensate by other method.In other words, it is necessary to control the 4th positive lens
The Abbe number of Abbe number and the 5th negative lens, to compensate the aberration of middle body.Therefore, the Abbe number and the 5th of the 4th positive lens
The ratio of the Abbe number of negative lens is more than 3.5 and less than 4.3.
In addition, NdfL：The refractive index to d lines of 5th negative lens, vdfL：5th negative lens to d lines
Abbe number, vd2p：The Abbe number to d lines of the positive lens for the compound lens that 6th positive lens and the 7th negative lens are formed,
vd2n：The Abbe number to d lines of the negative lens for the compound lens that 6th positive lens and the 7th negative lens are formed, meets following
Relational expression：
NdfL ＞ 3.8,
50 ＜ vdfL ＜ 58,
8 ＜ vd2p-vd2n ＜ 44.
More preferably, the NdfL ＞ 4.8.
Meet following relationship：0.4 ＜ (CT1+CT2+CT3+CT4+CT5)/f ＜ 0.55, wherein,
The focal length of the imaging lens module is f, and thickness of the first negative crescent moon lens on optical axis is CT1, it is described
Thickness of second negative lens on optical axis is CT2, thickness of the 3rd negative lens on optical axis is CT3, the 4th positive lens
Thickness on optical axis is CT4, thickness of the 5th negative lens on optical axis is CT5。
Because the 3rd negative lens 13 and the 4th positive lens 14 are glued together and balsaming lens is formed, therefore balsaming lens
The compensation of aberration of middle body can pass through the refractive index of the refractive index and the 4th positive lens 14 that increase by the 3rd negative lens 13
Difference performs.Meanwhile when the 4th positive lens Abbe number and the 5th negative lens Abbe number ratio it is excessive when, it can be seen that as
Difference increase.
Wherein, D1 represent from the preceding group of lens most by object side the first negative crescent moon lens lens surface to described
That organizes lens afterwards most represents whole wide-angle by the distance on optical axis untill the lens surface of the 6th positive lens of object side, f
The focal length of high definition day and night miniature imaging lens, the focal length of group lens, meets relational expression after fb represents described：
0.33 ＜ f/fb ＜ 0.7,
1.0 ＜ D1/f ＜ 5.1.
It can be miniaturized, and made us in its overall size according to the miniature video camera lens combination of exemplary embodiments mentioned above
Satisfactorily perform the compensation to aberration.
Organize lens 20 afterwards includes the 6th positive lens 21, the 7th negative lens 22, the 8th positive lens from object side O into image side I
23rd, the 9th negative lens 24, the tenth positive lens 25, the 6th positive lens 21 are biconvex lens,.
The construction of group lens 20 can also contribute to the miniaturization of overall size after such, while to camera-lens system
In aberration satisfactorily perform compensation.Especially, the 6th positive lens 21 may include at least one aspherical, with satisfactory
Ground performs the compensation to aberration.Tenth positive lens 25 of meniscus shape may include at least one aspherical and have positive dioptric simultaneously
Power.Therefore, can satisfactorily compensate can be in coma caused by neighboring area for group lens 20 afterwards.
The aberration of peripheral part is compensated according to the miniature video camera lens combination of exemplary embodiments mentioned above and kept simultaneously
The miniaturization of overall size.In addition, miniature video camera lens combination effectively compensates for the color from visible region near infrared light region
Difference.Therefore, when being applied to utilize by image pick-up device on daytime according to the miniature video camera lens combination of exemplary embodiment
Visible ray capture images and night by image pick-up device utilize near infrared light capture images image capture system when, then
It can suppress phenomena such as out of focus when being converted to Night from day mode or being converted to day mode from Night.Cause
This, without random daytime or night, can capture the image of high quality.
Table 1 below and table 2 show the design data of the miniature video camera lens combination shown in Fig. 2 and Fig. 3.In design data
In, r represents radius of curvature (unit：Mm), d represents the thickness (unit in lens centre in form：Mm) or between two lens
Spacing (unit：Mm), nd expression refractive index, vd represent Abbe number.
Table 1
In table 1, S8 represents diaphragm ST surface, and S19 and S20 represent the surface of optical block G both sides, and S21 tables
Show image planes IP surface.In addition, in table 1, * represents aspherical.
Table 2 shows the asphericity coefficient of the miniature video camera lens combination shown in Fig. 2 and Fig. 3.In table 2, E-m (m:It is natural
Number) expression × 10-m.
Table 2
| Surface number | K | A | B | C | D |
| S9 | -1.2300 | 5.45E-05 | -9.54E-07 | -7.67E-08 | -5.22E-11 |
| S10 | -3.4058 | 1.40E-04 | -6.64E-07 | -1.27E-07 | 8.13E-10 |
| S17 | 0 | 4.07E-04 | -9.97E-06 | 7.86E-07 | -4.24E-08 |
| S18 | 0 | 5.97E-04 | -1.75E-05 | 1.53E-06 | -7.27E-08 |
Table 3 show shown in Fig. 2 and Fig. 3 respectively in wide-angle pattern and Jiao of miniature video camera lens combination taken the photograph under apotype
Away from (f, unit：Mm), f numbers (Fno), the angle of visual field (FOV, unit °) and variable range (unit：mm).
Table 3
| f | Fno | FOV | D7 | D8 | D18 | |
| Wide-angle pattern | 2.93 | 1.25 | 71.81 | 18.64 | 8.94 | 3.8 |
| Take the photograph apotype | 8.55 | 2.34 | 23.28 | 2.43 | 0.75 | 11.99 |
Further, the lens of the rear group lens are aspherical including at least one, and the Abbe number of the 6th positive lens is more than
30 and less than 45, the ratio of the Abbe number of the 7th negative lens and the Abbe number of the tenth positive lens is more than 1.5 and is less than 3.0.
Diaphragm is provided between the preceding group of lens and the rear group lens, diaphragm size can be adjusted.
Meet the ＜ of relational expression 2.0 | R6a/f | ＜ 3.5, wherein, the 6th positive lens of group lens after R6a represents described
Object side surface radius of curvature.
Group lens and the rear group lens comprise at least one group of compound lens before described.
The second negative lens and the 3rd negative lens of group lens before described, and the rear group positive lens of lens the 8th and the 9th
Negative lens, compound lens is respectively constituted.
Meet the ＜ of relational expression 0.3 | R10a/f | ＜ 1.0, wherein, the described tenth of group lens is just saturating after R10a represents described
The radius of curvature of mirror object side surface.
As described above, according to exemplary embodiment, can be achieved satisfactorily to compensate for the miniature video camera lens system of aberration
System, so that the camera for possessing the wisdom community parking management system of the miniature video camera lens realizes wide-angle high definition day and night two
With.However, above-mentioned miniature video camera lens combination does not limit present inventive concept.
In summary, in wisdom community parking management system of the invention miniature video camera lens combination by from object side according to
It is secondary to be arranged with preceding group of lens, the rear ten chip architectures composition organized lens and formed, lean on to ten powers of a lens arrangements and most object
The shape of the lens of side is suitably set, and is formed in a manner of conditional as defined in satisfaction, therefore it is tight to provide structure
Gather, F numbers are small, wide-angle and with good optical property wide-angle high definition day and night camera and possess wide-angle high definition day
The wisdom community parking management system of night dual-purpose camera.
This miniature video camera lens combination is aided in from high refraction, the optical glass material of low dispersion by computer opticses
Design and optimization correct various aberrations and the distortion of optical lens, camera lens is realized high-resolution, big thang-kng amount, day and night confocal
Etc. performance.
Embodiment 2
On the basis of embodiment 1, the present embodiment additionally provides a kind of wisdom community parking management system as described in Example 1
The method of work of system, including：
Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；
The output end of the ground induction coil and the input of supervising device are electrically connected with, the control output of the supervising device
End and the control terminal of the drive mechanism of door shelves are electrically connected with；
The supervising device is suitable to the car plate image data that shoots after ground induction coil triggering, and by the car plate image data
Send to cell server so that the car plate is identified, confirmed after, then control supervising device opening door shelves clearance vehicle.
Wherein, the concrete principle of the supervising device, structure and method of work carry out detail parameters in embodiment 1, this
Place repeats no more.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (10)
- A kind of 1. wisdom community parking management system, it is characterised in that including：Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；The input of the output end of the ground induction coil and supervising device is electrically connected with, the control output end of the supervising device with The control terminal of the drive mechanism of door shelves is electrically connected with；The supervising device is suitable to the car plate image data shot after ground induction coil triggering, and the car plate image data is sent To cell server so that the car plate is identified, confirmed after, then control supervising device open door shelves clearance vehicle.
- 2. wisdom community parking management system according to claim 1, it is characterised in thatThe supervising device includes：Wide-angle high definition day and night camera, central processing unit, and be connected with central processing unit Wireless module；The output end of the ground induction coil and the respective input of central processing unit are electrically connected with, andThe control output end of the central processing unit and the control terminal of drive mechanism are electrically connected with.
- 3. wisdom community parking management system according to claim 2, it is characterised in thatThe wide-angle high definition day and night camera includes：Miniature video camera lens combination；The miniature video camera lens combination includes preceding group lens and rear group lens successively from object side, whereinIt is described before group lens from object side successively include convex surface facing the first negative crescent moon lens of object side, the second negative lens, 3rd negative lens, the 4th positive lens, the 5th negative lens；Group lens include the 6th positive lens, the 7th negative lens, the 8th positive lens, the 9th negative successively from object side after described Mirror, the tenth positive lens, the 6th positive lens are biconvex lens；Airspace between first negative the crescent moon lens and the second negative lens is 5.95 ~ 7.80mm, the 6th positive lens And the 7th airspace between negative lens is 2.75 ~ 0.10mm, it is described before between air between group lens and the 6th positive lens It is divided into 5.75 ~ 9.35mm；Wherein, lens are most organized afterwards to described by the lens surface of the first negative crescent moon lens of object side from the preceding group of lens Most D1, the imaging lens module are expressed as by the distance on optical axis untill the lens surface of the 6th positive lens of object side Focal length be expressed asf, it is described after group lens focal length be expressed asfb, and meet relational expression：0.33 ＜f/fb＜ 0.7,1.0 ＜ D1/f＜ 5.1.
- 4. wisdom community parking management system according to claim 3, it is characterised in thatSettingNdfLFor the refractive index to d lines of the 5th negative lens,vdfLFor pair of the 5th negative lensdThe Abbe of line Number,vd2pPair of the positive lens of the compound lens formed for the 6th positive lens and the 7th negative lensdThe Abbe number of line,vd2n Pair of the negative lens of the compound lens formed for the 6th positive lens and the 7th negative lensdThe Abbe number of line, and meet following Relational expression：NdfL＞ 3.8,50 ＜vdfL＜ 58,8 ＜vd2p-vd2n＜ 44.
- 5. wisdom community parking management system according to claim 4, it is characterised in thatIt is describedNdfL＞ 4.8.
- 6. wisdom community parking management system according to claim 5, it is characterised in thatThe miniature video camera lens combination also meets following relationship：0.4 ＜ (CT 1 +CT 2 +CT 3 +CT 4 +CT 5)/f＜ 0.55, whereinThe focal length of the imaging lens module isf, thickness of the first negative crescent moon lens on optical axis isCT 1, described second is negative Thickness of the lens on optical axis isCT 2, thickness of the 3rd negative lens on optical axis isCT 3, the 4th positive lens is in optical axis On thickness beCT 4, thickness of the 5th negative lens on optical axis isCT 5。
- 7. wisdom community parking management system according to claim 6, it is characterised in thatThe Abbe number of first negative crescent moon lens of group lens is less than 18 before described, and the Abbe number of the second negative lens is more than 13 and is less than 32, the Abbe number of the 3rd negative lens is more than 23 and less than 35, the Abbe number of the 4th positive lens and the Abbe number of the 5th negative lens Ratio is more than 3.5 and less than 4.3.
- 8. wisdom community parking management system according to claim 7, it is characterised in thatGroup lens and the rear group lens comprise at least one group of compound lens before described.
- 9. wisdom community parking management system according to claim 8, it is characterised in thatThe second negative lens and the 3rd negative lens of group lens before described, and it is described after the group positive lens of lens the 8th and the 9th negative Mirror, compound lens is respectively constituted.
- A kind of 10. method of work of wisdom community parking management system, it is characterised in that including：Car license recognition drives into the ground induction coil that the bottom of the deceleration strip in area is set with supervising device and in banister；The input of the output end of the ground induction coil and supervising device is electrically connected with, the control output end of the supervising device with The control terminal of the drive mechanism of door shelves is electrically connected with；The supervising device is suitable to the car plate image data shot after ground induction coil triggering, and the car plate image data is sent To cell server so that the car plate is identified, confirmed after, then control supervising device open door shelves clearance vehicle.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20180209 |