A kind of carrier loader platform and vehicle wheelbase checkout equipment thereof and method
Technical field
The present invention relates to vehicle storage equipment and the method in full-automatic storage garage, particularly a kind of vehicle wheelbase checkout equipment and method improving the overall Transport Vehicle efficiency in garage.
Background technology
In current various forms of automated three-dimensional storage garage, be short of the equipment to vehicle wheelbase detection or device, adaptability only by carrier forces carrying vehicle, its core is all the contacts by carrier mechanism and vehicle tyre, realize the automatic transporting operation of vehicle in garage, but itself there is structural limits in carrier mechanism, add contour of the vehicle varied and constantly make new advances, when unknown wheelbase, very easily damage is caused to vehicle in handling process, especially for clipping carrier.
For a certain vehicle, its wheel base dimension is changeless, if but adopt push rod shaft device for detecting distance to detect its wheelbase, it represents a wheelbase (as long as namely the actual wheel base dimension of vehicle is within the scope of this by arranging a gear value, then all use this gear to represent), alternatively this gear value is the intermediate value of this wheelbase, and the permission size of this scope is the clamping adaptive faculty depending on carrier mechanism.As shown in Figure 1, push rod 10 can be detected at the store in a warehouse wheelbase that enters to install additional on the car bearing platform of the car Room or on the lifter car bearing platform of the car Room in garage of automated three-dimensional, wheelbase detects on push rod 10 and is evenly arranged multiple detector switch 20, wheelbase detects push rod 10 and directly presses against by movable pressing board 40 mounted thereto detector switch 20 action that wheel 30 side makes to be forced into, carry out rough calculation and go out a vehicle wheelbase gear (i.e. value range, be illustrated as 3 gear L1, L2, the situation of L3, in figure, arrow is pushrod movement direction), the quantity that this value range size relies on detector switch 20 to arrange in limited length, more multiregion value is less for quantity, namely the wheelbase recorded is more accurate.Current this method can realize the detection to wheelbase, but there is following problem:
1) be limited to the size of installing space size on detector switch body dimension and push rod, often can not arrange a lot, cause the wheelbase value measured comparatively large, not accurately, cause carrier still to there is the risk damaged vehicle conveying;
2) push rod directly pushes wheel face, has slight damage to wheel surface, can cause sense of discomfort to car owner.
Therefore carry out automatically detecting being absolutely necessary to the wheel base dimension of vehicle, if vehicle wheelbase is excessive or too small, then carrier effectively by vehicle carrier, can not can damage vehicle simultaneously.And for wheel holding formula or clipping carrier, it not only needs to know whether Current vehicle wheelbase exceeds its carrying limit, it also needs the accurate size knowing vehicle wheelbase, length between such ability Correctly adjust front and back wheel clamping limb, realize safety to accommodate or wheel holding, avoid causing damage to vehicle.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind ofly can carry out high precision test to vehicle wheelbase and testing process can be avoided causing the carrier loader platform of damage and vehicle wheelbase checkout equipment thereof and method to vehicle.
To achieve these goals, the invention provides a kind of vehicle wheelbase checkout equipment, be arranged on the carrier loader platform in full-automatic storage garage, wherein, comprise:
Multiple weighing platform, the wheel position corresponding respectively to vehicle to be accessed is arranged on described carrier loader platform, and the upper surface of each described weighing platform is concordant with the upper surface of described carrier loader platform, for supporting the wheel of described vehicle to be accessed;
Multiple LOAD CELLS, correspondence is arranged on the bottom surface of each described weighing platform respectively, for gathering the weight information of described vehicle to be accessed, and amplifies output after described weight information being converted to analog electric signal; And
Data acquisition processing system, be connected with described multiple LOAD CELLS, for receiving described analog electric signal, utilize torque balance principle to calculate wheel center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel center of effort's point position calculation.
Above-mentioned vehicle wheelbase checkout equipment, wherein, described multiple weighing platform comprises 4 pieces of rectangular flats, and the bottom surface of each described rectangular flat is symmetrical arranged 4 LOAD CELLS.
Above-mentioned vehicle wheelbase checkout equipment, wherein, described 4 LOAD CELLS are separately positioned on 4 rectangular angular places of described rectangular flat.
Above-mentioned vehicle wheelbase checkout equipment, wherein, described multiple weighing platform comprises 4 pieces of triangle flat plates, and the bottom surface of each described triangle flat plate arranges 3 LOAD CELLS, and described 3 LOAD CELLS are separately positioned on three angles of described triangle flat plate.
Above-mentioned vehicle wheelbase checkout equipment, wherein, described data acquisition processing system comprises:
Data acquisition module, exports for receiving described analog electric signal and being converted to digital quantity electric signal;
Data processing module, for carrying out computing to described digital quantity electric signal and utilizing torque balance principle to calculate wheel center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel center of effort's point position calculation;
Output module, according to the operation result of described data processing module, information is passed through in output vehicle wheelbase information or detection; And
Display module, shows described vehicle wheelbase information or information is passed through in detection.
Above-mentioned vehicle wheelbase checkout equipment, wherein, described data acquisition processing system also comprises:
Alarm module, described output module output detections is not reported to the police by information or when detecting error message.
In order to realize above-mentioned purpose better, present invention also offers a kind of carrier loader platform, being arranged at garage of automatically storing in a warehouse, wherein, comprise above-mentioned vehicle wheelbase checkout equipment.
In order to realize above-mentioned purpose better, present invention also offers a kind of vehicle wheelbase detection method, wherein, comprising the steps:
S100, arrange multiple weighing platform, the wheel position corresponding respectively to vehicle to be accessed arranges multiple weighing platform on carrier loader platform, and the upper surface of each described weighing platform is concordant with the upper surface of described carrier loader platform;
S200, multiple LOAD CELLS is set, 3 or 4 LOAD CELLS are symmetrical arranged respectively on the bottom surface of each described weighing platform, for gathering the weight information of described vehicle to be accessed, and amplify output after described weight information being converted to analog electric signal;
S300, data acquisition and procession, according to the described analog electric signal that described LOAD CELLS exports, utilize torque balance principle to calculate wheel center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel center of effort's point position calculation.
Above-mentioned vehicle wheelbase detection method, wherein, described step S300 comprises:
S301, with any point on carrier loader platform for initial point, set up two coordinate-systems, then the coordinate figure that in 4 LOAD CELLS on arbitrary weighing platform, each LOAD CELLS center of effort is corresponding is (X
1, Y
1), (X
2, Y
2), (X
3, Y
3), (X
4, Y
4);
S302, set the coordinate of arbitrary wheel center point as (X
a, Y
a), then 4 LOAD CELLS detect the value W that weighs
1a, W
2a, W
3a, W
4a, then the weight of described wheel is W
a=W
1a+ W
2a+ W
3a+ W
4a, therefore:
X-direction torque balance: W
a× X
a=W
1a× X
1+ W
2a× X
2+ W
3a× X
3+ W
4a× X
4
Y direction torque balance: W
a× Y
a=W
1a× Y
1+ W
2a× Y
2+ W
3a× Y
3+ W
4a× Y
4
Thus draw the concrete coordinate figure of described wheel center center of effort, as follows:
X
a=(W
1a×X
1+W
2a×X
2+W
3a×X
3+W
4a×X
4)/W
a
Y
a=(W
1a×Y
1+W
2a×Y
2+W
3a×Y
3+W
4a×Y
4)/W
a
S303, obtain the concrete coordinate figure (X of other 3 wheel center center of effort
b, Y
b), (X
c, Y
c) and (X
d, Y
d);
S304, front axle mid point Z
1with hind axle mid point Z
2between distance be vehicle wheel base length,
Front axle center Z
1the coordinate of point is:
Hind axle center Z
2the coordinate of point is:
Z
1point and Z
2distance between point:
Above-mentioned vehicle wheelbase detection method, wherein, also comprises the steps:
Information is passed through in S400, display vehicle wheelbase information or detection.
Above-mentioned vehicle wheelbase detection method, wherein, also comprises the steps:
S500, when detection not by or detect to stagger the time and reported to the police.
Technique effect of the present invention is:
The final testing result of the present invention with the millimeter display of actual range unit, do not exist gear point, reflection be actual vehicle wheelbase.Therefore high precision test can be carried out to vehicle wheelbase and testing process can be avoided causing damage to vehicle, as enter the car Room be outside equipped with bicycle parking stop waiting area, also can this vehicle wheelbase checkout equipment be set in this region, realize entering into the wheelbase testing before the car Room, as vehicle wheelbase exceeds parking apparatus carrying dimension limit, car owner or this vehicle of garage keeper also can be pointed out in advance not to enter garage, avoid damaging the carrying of vehicle, improve the overall Transport Vehicle efficiency in garage.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that prior art installs push rod additional on equipment;
Fig. 2 is carrier loader platform and the vehicle wheelbase checkout equipment schematic diagram of one embodiment of the invention;
Fig. 3 is the A-A partial sectional view of Fig. 2;
Fig. 4 is the vehicle wheelbase Cleaning Principle figure of one embodiment of the invention;
Fig. 5 is the data acquisition processing system structured flowchart of one embodiment of the invention;
Fig. 6 is vehicle wheelbase detection method process flow diagram of the present invention.
Wherein, Reference numeral
Prior art
10 wheelbases detect push rod
20 detector switches
30 wheels
40 movable pressing boards
L1 gear 1
L2 gear 2
L3 gear 3
The present invention
1 carrier loader platform
2 weighing platforms
21 weighing platform A
22 weighing platform B
23 weighing platform C
24 weighing platform D
25 mounting brackets
3 LOAD CELLS
4 data acquisition processing systems
41 data acquisition modules
42 data processing modules
43 output modules
44 display modules
45 alarm modules
5 signal amplifiers
6 wheels
Z
1front axle central point
Z
2hind axle central point
A off-front wheel center center of effort
B the near front wheel center center of effort
C left rear wheel center center of effort
D off hind wheel center center of effort
E LOAD CELLS center of effort
M gap
S100-S300 step
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
See carrier loader platform and vehicle wheelbase checkout equipment schematic diagram that Fig. 2, Fig. 2 are one embodiment of the invention.Carrier loader platform 1 of the present invention, be arranged at garage of automatically storing in a warehouse, other part-structures, the annexation and function etc. thereof of this carrier loader platform 1 are more ripe prior art, therefore do not repeat at this, are only described in detail vehicle wheelbase checkout equipment of the present invention and method below.
See the A-A partial sectional view that Fig. 3 and Fig. 4, Fig. 3 are Fig. 2, Fig. 4 is the vehicle wheelbase Cleaning Principle figure of one embodiment of the invention.Vehicle wheelbase checkout equipment of the present invention, be arranged on the carrier loader platform 1 in full-automatic storage garage, comprise: multiple weighing platform 2, wheel 6 position corresponding respectively to vehicle to be accessed is arranged on described carrier loader platform 1, and the upper surface of each described weighing platform 2 is concordant with the upper surface of described carrier loader platform 1, for supporting the wheel 6 of described vehicle to be accessed, weighing platform 2 rigidity need meet carries car requirement and with carrier loader platform 1 without scratching; Multiple LOAD CELLS 3, correspondence is arranged on the bottom surface of each described weighing platform 2 respectively, for gathering the weight information of described vehicle to be accessed, and amplify output (preferred analog quantity 4-20mA) by signal amplifier 5 after described weight information is converted to analog electric signal, LOAD CELLS 3 structure will coordinate type selecting with mounting means, the preferred cantilevered LOAD CELLS 3 of the present invention, as long as but can meet the collection of weight information is required, unrestricted to the structure of LOAD CELLS 3; Data acquisition processing system 4, be connected with described multiple LOAD CELLS 3, for receiving described analog electric signal, utilize torque balance principle to calculate wheel 6 center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel 6 center of effort's point position calculation.
In the present embodiment, described multiple weighing platform 2 comprises 4 pieces of rectangular flats (i.e. weighing platform A21, weighing platform B22, weighing platform C23, weighing platform D24), and the bottom surface of each described rectangular flat is symmetrical arranged 4 LOAD CELLS 3.Wherein, described 4 LOAD CELLS 3 are preferably arranged on 4 rectangular angular places of described rectangular flat respectively.In another embodiment of the invention, described multiple weighing platform 2 comprises 4 pieces of triangle flat plates, the bottom surface of each described triangle flat plate arranges 3 LOAD CELLS 3, (not shown) on three angles that described 3 LOAD CELLS 3 are preferably separately positioned on described triangle flat plate.
See data acquisition processing system 4 structured flowchart that Fig. 5, Fig. 5 are one embodiment of the invention.In the present embodiment, described data acquisition processing system 4 can be programmable logic controller (PLC) (i.e. PLC) or embedded scm, comprising: data acquisition module 41, exports for receiving described analog electric signal and being converted to digital quantity electric signal; Data processing module 42, for carrying out computing to described digital quantity electric signal and utilizing torque balance principle to calculate wheel 6 center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel 6 center of effort's point position calculation; Output module 43, according to the operation result of described data processing module 42, information is passed through in output vehicle wheelbase information or detection; And display module 44 (such as can be indication lamp box or display screen etc.), for showing described vehicle wheelbase information or information is passed through in detection.Described data acquisition processing system 4 also can comprise alarm module 45 (such as can be pilot lamp, hummer or display screen etc.), for not reported to the police by information or when detecting error message when described output module 43 output detections.
Be vehicle wheelbase detection method process flow diagram of the present invention see Fig. 6, Fig. 6.Vehicle wheelbase detection method of the present invention, comprises the steps:
Step S100, arrange multiple weighing platform 2, wheel 6 position corresponding respectively to vehicle to be accessed arranges multiple weighing platform 2 on carrier loader platform 1, and the upper surface of each described weighing platform 2 is concordant with the upper surface of described carrier loader platform 1.
Step S200, multiple LOAD CELLS 3 is set, 3 or 4 LOAD CELLS 3 are symmetrical arranged respectively on the bottom surface of each described weighing platform 2, for gathering the weight information of described vehicle to be accessed, and amplify output after described weight information being converted to analog electric signal;
In the present embodiment, specifically can be, first carrier loader platform 1 delimit the maximum parking area of vehicle 4 wheels 6, after parking area delimited, first the platform steel plate of these 4 region overlay is cut down after edging as weighing platform 2, then at 4 angles of each weighing platform 2, be connected with carrier loader platform 1 respectively by mounting bracket 25, each mounting bracket 25 can be arranged a maximum range is such as the LOAD CELLS 3 of 1000KG, each weighing platform 2 arranges 4 LOAD CELLS 3, 4 weighing platforms 2 of whole vehicle wheelbase checkout equipment arrange 16 LOAD CELLS 3 altogether, after LOAD CELLS 3 installs, by its signal wire access data acquisition processing system 4 (such as PLC system).Need to ensure that these 4 weighing platforms 2 lie in a horizontal plane in 4 LOAD CELLS 3 of its correspondence completely, and the steel plain of weighing platform 2 is concordant with the upper surface of carrier loader platform 1, the two has a gap M each other, this gap M about has 2-10 millimeter, be preferably 5mm, to ensure not scratch therebetween.
Step S300, data acquisition and procession, according to the described analog electric signal that described LOAD CELLS 3 exports, utilize torque balance principle to calculate wheel 6 center of effort's point position of each described vehicle to be accessed, and go out the vehicle wheelbase of described vehicle to be accessed according to each described wheel 6 center of effort's point position calculation.
Wherein, described step S300 specifically comprises:
Step S301, with any point on carrier loader platform 1 for initial point (being preferably central point), set up two coordinate-systems, take millimeter as cell, each LOAD CELLS 3 center of effort then on arbitrary weighing platform 2 has oneself coordinate figure, if the coordinate figure that in 4 LOAD CELLS, each LOAD CELLS 3 center of effort is corresponding is (X
1, Y
1), (X
2, Y
2), (X
3, Y
3), (X
4, Y
4);
Step S302, set the coordinate of arbitrary wheel 6 central point as (X
a, Y
a), then 4 LOAD CELLS 3 detect the value W that weighs
1a, W
2a, W
3a, W
4a, then the weight of described wheel 6 is W
a=W
1a+ W
2a+ W
3a+ W
4a, therefore:
X-direction torque balance: W
a× X
a=W
1a× X
1+ W
2a× X
2+ W
3a× X
3+ W
4a× X
4
Y direction torque balance: W
a× Y
a=W
1a× Y
1+ W
2a× Y
2+ W
3a× Y
3+ W
4a× Y
4
Thus draw the concrete coordinate figure of described wheel 6 center center of effort, as follows:
X
a=(W
1a×X
1+W
2a×X
2+W
3a×X
3+W
4a×X
4)/W
a
Y
a=(W
1a×Y
1+W
2a×Y
2+W
3a×Y
3+W
4a×Y
4)/W
a
Step S303, obtain the concrete coordinate figure (X of other 3 wheel 6 center center of effort
b, Y
b), (X
c, Y
c) and (X
d, Y
d);
Step S304, front axle mid point Z
1with hind axle mid point Z
2between distance be vehicle wheel base length,
Front axle center Z
1the coordinate of point is:
Hind axle center Z
2the coordinate of point is:
Z
1point and Z
2distance between point:
Also can comprise:
Information is passed through in step S400, display vehicle wheelbase information or detection.And, step S500, when detection not by or detect to stagger the time and reported to the police.If the wheelbase namely calculated exceeds parking apparatus carrying dimension limit, then data acquisition processing system 4, export corresponding prompt messages, informing that car owner or this vehicle wheelbase of garage keeper transfinite can not stored in garage.
Be described for 4 of weighing platform A21 LOAD CELLS 3 center of effort below, the coordinate of 4 LOAD CELLS center of effort E is (X respectively
1, Y
1), (X
2, Y
2), (X
3, Y
3), (X
4, Y
4), when wheel 6 stops on weighing platform A21, set the coordinate of wheel 6 central point as (X
a, Y
a), now 4 LOAD CELLS 3 detect the value W that weighs
1a, W
2a, W
3a, W
4a(unit K G), equal with retroaction according to acting force, then off-front wheel effect is W to the weight of weighing platform A21
a=W
1a+ W
2a+ W
3a+ W
4a, whole platform is actionless simultaneously, and according to torque balance principle, 5 force positions are balances for the true origin set, and namely following two formula set up:
X-direction torque balance: W
a× X
a=W
1a× X
1+ W
2a× X
2+ W
3a× X
3+ W
4a× X
4
Y direction torque balance: W
a× Y
a=W
1a× Y
1+ W
2a× Y
2+ W
3a× Y
3+ W
4a× Y
4
Thus draw the concrete coordinate figure of off-front wheel center center of effort A, as follows:
X
a=(W
1a×X
1+W
2a×X
2+W
3a×X
3+W
4a×X
4)/W
a
Y
a=(W
1a×Y
1+W
2a×Y
2+W
3a×Y
3+W
4a×Y
4)/W
a
In like manner, the concrete coordinate figure of other 3 wheel 6 center center of effort of weighing platform B22, weighing platform C23 and weighing platform D24 can be obtained:
The near front wheel center center of effort B (X
b, Y
b);
Left rear wheel center center of effort C (X
c, Y
c);
Off hind wheel center center of effort D (X
d, Y
d).
Center of effort because of automobile 4 tires is positive dirction or isosceles trapezoid, then vehicle wheel base length is front axle mid point Z
1with hind axle mid point Z
2between distance.
Front axle center Z
1the coordinate of point is:
Hind axle center Z
2the coordinate of point is:
Z
1point and Z
2distance between point, the i.e. wheelbase of automobile, draw according to Pythagorean theorem:
Because coordinate unit lattice adopt millimeter, after testing, within the vehicle wheelbase precision that this checkout equipment obtains reaches 5mm, drastically increase wheelbase measuring accuracy, avoid and any damage is caused to vehicle.
In like manner, adopt similar computing method, the front-wheel certificate of vehicle, rear tread, angle value between vehicle center and carrier loader platform 1 center line can be calculated.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.