The truck alignment system and the method for container handling crane
Technical field
The present invention relates to container handling crane, truck is at the truck contraposition method and system of spreader position when specially referring to truck and loading and unloading under container handling crane.
Background technology
The freight container shipping enterprise development has proposed the more requirement of Gao Gengxin to the technology of container handling crane; Improving the work production rate, reduce labor intensity of operating personnel, is the eternal problem of container handling crane technical development.
The loading and unloading of freight container are the bottlenecks that the restriction Container Handling Efficiency improves between container handling crane and the ground container truck, how to improve between crane hanger and the container truck to bit rate, thereby the raising handling efficiency is that portal crane maker and relevant technologies expert are endeavouring the content studied always.
For non-automaticization of freight container harbour, the location still relies on driver's the operating experience of container handling crane and truck driver's cooperation to carry out contraposition basically between suspender and the container lorry.Therefore; crane driver and truck driver's skill level and operating experience; determined suspender to bit rate; determined the handling speed of hoisting crane to truck; if the driver is unskilled, through regular meeting suspender appears for aiming at the freight container on the ground handling trolley, and should jenny; the situation of mobile ground transport trolley again, human element has had a strong impact on the work production rate of container handling crane.
For automated container dock, when if the hoisting crane of automation mechanized operation loads and unloads the truck that has the people to operate, crane hanger is to rely on electric system to come self-orientation to the loading and unloading target, and truck still relies on driver's operating experience to come crane hanger is carried out contraposition.Therefore; truck driver's skill level and operating experience; determined suspender to bit rate; determined the handling speed of hoisting crane to truck; if the driver is unskilled; occur that suspender puts in place and situation that truck moves around through regular meeting, or unmanned hoisting crane and the situation that has people's truck at all can't cooperate, had a strong impact on the work production rate of automated container dock.
No matter being conventional harbour of freight container or automatic dock, how improving aligning accuracy and the speed of truck driver to container crane sling, improve terminal operation efficient, is the technical barrier that presses for solution that harbour and hoisting crane maker are faced.
Realize that the freight container between ground truck and the crane hanger loads and unloads fast, must guarantee that both can both move to correct position.
Summary of the invention
Technical matters to be solved by this invention provides a kind of truck contraposition method and system, and indication truck driver makes things convenient for and carries out the truck contraposition exactly.
The present invention solves the problems of the technologies described above the truck alignment system that the technical scheme that adopts provides a kind of container handling crane, comprising:
Image shows the pre-determined bit subsystem, comprising:
Image pickup apparatus is located at top, cranage position, is used for taking in real time the truck image;
Video frequency collection card is connected in image pickup apparatus, is used for the truck image that the images acquired picture pick-up device is taken, and converts digital image to;
Pattern process computer, with the video acquisition card connection, the crane simulation suspender profile that is used for prestoring synthesizes in described digital image, and exports synthetic image in real time by one first transmission network;
Multimedia synchro control card is connected in pattern process computer, is used for the synchronous output of control chart picture;
Displaying screen controller receives described synthetic image by first transmission network, and exports to read-out demonstration;
Read-out is located at the place ahead, cranage position, is connected to displaying screen controller, is used to show described synthetic image;
Scanning locating and displaying subsystem comprises:
At least two cover laser-scan equipment at least respectively are provided with a cover laser-scan equipment on the forward and backward crossbeam of hoisting crane, be used to gather the profile information of freight container on truck or the truck, and are transferred to a computer system by one second transmission network;
Computer system is carried out data filter, feature match to described profile information, and compares with the theory setting value, analyzes described truck or the described freight container placement error value with respect to hoisting crane;
The error read-out is located at the place ahead, cranage position, and is connected in computer system, is used to show described placement error value.
The truck alignment system of described container handling crane, wherein, described first transmission network comprise first network commutator that is connected in described pattern process computer, be connected in second network commutator of described displaying screen controller and be connected in first network commutator and second network commutator between the TCP/IP network.
The truck alignment system of described container handling crane, wherein, described second transmission network comprises router, be connected between router and described each laser-scan equipment and be connected TCP/IP network between router and the described computer system.
The truck alignment system of described container handling crane also comprises the prompting direction board of being located at the place ahead, cranage position;
Described computer system also is connected with the hoisting crane logic control element, is used for described placement error value is transferred to the hoisting crane logic control element; The hoisting crane logic control element is connected with described prompting direction board, according to described placement error value send forward, backward, halt instruction, be presented at and remind on the direction board.
The truck alignment system of described container handling crane can comprise two image pickup apparatus, be located at respectively on the hoisting crane crossbeam and the hoisting crane crossbeam on, take two truck images from different perspectives, and utilize described pattern process computer to switch two truck images of output, on described read-out, show, help the clearer truck position of learning of driver.
The truck alignment system of described container handling crane can comprise two cover laser-scan equipment, is located at respectively on the forward and backward crossbeam of hoisting crane, is used to obtain on truck or the truck freight container along the coordinate of cart track alignment.
The truck alignment system of described container handling crane, can comprise quadruplet laser-scan equipment, on the forward and backward crossbeam of hoisting crane, respectively be provided with two cover laser-scan equipment, four angles of corresponding truck respectively are used to obtain freight container on truck or the truck along the coordinate of cart track alignment, along the coordinate and the deflection angle of trolley travelling direction.
The present invention also provides a kind of truck of container handling crane to method for position, comprising:
Pre-determined bit, it comprises the steps:
A) when truck is parked in below, cranage position, take the truck image in real time by the image pickup apparatus of being located on the hoisting crane;
B) utilize video frequency collection card to gather the truck image that described image pickup apparatus is taken in real time, and convert digital image to, be transferred in the pattern process computer;
C) utilize described pattern process computer that the crane simulation suspender profile that prestores is synthesized in described digital image, then synthetic image is outputed on the image display panel of being located at the place ahead, cranage position in real time, adjust truck for the truck driver according to the image of image display panel, make it consistent with simulation spreader position on the image display panel;
Accurately locate, it comprises the steps:
D) after pre-determined bit is finished, utilize the laser-scan equipment of being located on the forward and backward crossbeam of hoisting crane to carry out 3-D scanning, gather the profile information of freight container on truck or the truck, and be transferred to a computer system;
E) utilize described computer system that described profile information is carried out data filter, feature match, and compare, analyze described truck or described freight container placement error value with respect to hoisting crane with the theory setting value;
F) utilize described computer system that described placement error value is transferred to the error amount read-out of being located at the place ahead, cranage position, show placement error value, the driver adjusts truck according to error amount for truck, is zero up to error amount.
The truck of described container handling crane is to method for position, wherein, in described step c), utilize first network commutator be connected in described pattern process computer, be connected in second network commutator of described displaying screen controller and be connected in TCP/IP network between described two network commutators and form first transmission network and transmit described synthetic image.
The truck of described container handling crane is to method for position, wherein, in described step d), utilize router, be connected between router and described each laser-scan equipment and the TCP/IP network between router and the described computer system is formed the profile information that second transmission network transmits described truck or described freight container.
The truck of described container handling crane is to method for position, wherein, in described step a), utilization be located on the hoisting crane crossbeam and crossbeam on two image pickup apparatus, take two truck images from different perspectives, and utilize described pattern process computer to switch two truck images of output, and on read-out, show, help the clearer understanding truck of driver position.
The truck of described container handling crane is to method for position, wherein, described accurate location comprises that also step g) utilizes described computer system that described placement error value is transferred to the hoisting crane logic control element, the hoisting crane logic control element according to described placement error value send forward, backward, halt instruction, be presented on the prompting direction board of being located at the place ahead, cranage position.
The truck alignment system of described container handling crane, wherein, in described step d), obtain on truck or the truck freight container along the coordinate of cart track alignment by being located at two on the forward and backward crossbeam of hoisting crane cover laser-scan equipment respectively, and in described step e), calculate truck or freight container deviation delta X=X-X ' by computer system along the cart track alignment, with this as placement error value.
The truck of described container handling crane is to method for position, wherein, in described step d), by corresponding to four laser-scan device scans at four angles of truck and calculate freight container center B (X, Y), and in described step e), by computer system with center B (X, Y) with theoretical center position A (X ', Y ') relatively, calculate deviation delta X=X-X ' along the cart track alignment, along the deviation delta Y=Y-Y ' of trolley travelling direction, and deflection angle
, with this as placement error value.
The truck alignment system and the method for container handling crane of the present invention, by being located at read-out and the direction board in the driver visual field, the place ahead, cranage position, guiding truck driver carries out the position adjustment of truck, and the accurate location of the pre-determined bit of dual-purpose image and scanning, make the driver truck can be parked in assigned address rapidly and accurately, be convenient to cooperate, realized the quick loading and unloading of truck and crane hanger, improved stevedoring efficient with crane hanger.
Description of drawings
Further specify the features and advantages of the present invention below in conjunction with the drawings and specific embodiments, wherein:
Fig. 1 is the truck alignment system arrangement plan of container handling crane of the present invention;
Fig. 2 is the read-out scheme drawing of the truck alignment system of container handling crane of the present invention;
Fig. 3 is the structural representation that the image of the truck alignment system of container handling crane of the present invention shows the pre-determined bit subsystem;
Fig. 4 is the structural representation of scanning locating and displaying subsystem of the truck alignment system of container handling crane of the present invention;
Fig. 5 is the pre-determined bit diagram of circuit of the truck of container handling crane of the present invention to method for position;
Fig. 6 is the accurate positioning flow figure of the truck of container handling crane of the present invention to method for position;
Fig. 7 is that the truck of container handling crane of the present invention is to method for position cart scanning direction freight container scheme drawing;
Fig. 8 is that the truck of container handling crane of the present invention is to method for position cart scanning direction truck scheme drawing;
Fig. 9 is the truck position error value-based algorithm scheme drawing of the truck of container handling crane of the present invention to method for position.
The specific embodiment
Fig. 1 is the truck alignment system arrangement plan of container handling crane of the present invention, as shown in Figure 1, has parked truck 20 in the loading and unloading position of container handling crane 10, for crane hanger 11 freight container 30 is loaded onto.
Truck alignment system of the present invention is divided into image and shows pre-determined bit subsystem 100 and scanning locating and displaying subsystem 110.Wherein image show pre-determined bit subsystem 100 structural representation as shown in Figure 3, comprise image pickup apparatus 101, be connected in image pickup apparatus 101 video frequency collection card 102, be connected in video frequency collection card 102 pattern process computer 103, be connected in multimedia synchro control card 104, displaying screen controller 105, the read-out 106 of pattern process computer 103 and be connected in pattern process computer 103 and displaying screen controller 105 between first transmission network 107.Wherein:
See also shown in Figure 1ly, image pickup apparatus 101 is located at cranage position top, is used for taking in real time the truck image.In the present embodiment, be provided with two image pickup apparatus, be respectively crossbeam camera 101a that is located on the hoisting crane crossbeam 12 and the crossbeam camera 101b that is located on the hoisting crane after cross member 13, from the realtime graphic of differing heights and angle shot truck 20, be convenient to the truck driver and more clearly understand truck 20 present positions.Certainly, also an image pickup apparatus or more a plurality of can only be set.The truck image that video frequency collection card 102 images acquired picture pick-up devices 101 are taken, and convert thereof into digital image, input to pattern process computer 103.Pattern process computer 103 synthesizes the crane simulation suspender profile that prestores in described digital image and by first transmission network 106 to be exported.Multimedia synchro control card 104 is connected in pattern process computer 103, the synchronous output of control chart picture.
In one embodiment, first transmission network 107 can comprise the TCP/IP network 107c between the first network commutator 107a that is connected in pattern process computer 103, the first network commutator 107b that is connected in displaying screen controller 105 and two network commutators, yet, can also adopt the network and the network equipment of other agreements not as limit.Can output to displaying screen controller 105 with exporting synthetic image in real time by first transmission network 107.
Displaying screen controller 105 receives described synthetic image, and exports to read-out 106 demonstrations.Read-out 106 should be located at the place that the driver has optimum field, on left forward side, the cranage for example illustrated in figures 1 and 2 position hoisting crane doorframe column 14, perhaps be located under the dead ahead hoisting crane doorframe crossbeam of cranage position, the composograph of real-time display set truck 20 and suspender profile, help the driver to adjust truck and make it and shield simulation to load and unload the suspender loading position consistent, finish pre-determined bit.
Scanning locating and displaying subsystem 110 can comprise at least two cover laser-scan equipment 111, computer system 112, be connected in second transmission network 113 and the error read-out 114 of laser-scan equipment 111 and computer system 112.
Please consult shown in Figure 4 in conjunction with Fig. 1, in the present embodiment, scanning locating and displaying subsystem 110 preferably comprises quadruplet laser-scan equipment 111, before hoisting crane, two cover laser-scan equipment respectively are set on the after cross member, be respectively the laser-scan equipment 111a on the front cross rail 15, laser-scan equipment 111c on 111b and the after cross member 13,111d, four angles of freight container 30 (unloading the situation of freight container corresponding to suspender from truck) on corresponding truck 20 or the truck, be used to gather the profile information of freight container 30 on truck 20 or the truck, the profile information of being gathered according to quadruplet laser-scan equipment 111, can obtain along the coordinate of cart track alignment X, along coordinate and the deflection angle of trolley travelling direction Y, and be transferred to computer system 112 by second transmission network 113.In the present embodiment, second transmission network 113 can comprise a router one 13a, be connected between router and each the laser-scan equipment 111 and be connected TCP/IP network 113b between router and the computer system 112, certainly, can also adopt the network and the network equipment of other agreements not as limit.
The profile information of 112 pairs of laser-scan equipment of computer system, 111 inputs carries out data filter, feature match, and compare with the theory setting value, analyze truck or freight container placement error value with respect to hoisting crane, these error amounts can comprise displacement error Δ X along cart track alignment X, along displacement error Δ Y and the deflection angle β of trolley travelling direction Y, wherein error delta X needs the truck driver to adjust the truck position to eliminate, and the data that error delta Y and deflection angle β need use when being crane hanger 11 loading and unloading.In one embodiment of the present of invention shown in Figure 4, quadruplet laser-scan equipment 111 is set obtains this three parameters simultaneously, be convenient to the suspender contraposition, yet in another embodiment, one cover laser-scan equipment respectively is set on the forward and backward crossbeam of hoisting crane, error delta X can be obtained through overscanning and calculating, also the truck contraposition can be finished.
See also illustrated in figures 1 and 2ly, error read-out 114 is located at left forward side, cranage position hoisting crane doorframe column 14, and it is connected in computer system 112, is used to show placement error value.
In the embodiment shown in fig. 4, understand for the ease of the driver, scanning locating and displaying subsystem 110 comprises that also one reminds direction board 115, please consult Fig. 1 and Fig. 2 simultaneously, remind direction board 115 to be located at equally on the hoisting crane doorframe column 14, it indicates the driver to take the contraposition measure based on placement error value, and system's specific design is as follows:
Computer system 103 is used for placement error value is transferred to hoisting crane logic control element 16 by being connected with hoisting crane logic control element 16 such as interfaces such as RS232.16 of hoisting crane logic control elements are connected with reminding direction board 115, according to the X in the placement error value to displacement error Δ X send forward, backward, halt instruction, be presented on the corresponding indicator lamp of prompting direction board 115.Hoisting crane logic control element 16 also can be according to the information that obtains from outside truck identification system, reminding whether wrong road of direction board 115 indication drivers, promptly enters wrong hoisting crane.After loading and unloading are finished, remind the indicator lamp indication driver that leaves on the direction board 115 to leave the loading and unloading position.
The truck that container handling crane of the present invention is described below in conjunction with Fig. 5 and Fig. 6 is to method for position, and this method comprises:
Pre-determined bit sees also Fig. 5, and it comprises the steps:
A) when truck 20 is parked in below, cranage position, take truck image (step S1) in real time by the image pickup apparatus of being located on the hoisting crane 101;
In this step a), both can utilize an image pickup apparatus being located at truck 20 tops to take the truck image, but be preferably utilize be located on the hoisting crane crossbeam 12 and after cross member 13 on two image pickup apparatus, take two truck images from different perspectives, and utilize described pattern process computer to switch two truck images of output, on read-out, show;
B) the truck image that utilizes video frequency collection card 102 images acquired picture pick-up devices 101 to take in real time, and convert digital image to, be transferred in the pattern process computer 103 (step S2);
C) utilize pattern process computer 103 that the crane simulation suspender profile that prestores is synthesized in the digital image of video frequency collection card 102 inputs (step S3), utilize the synchronizing of image output (step S4) of multimedia synchro control card control pattern process computer then, synthetic image is outputed to (step S5) on the image display panel 105 in real time.The realtime graphic of the demonstration of read-out 105 can be for truck driver observation truck and simulation suspender contrast profile, it is consistent with simulation spreader position on the image display panel up to the position of truck to adjust truck 20, in this zone, the more pinpoint relevant device of hoisting crane can detect the truck profile information;
In this step c), be to utilize the first network commutator 107a, the second network commutator 107b and be connected in TCP/IP network 107c between two network commutators to form first transmission network 107 and transmit synthetic image.
Accurately locate, it comprises the steps:
D) after pre-determined bit is finished, utilize the laser-scan equipment of being located on the forward and backward crossbeam 15,13 of hoisting crane 111 to carry out 3-D scanning, gather the profile information of freight container 30 on truck 20 or the truck, and be transferred to computer system 112 (step S11);
In this step d), utilize router one 13a and be connected router and each laser-scan equipment 111 between and the TCP/IP network 113b between router and the computer system 112 form the profile information that second transmission network 113 transmits truck 20 or freight container 30;
E) utilize the profile information of 112 pairs of trucks 20 of computer system or freight container 30 to carry out data filter, feature match, and compare, analyze truck 20 or freight container 30 placement error value (step S12) with respect to hoisting crane with the theory setting value;
F) utilize computer system 112 that placement error value is transferred on the error amount read-out 114, show placement error value (step S13), the driver adjusts truck according to error amount for truck;
Understand for the ease of the driver, accurately the location preferably comprises step
G) utilize computer system 112 that placement error value is transferred to hoisting crane logic control element 16, hoisting crane logic control element 16 according to placement error value send forward, backward, halt instruction (step S15), be presented on the prompting direction board of being located at the place ahead, cranage position (step S16);
In addition, the outside truck identification system of hoisting crane 10 can will be parked in the identity information and testing result notice hoisting crane logic control element 16 (the step S14) of the truck 20 under the hoisting crane 10, hoisting crane logic control element 16 is according to the information that obtains from outside truck identification system, reminding whether wrong road of direction board 115 indication drivers, promptly enter wrong hoisting crane.After loading and unloading are finished, remind the indicator lamp indication driver that leaves on the direction board 115 to leave the loading and unloading position.
By error read-out 114 and prompting direction board 115, constitute more comprehensive, a detailed directive system, the truck driver finishes from contraposition to the overall process of leaving in conjunction with the information of error of observation value read-out 114 and prompting direction board 115.
The method of calculating of placement error value is described in step e) below in conjunction with Fig. 7~Fig. 9:
To be defined as directions X along the cart track alignment, be defined as the Y direction, be defined as the Z direction along the vertical dimension direction along the moving of car direction.In cart scanning direction freight container scheme drawing shown in Figure 7 and cart scanning direction truck scheme drawing shown in Figure 8, after accurately the location begins, the both sides laser-scan equipment 111a~111d of the forward and backward crossbeam of hoisting crane uninterruptedly scans truck (freight container), record the profile information a ' b ' c ' d ' (not deflection) or a " b " c " d " (deflection) of truck (freight container), as shown in Figure 9.Can obtain the height of truck (freight container) by calculating, at the centre coordinate B on XY plane (X, Y), then with reference to the theoretical initial position of the truck that prestores in the computer system (freight container) the profile information abcd on XY plane and center A (X ', Y '), just but deflection angle calculates the center offset of current location from the initial position, promptly
Deviation delta X=X-X ' along the cart track alignment
Along the deviation delta Y=Y-Y ' of trolley travelling direction, and
Deflection angle
, and real-time update.
Because truck (freight container) itself is in crane job zone 40, the Y direction side-play amount can rely on the automatic position system of the hoisting crane of back to handle fully, and Δ Y is as the data that offer the hoisting crane automatic position system.So being directed to the departure Δ X=X-X ' of cart direction of truck travel direction is the present invention and guides truck 20 to carry out accurate location to need the parking error amount adjusted.Therefore in another embodiment, can be only in step d) obtain on truck or the truck freight container along the coordinate of cart track alignment by being located at the cover of two on the forward and backward crossbeam of hoisting crane laser-scan equipment respectively, and in step e), calculate truck or freight container deviation delta X=X-X ' by computer system along the cart track alignment, with this as placement error value.
Above embodiment explanation only is preferred embodiment explanation of the present invention, and those skilled in the art can make the replacement and the modification of other all equivalence according to the above embodiment of the present invention explanation.Yet these all equivalences of doing according to the embodiment of the invention are replaced and are revised, and belong to invention spirit of the present invention and reach by in the claim that claim defined.